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? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice 1 cat25c11/03/05/09/17 1k/2k/4k/8k/16k spi serial cmos eeprom doc. no. 1017, rev. l features 10 mhz spi compatible 1.8 to 6.0 volt operation hardware and software protection low power cmos technology spi modes (0,0 & 1,1)* commercial, industrial, automotive and extended temperature ranges 1,000,000 program/erase cycles 100 year data retention self-timed write cycle 8-pin dip/soic, 8-pin tssop and 8-pin msop 16/32-byte page write buffer write protection ?protect first page, last page, any 1/4 array or lower 1/2 array pin configuration dip package (p, l, gl) pin functions pin name function so serial data output sck serial clock wp write protect v cc +1.8v to +6.0v power supply v ss ground cs chip select si serial data input hold suspends serial input nc no connect block diagram description the cat25c11/03/05/09/17 is a 1k/2k/4k/8k/16k-bit spi serial cmos eeprom internally organized as 128x8/256x8/512x8/1024x8/2048x8 bits. catalysts advanced cmos technology substantially reduces device power requirements. the cat25c11/03/05 features a 16-byte page write buffer. the 25c09/17 features a 32-byte page write buffer.the device operates via the spi bus serial interface and is enabled though a chip select ( cs ). in addition to the chip select, the clock input (sck), data in (si) and data out (so) are required to access the device. the hold pin may be used to suspend any serial communication without resetting the serial sequence. the cat25c11/03/05/09/17 is designed with software and hardware write protection features including block write protection. the device is available in 8-pin dip, 8-pin soic, 8/14-pin tssop and 8-pin msop packages. soic package (s, v, gv) v ss so wp v cc hold sck si 1 2 3 4 8 7 6 5 cs so wp cs v cc sck si 1 2 3 4 8 7 6 5 v ss hold tssop package (u, y, gy) 8 7 6 5 v cc wp sck cs v ss 1 2 3 4 so hol d si so wp cs v cc sck si 1 2 3 4 8 7 6 5 v ss hold msop package (r, z, gz)* *cat25c11/03 only sense amps shift registers spi control logic word address buffers i/o control eeprom array column decoders xdec high voltage/ timing control so status register block protect logic control logic data i n storage si cs wp hold sck * other spi modes available on request. discontinued parts
2 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice d.c. operating characteristics v cc = +1.8v to +6.0v, unless otherwise specified. limits symbol parameter min. typ. max. units test conditions i cc1 power supply current 5 ma v cc = 5v @ 5mhz (operating write) so=open; cs=vss i cc2 power supply current 3 ma v cc = 5.5v (operating read) f clk = 5mhz i sb (6) power supply current 1 a cs = v cc (standby) v in = v ss or v cc i li input leakage current 2 a i lo output leakage current 3 av out = 0v to v cc , cs = 0v v il (5) input low voltage -1 v cc x 0.3 v v ih (5) input high voltage v cc x 0.7 v cc + 0.5 v v ol1 output low voltage 0.4 v v oh1 output high voltage v cc - 0.8 v v ol2 output low voltage 0.2 v 1.8v v cc <2.7v v oh2 output high voltage v cc -0.2 v i ol = 150 a i oh = -100 a absolute maximum ratings* temperature under bias ................. C 55 c to +125 c storage temperature ....................... C 65 c to +150 c voltage on any pin with respect to v ss (1) .................. C 2.0v to +v cc +2.0v v cc with respect to v ss ................................ C 2.0v to +7.0v package power dissipation capability (ta = 25 c) ................................... 1.0w lead soldering temperature (10 secs) ............ 300 c output short circuit current (2) ........................ 100 ma *comment stresses above those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specifica- tion is not implied. exposure to any absolute maximum rating for extended periods may affect device perfor- mance and reliability. note: (1) the minimum dc input voltage is C 0.5v. during transitions, inputs may undershoot to C 2.0v for periods of less than 20 ns. maximum dc voltage on output pins is v cc +0.5v, which may overshoot to v cc +2.0v for periods of less than 20 ns. (2) output shorted for no more than one second. no more than one output shorted at a time. (3) these parameter are tested initially and after a design or process change that affects the parameter according to appropriat e aec-q100 and jedec test methods. (4) latch-up protection is provided for stresses up to 100 ma on address and data pins from C 1v to v cc +1v. (5) v ilmin and v ihmax are reference values only and are not tested. (6) maximum standby current (i sb ) = 10 a for the automotive and extended automotive temperature range. 2.7v v cc <5.5v i ol = 3.0ma i oh = -1.6ma reliability characteristics symbol parameter min. typ. max. units n end (3) endurance 1,000,000 cycles/byte t dr (3) data retention 100 years v zap (3) esd susceptibility 2000 volts i lth (3)(4) latch-up 100 ma discontinued parts
3 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice limits 1.8v-6.0v 2.5v-6.0v 4.5v-5.5v test symbol parameter min. max. min. max. min. max. units conditions t su data setup time 50 20 20 ns v ih = 2.4v t h data hold time 50 20 20 ns c l = 100pf t wh sck high time 250 75 40 ns v ol = 0.8v t wl sck low time 250 75 40 ns v oh = 2.0v f sck clock frequency dc 1 dc 5 dc 10 mhz t lz hold to output low z 50 50 50 ns t ri (1) input rise time 2 2 2 s t fi (1) input fall time 2 2 2 s t hd hold setup time 100 40 40 ns t cd hold hold time 100 40 40 ns c l = 100pf t wc (3) write cycle time 10 5 5 ms t v output valid from clock low 250 75 40 ns t ho output hold time 0 0 0 ns t dis output disable time 250 75 75 ns t hz hold to output high z 150 50 50 ns t cs cs high time 500 100 100 ns t css cs setup time 500 100 100 ns t csh cs hold time 500 100 100 ns t wps wp setup time 150 50 50 ns t csh cs hold time 150 50 50 ns (1) this parameter is tested initially and after a design or process change that affects the parameter. (2) ac test conditions: input pulse voltages: 0.3v cc to 0.7v cc input rise and fall times: 10ns input and output reference voltages: 0.5v cc output load: current source iol max/ioh max; c l = 50pf (3) t wc is the time from the rising edge of cs after a valid write sequence to the end of the internal write cycle. a.c. characteristics c l = 50pf (note 2) pin capacitance (1) applicable over recommended operating range from t a =25 ? c, f=1.0 mhz, vcc=+5.0v (unless otherwise noted). symbol test conditions max. units conditions c out output capacitance (so) 8 pf v out =0v c in input capacitance ( cs , sck, si, wp , hold )6 pf v in =0v discontinued parts
4 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice functional description the cat25c11/03/05/09/17 supports the spi bus data transmission protocol. the synchronous serial periph- eral interface (spi) helps the cat25c11/03/05/09/17 to interface directly with many of today s popular microcontrollers. the cat25c11/03/05/09/17 contains an 8-bit instruction register. (the instruction set and the operation codes are detailed in the instruction set table) after the device is selected with cs going low, the first byte will be received. the part is accessed via the si pin, with data being clocked in on the rising edge of sck. the first byte contains one of the six op-codes that define instruction opcode operation wren 0000 0110 enable write operations wrdi 0000 0100 disable write operations rdsr 0000 0101 read status register wrsr 0000 0001 write status register read 0000 x011 (1) read data from memory write 0000 x010 (1) write data to memory instruction set the operation to be performed. pin description si: serial input si is the serial data input pin. this pin is used to input all opcodes, byte addresses, and data to be written to the 25c11/03/05/09/17.input data is latched on the rising edge of the serial clock for spi modes (0, 0 & 1, 1). so: serial output so is the serial data output pin. this pin is used to transfer data out of the 25c11/03/05/09/17. during a read cycle, data is shifted out on the falling edge of the serial clock for figure 1. sychronous data timing cs nc 1 2 3 4 14 13 12 11 nc nc nc 5 6 710 9 8 nc sck v ss si nc wp vcc hold so 15 16 nc nc note: dashed line= mode (1, 1) C C C C note: (1) x=0 for 25c11, 25c03, 25c09, 25c17. x=a8 for 25c05 (2) this parameter is tested initially and after a design or process change that affects the parameter. (3) t pur and t puw are the delays required from the time v cc is stable until the specified operation can be initiated. power-up timing (2)(3) symbol parameter max. units t pur power-up to read operation 1 ms t puw power-up to write operation 1 ms discontinued parts
5 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice spi modes (0,0 & 1,1). sck: serial clock sck is the serial clock pin. this pin is used to synchronize the communication between the microcontroller and the 25c11/03/05/09/17. opcodes, byte addresses, or data present on the si pin are latched on the rising edge of the sck. data on the so pin is updated on the falling edge of the sck for spi modes (0,0 & 1,1). cs cs cs cs cs : chip select cs is the chip select pin. cs low enables the cat25c11/ 03/05/09/17 and cs high disables the cat25c11/03/05/ 09/17. cs high takes the so output pin to high impedance 76543210 wpen 1 1 bp2 bp1 bp0 wel rdy status register bp2 bp1 bp0 0 0 0 non-protection 0 0 1 q1 protected 0 1 0 q2 protected 0 1 1 q3 protected 1 0 0 q4 protected 1 0 1 h1 protected 1 1 0 p0 protected 1 1 1 pn protected memory protection 25c11 25c03 25c05 25c09 25c17 q1 00-1f 00-3f 000-07f 000-0ff 000-1ff q2 20-3f 40-7f 080-0ff 100-1ff 200-3ff q3 40-5f 80-bf 100-17f 200-2ff 400-5ff q4 60-7f c0-ff 180-1ff 300-3ff 600-7ff h1 00-3f 00-7f 000-0ff 000-1ff 000-3ff p0 00-0f 00-0f 000-00f 000-01f 000-01f pn 70-7f f0-ff 1f0-1ff 3e0-3ff 7e0-7ff protected unprotected status wpen wp wp wp wp wp wel blocks blocks register 0 x 0 protected protected protected 0 x 1 protected writable writable 1 low 0 protected protected protected 1 low 1 protected writable protected x high 0 protected protected protected x high 1 protected writable writable write protect enable operation and forces the devices into a standby mode (unless an internal write operation is underway) the cat25c11/03/ 05/09/17 draws zero current in the standby mode. a high to low transition on cs is required prior to any sequence being initiated. a low to high transition on cs after a valid write sequence is what initiates an internal write cycle. wp wp wp wp wp : write protect wp is the write protect pin. the write protect pin will allow normal read/write operations when held high. when wp is tied low and the wpen bit in the status register is set to "1", all write operations to the status register are inhibited. wp going low while cs is still low will interrupt a write to the status register. if the internal write cycle as already been initiated, wp going low will have no effect on any write byte address device address significant bits address don't care bits # address clock pulse cat25c11 a6 - a0 a7 8 cat25c03 a7 - a0 8 cat25c05 a7 - a0 (a8 = x bit from opcode) 8 cat25c09 a9 - a0 a15 - a10 16 cat25c17 a10 - a0 a15 - a11 16 discontinued parts
6 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice figure 2. wren instruction timing figure 3. wrdi instruction timing operation to the status register. the wp pin function is blocked when the wpen bit is set to 0. figure 10 illustrates the wp timing sequence during a write operation. hold hold hold hold hold : hold hold is the hold pin. the hold pin is used to pause transmission to the cat25c11/03/05/09/17 while in the middle of a serial sequence without having to re-transmit entire sequence at a later time. to pause, hold must be brought low while sck is low. the so pin is in a high impedance state during the time the part is paused, and transitions on the si pins will be ignored. to resume communication, hold is brought high, while sck is low. hold should be held high any time this function is not being used. hold may be tied high directly to v cc or tied to v cc through a resistor. figure 9 illustrates hold timing sequence. status register the status register indicates the status of the device. the rdy (ready) bit indicates whether the cat25c11/ sk si cs so 00000 110 high impedance sk si cs so 00000 100 high impedance note: dashed line= mode (1, 1) C C C C note: dashed line= mode (1, 1) C C C C 03/05/09/17 is busy with a write operation. when set to 1 a write cycle is in progress and when set to 0 the device indicates it is ready. this bit is read only the wel (write enable) bit indicates the status of the write enable latch. when set to 1, the device is in a write enable state and when set to 0 the device is in a write disable state. the wel bit can only be set by the wren instruction and can be reset by the wrdi instruction. the bp0, bp1 and bp2 bits indicate which part of the memory array is currently protected. these bits are set by the user issuing the wrsr instruction. the user is allowed to protect from one page to as much as half the entire array. once the three protection bits are set the associated memory can be read but not written until the protection bits are reset. these bits are non volatile. the wpen (write protect enable) is an enable b it for the wp pin. the wp pin and wpen bit in the status register control the programmable hardware write protect fea- ture. hardware write protection is enabled when wp is low and wpen bit is set to high. the user cannot write to the status register, (including the block protect bits discontinued parts
7 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice figure 4. read instruction timing after the correct read instruction and address are sent, the data stored in the memory at the selected address is shifted out on the so pin. the data stored in the memory at the next address can be read sequentially by continuing to provide clock pulses. the internal address pointer is automatically incremented to the next higher address after each byte of data is shifted out. when the highest address is reached, the address counter rolls over to 0000h allowing the read cycle to be continued indefinitely. the read operation is terminated by pulling the cs high. read sequece is illustrated in figure 4. reading status register is illustrated in figure 5. to read the status register, rdsr instruction should be sent. the contents of the status register are shifted out on the so line. if a non-volatile write is in progress, the rdsr instruction returns a high on so. when the non-volatile write cycle is completed, the status register data is read out. write sequence the cat25c11/03/05/09/17 powers up in a write dis- able state. prior to any write instructions, the wren instruction must be sent to cat25c11/03/05/09/17. the device goes into write enable state by pulling the cs low and then clocking the wren instruction into cat25c11/03/05/09/17. the cs must be brought high sk si so 0000x*01 1 byte address* 012345678910 2021222324252627282930 7 6 5 4 3 2 1 0 *please check the byte address table. cs opcode data out msb high impedance ** a n a 0 *x = 0 for cat25c11, cat25c03, cat25c09 and cat25c17; x = a8 for cat25c05. note: dashed line= mode (1, 1) C C C C and the wpen bit) and the block protected sections in the memory array when the chip is hardware write protected. only the sections of the memory array that are not block protected can be written. hardware write protection is disabled when either wp pin is high or the wpen bit is zero. device operation write enable and disable the cat25c11/03/05/09/17 contains a write enable latch. this latch must be set before any write operation. the device powers up in a write disable state when v cc is applied. wren instruction will enable writes (set the latch) to the device. wrdi instruction will disable writes (reset the latch) to the device. disabling writes will protect the device against inadvertent writes. read sequence the part is selected by pulling cs low. the 8-bit read instruction is transmitted to the cat25c11/03/05/09/17, followed by the 16-bit address for 25c09/17 (only 10-bit addresses are used for 25c09, 11-bit addresses are used for 25c17. the rest of the bits are don't care bits) and 8-bit address for 25c11/03/05 (for the 25c05, bit 3 of the read data instruction contains address a8). discontinued parts
8 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice figure 6. write instruction timing sk si so 00 00 x*0 10 d7 d6 d5 d4 d3 d2 d1 d0 012345678 2122232425262728293031 cs opcode data in high impedance byte address* ** a n a 0 *please check the byte address table x = 0 for cat25c11, cat25c03, cat25c09 and cat25c17; x = a8 for cat25c05 note: dashed line= mode (1, 1) C CCC device. if the write operation is initiated immediately after the wren instruction without cs being brought high, the data will not be written to the array because the write up to 16 bytes of data to the cat25c11/03/05 and 32 bytes of data for 25c09/17. after each byte of data received, lower order address bits are internally incremented by one; the high order bits of address willremain constant.the only restriction is that the x (x=16 for 25c11/03/05 and x=32 for 25c09/17) bytes must reside on the same page. if the address counter reaches the end of the page and clock continues, the counter will roll over to the first address of the page and overwrite any data that may have been written. the cat25c11/03/05/09/17 is automatically returned to the write disable state at the completion of the write cycle. figure 8 illustrates the page write sequence. to write to the status register, the wrsr instruction should be sent. only bit 2, bit 3, bit 4 and bit 7 of the status register can be written using the write status register instruction. figure 7 illustrates the sequence of writing to status register. enable latch will not have been properly set. also, for a successful write operation the address of the memory location(s) to be programmed must be outside the pro- tected address field. byte write once the device is in a write enable state, the user may proceed with a write sequence by setting the cs low, issuing a write instruction via the si line, followed by the 16-bit address for 25c09/17. (only 10-bit addresses are used for 25c09, 11-bit addresses are used for 25c17. the rest of the bits are don't care bits) and 8-bit address for 25c11/03/05 (for the 25c05, bit 3 of the read data instruction contains address a8). programming will start after the cs is brought high. figure 6 illustrates byte write sequence. page write the cat25c11/03/05/09/17 features page write capa- bility. after the initial byte, the host may continue to write after the wren instruction to enable writes to thee figure 5. rdsr instruction timing 012345678 10 911121314 sck si data out msb high impedance opcode so 7 6 5 4 3 2 1 0 cs 00 0 00 1 01 note: dashed line= mode (1, 1) C C C C discontinued parts
9 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice figure 7. wrsr instruction timing design considerations the cat25c11/03/05/09/17 powers up in a write dis- able state and in a low power standby mode. a wren instruction must be issued to perform any writes to the device after power up. also,on power up cs should be brought low to enter a ready state and receive an instruction. after a successful byte/page write or status register write the cat25c11/03/05/09/17 goes into a write disable mode. cs must be set high after the proper number of clock cycles to start an internal write cycle. access to the array during an internal write cycle is ignored and programming is continued. on power up, so is in a high impedance. if an invalid op code is figure 8. page write instruction timing 012345678 10 911121314 sck si msb high impedance data in 15 so cs 7 6 5 4 3 2 10 00 0 000 0 1 opcode note: dashed line= mode (1, 1) C CCC note: dashed line= mode (1, 1) C C C C received, no data will be shifted into the cat25c11/03/ 05/09/17, and the serial output pin (so) will remain in a high impedance state until the falling edge of cs is detected again. when powering down, the supply should be taken down to 0v, so that the cat25c11/03/05/09/17 will be reset when power is ramped back up. if this is not possible, then, following a brown-out episode, the cat25c11/ 03/05/09/17 can be reset by refreshing the contents of the status register (see application note an10). sk si so 00 00 x*0 10 data byte 1 012345678 212223 24-31 32-39 data byte 2 data byte 3 data byte n cs opcode 7..1 0 24+(n-1)x8-1..24+(n-1)x8 24+nx8-1 data in high impedance byte address* *please check the byte address table. a n a 0 *x = 0 for cat25c11, cat25c03, cat25c09 and cat25c17; x = a8 for cat25c05 discontinued parts
10 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice figure 9. hold hold hold hold hold timing cs sck hold so t cd t hd t hd t cd t lz t hz high impedance note: dashed line= mode (1, 1) C C C C t csh cs sck wp wp t wps t wph figure 10. wp wp wp wp wp timing discontinued parts
11 cat25c11/03/05/09/17 doc. no. 1017, rev. l ? 2005 by catalyst semiconductor, inc. characteristics subject to change without notice notes: (1) the device used in the above example is a 25c17si-1.8te13 (soic, industrial temperature, 1.8 volt to 6 volt operating volta ge, tape & reel) (2) cat25c11 and cat25c03 only. ordering information prefix device # suffix 25c17 s i te13 product number 25c17:16k 25c09: 8k 25c05: 4k 25c03: 2k tape & reel operating voltage blank (v cc =2.5 to 6.0v) 1.8 (v cc =1.8 to 6.0v) -1.8 cat temperature range blank = commercial (0 c to +70 c) i = industrial (-40 c to +85 c) a = automotive (-40 c to +105 c) optional company id 25c11: 1k e = extended (-40 c to +125 c) package p: pdip r: msop 2 s: soic u: tssop l: pdip (lead free, halogen free) v: soic, jedec (lead free, halogen free) y: tssop (lead free, halogen free) z: msop 2 (lead free, halogen free) gl: pdip (lead-free, halogen-free, nipdau lead plating) gv: soic, jedec (lead-free, halogen-free, nipdau lead plating) gy: tssop (lead-free, halogen-free, nipdau lead plating) gz: msop 2 (lead-free, halogen-free, nipdau lead plating) discontinued parts
catalyst semiconductor, inc. corporate headquarters 1250 borregas avenue sunnyvale, ca 94089 phone: 408.542.1000 fax: 408.542.1200 www.caalyst-semiconductor.com copyrights, trademarks and patents trademarks and registered trademarks of catalyst semiconductor include each of the following: dpp ae 2 minipot catalyst semiconductor has been issued u.s. and foreign patents and has patent applications pending that protect its products. for a complete list of patents issued to catalyst semiconductor contact the companys corporate office at 408.542.1000. catalyst semiconductor makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any particular purpose, nor that the use of its products will not infringe its intellectual property rights or the rights of third parties with respect to any particular use or application and specifically disclaims any and all liability aris ing out of any such use or application, including but not limited to, consequential or incidental damages. catalyst semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgica l implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the catalyst semic onductor product could create a situation where personal injury or death may occur. catalyst semiconductor reserves the right to make changes to or discontinue any product or service described herein without not ice. products with data sheets labeled "advance information" or "preliminary" and other products described herein may not be in production or offered for sale . catalyst semiconductor advises customers to obtain the current version of the relevant product information before placing order s. circuit diagrams illustrate typical semiconductor applications and may not be complete. publication #: 1017 revison: l issue date: 09/22/05 revision history date rev. reason 08/03/2004 j updated features updated dc operating characteristics table & notes 07/08/2005 k update features update pin configuration update reliability characteristics update ordering information 09/22/2005 l update pin configuration discontinued parts

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