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1 features ? fast read access time - 45 ns ? low power cmos operation C 100 a max. standby C 30 ma max. active at 5 mhz ? jedec standard packages C 44-lead plcc C 40-lead vsop (10mm x 14mm) ? 5v 10% power supply ? high reliability cmos technology C 2000v esd protection C 200 ma latchup immunity ? rapid? programming algorithm - 50 s/word (typical) ? cmos and ttl compatible inputs and outputs ? integrated product identification code ? commercial and industrial temperature ranges description the at27c516 is a low-power, high performance 524,288-bit one-time programmable read only memory (otp eprom) organized 32k by 16 bits. it requires only one 5v power supply in normal read mode operation. any word can be accessed in less than 45 ns, eliminating the need for speed reducing wait states. the by-16 organization make this part ideal for high-performance 16- and 32-bit microprocessor systems. in read mode, the at27c516 typically consumes 15 ma. standby mode supply cur- rent is typically less than 10 m a. 512k (32k x 16) otp eprom at27c516 rev. 0362cC10/98 note: both gnd pins must be connected. pin configurations pin name function a0 - a14 addresses o0 - o15 outputs ce chip enable oe output enable pgm program strobe nc no connect vsop top view type 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 a9 a10 a11 a12 a13 a14 nc nc pgm vcc vpp ce o15 o14 o13 o12 o11 o10 o9 o8 gnd a8 a7 a6 a5 a4 a3 a2 a1 a0 oe o0 o1 o2 o3 o4 o5 o6 o7 gnd plcc top view note: plcc package pins 1 and 23 are dont connect. 7 8 9 10 11 12 13 14 15 16 17 39 38 37 36 35 34 33 32 31 30 29 o12 o11 o10 o9 o8 gnd nc o7 o6 o5 o4 a13 a12 a11 a10 a9 gnd nc a8 a7 a6 a5 6 5 4 3 2 1 44 43 42 41 40 18 19 20 21 22 23 24 25 26 27 28 o3 o2 o1 o0 oe nc a0 a1 a2 a3 a4 o13 o14 o15 ce vpp nc vcc pgm nc nc a14 (continued)
at27c516 2 the at27c516 is available in industry standard jedec- approved one-time programmable (otp) plastic plcc and vsop packages. the device features two-line control (ce , oe ) to eliminate bus contention in high-speed systems. with 32k word storage capability, the at27c516 allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media. atmels 27c516 have additional features to ensure high quality and efficient production use. the rapid? program- ming algorithm reduces the time required to program the part and guarantees reliable programming. programming time is typically only 50 m s/word. the integrated product identification code electronically identifies the device and manufacturer. this feature is used by industry standard programming equipment to select the proper programming algorithms and voltages. system considerations switching between active and standby conditions via the chip enable pin may produce transient voltage excursions. unless accommodated by the system design, these tran- sients may exceed data sheet limits, resulting in device non-conformance. at a minimum, a 0.1 m f high frequency, low inherent inductance, ceramic capacitor should be uti- lized for each device. this capacitor should be connected between the v cc and ground terminals of the device, as close to the device as possible. additionally, to stabilize the supply voltage level on printed circuit boards with large eprom arrays, a 4.7 m f bulk electrolytic capacitor should be utilized, again connected between the v cc and ground terminals. this capacitor should be positioned as close as possible to the point where the power supply is connected to the array. block diagram
at27c516 3 note: 1. minimum voltage is -0.6v dc which may undershoot to -2.0v for pulses of less than 20 ns. maximum output pin voltage is v cc + 0.75v dc which may overshoot to +7.0 volts for pulses of less than 20 ns. notes: 1. x can be v il or v ih . 2. refer to programming characteristics. 3. v h = 12.0 0.5v. 4. two identifier bytes may be selected. all ai inputs are held low (v il ), except a9 which is set to v h and a0 which is toggled low (v il ) to select the manufacturers identification byte and high (v ih ) to select the device code byte. 5. standby v cc current (i sb ) is specified with v pp = v cc . v cc > v pp will cause a slight increase in i sb . absolute maximum ratings* temperature under bias................................ -55c to +125c *notice: stresses beyond those listed under absolute maximum ratings may cause permanent dam- age to the device. this is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability storage temperature ..................................... -65c to +150c voltage on any pin with respect to ground .........................................-2.0v to +7.0v (1) voltage on a9 with respect to ground ......................................-2.0v to +14.0v (1) v pp supply voltage with respect to ground .......................................-2.0v to +14.0v (1) operating modes mode \ pin ce oe pgm ai v pp outputs read v il v il x (1) ai x d out output disable x v ih xxxhigh z standby v ih xx x x (5) high z rapid program (2) v il v ih v il ai v pp d in pgm verify v il v il v ih ai v pp d out pgm inhibit v ih xx x v pp high z product identification (4) v il v il x a9 = v h (3) a0 = v ih or v il a1 - a14 = v il v cc identification code
at27c516 4 notes: 1. v cc must be applied simultaneously with or before v pp , and removed simultaneously with or after v pp . 2. v pp may be connected directly to v cc , except during programming. the supply current would then be the sum of i cc and i pp . dc and ac operating conditions for read operation at27c516 -45 -55 -70 -85 -10 operating temperature (case) com. 0c - 70c 0c - 70c 0c - 70c 0c - 70c 0c - 70c ind. -40c - 85c -40c - 85c -40c - 85c -40c - 85c -40c - 85c v cc power supply 5v 10% 5v 10% 5v 10% 5v 10% 5v 10% dc and operating characteristics for read operation symbol parameter condition min max units i li input load current v in = 0v to v cc 1 m a i lo output leakage current v out = 0v to v cc 5 m a i pp1 (2) v pp (1) read/standby current v pp = v cc 10 m a i sb v cc (1) standby current i sb1 (cmos), ce = v cc 0.3v 100 m a i sb2 (ttl), ce = 2.0 to v cc + 0.5v 1 ma i cc v cc active current f = 5 mhz, i out = 0 ma, ce = v il 30 ma v il input low voltage -0.6 0.8 v v ih input high voltage 2.0 v cc + 0.5 v v ol output low voltage i ol = 2.1 ma 0.4 v v oh output high voltage i oh = -400 m a2.4v
at27c516 5 ac waveforms for read operation (1) notes: 1. timing measurement reference level is 1.5v for -45 and -55 devices. input ac drive levels are v il = 0.0v and v ih = 3.0v. timing measurement reference levels for all other speed grades are v ol = 0.8v and v oh = 2.0v. input ac drive levels are v il = 0.45v and v ih = 2.4v. 2. oe may be delayed up to t ce - t oe after the falling edge of ce without impact on t ce . 3. oe may be delayed up to t acc - t oe after the address is valid without impact on t acc . 4. this parameter is only sampled and is not 100% tested. 5. output float is defined as the point when data is no longer driven. ac characteristics for read operation symbol parameter condition at27c516 units -45 -55 -70 -85 -10 min max min max min max min max min max t acc (3) address to output delay ce = oe = v il 45 55 70 85 100 ns t ce (2) ce to output delay oe = v il 45 55 70 85 100 ns t oe (2)(3) oe to output delay ce = v il 20 25 25 30 30 ns t df (4)(5) oe or ce high to output float, whichever occurred first 20 25 25 30 30 ns t oh output hold from address, ce or oe , whichever occurred first 77700ns
at27c516 6 input test waveforms and measurement levels output test load note: 1. typical values for nominal supply voltage. this parameter is only sampled and is not 100% tested. t r , t f < 5 ns (10% to 90%) for -45, -55, and -70 devices only: t r , t f < 20 ns (10% to 90%) for -85 and -10 devices only: note: c l = 100 pf including jig capacitance, except -45, -55, and -70 devices, where c l =30pf. pin capacitance f = 1 mhz, t = 25c (1) symbol typ max units conditions c in 410pfv in = 0v c out 812pfv out = 0v
at27c516 7 programming waveforms (1) notes: 1. the input timing reference is 0.8v for v il and 2.0v for v ih . 2. t oe and t dfp are characteristics of the device but must be accommodated by the programmer. 3. when programming the at27c516 at 0.1 f capacitor is required across v pp and ground to suppress spurious voltage transients. dc programming characteristics t a = 25 5c, v cc = 6.5 0.25v, v pp = 13.0 0.25v symbol parameter test conditions limits units min max i li input load current v in = v il , v ih 10 a v il input low level -0.6 0.8 v v ih input high level 2.0 v cc + 0.1 v v ol output low voltage i ol = 2.1 ma 0.4 v v oh output high voltage i oh = -400 a 2.4 v i cc2 v cc supply current (program and verify) 50 ma i pp2 v pp supply current ce = pgm = v il 30 ma v id a9 product identification voltage 11.5 12.5 v
at27c516 8 notes: 1. v cc must be applied simultaneously or before v pp and removed simultaneously or after v pp . 2. this parameter is only sampled and is not 100% tested. output float is defined as the point where data is no longer driven see timing diagram. 3. program pulse width tolerance is 50 m sec 5%. ac programming characteristics t a = 25 5c, v cc = 6.5 0.25v, v pp = 13.0 0.25v symbol parameter test conditions (1) limit units min max t as address setup time input rise and fall times: (10% to 90%) 20 ns input pulse levels: 0.45v to 2.4v input timing reference level: 0.8v to 2.0v output timing reference level: 0.8v to 2.0v 2s t ces ce setup time 2 s t oes oe setup time 2 s t ds data setup time 2 s t ah address hold time 0 s t dh data hold time 2 s t dfp oe high to output float delay (2) 0 130 ns t vps v pp setup time 2 s t vcs v cc setup time 2 s t pw pgm program pulse width (3) 47.5 52.5 s t oe data valid from oe 150 ns t prt v pp pulse rise time during programming 50 ns atmels 27c516 integrated product identification code codes pins hex data a0 o15-o8 o7 o6 o5 o4 o3 o2 o1 o0 manufacturer 0 0 00011110 001e device type 1 0 11110010 00f2
at27c516 9 rapid programming algorithm a 50 m s pgm pulse width is used to program. the address is set to the first location. v cc is raised to 6.5v and v pp is raised to 13.0v. each address is first programmed with one 50 m s pgm pulse without verification. then a verification / reprogramming loop is executed for each address. in the event a word fails to pass verification, up to 10 successive 50 m s pulses are applied with a verification after each pulse. if the word fails to verify after 10 pulses have been applied, the part is considered failed. after the word verifies properly, the next address is selected until all have been checked. v pp is then lowered to 5.0v and v cc to 5.0v. all words are read again and compared with the original data to determine if the device passes or fails.
at27c516 10 ordering information t acc (ns) i cc (ma) ordering code package operation range active standby 45 30 0.1 at27c516-45jc at27c516-45vc 44j 40v commercial (0 c to 70 c) 30 0.1 at27c516-45ji at27c516-45vi 44j 40v industrial (-40 c to 85 c) 55 30 0.1 at27c516-55jc at27c516-55vc 44j 40v commercial (0 c to 70 c) 30 0.1 at27c516-55ji at27c516-55vi 44j 40v industrial (-40 c to 85 c) 70 30 0.1 at27c516-70jc at27c516-70vc 44j 40v commercial (0 c to 70 c) 30 0.1 at27c516-70ji at27c516-70vi 44j 40v industrial (-40 c to 85 c) 85 30 0.1 at27c516-85jc at27c516-85vc 44j 40v commercial (0 c to 70 c) 30 0.1 at27c516-85ji at27c516-85vi 44j 40v industrial (-40 c to 85 c) 100 30 0.1 at27c516-10jc at27c516-10vc 44j 40v commercial (0 c to 70 c) 30 0.1 at27c516-10ji at27c516-10vi 44j 40v industrial (-40 c to 85 c) package type 44j 44-lead, plastic j-leaded chip carrier (plcc) 40v 40-lead, plastic thin small outline package (vsop) (10mm x 14mm)
at27c516 11 packaging information .045(1.14) x 45 pin no. 1 identify .045(1.14) x 30 - 45 .012(.305) .008(.203) .021(.533) .013(.330) .630(16.0) .590(15.0) .043(1.09) .020(.508) .120(3.05) .090(2.29) .180(4.57) .165(4.19) .500(12.7) ref sq .032(.813) .026(.660) .050(1.27) typ .022(.559) x 45 max (3x) .656(16.7) .650(16.5) .695(17.7) .685(17.4) sq sq 44j , 44-lead, plastic j-leaded chip carrier (plcc) dimensions in inches and (millimeters) jedec standard ms-018 ac 40v , 40-lead, plastic thin small outline package (tsop) dimensions in millimeters and (inches) jedec outline mo-142 ca
? atmel corporation 1998. atmel corporation makes no warranty for the use of its products, other than those expressly contained in the companys standard war- ranty which is detailed in atmels terms and conditions located on the companys website. the company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any tim e without notice, and does not make any commitment to update the information contained herein. no licenses to patents or other intellectu al prop- erty of atmel are granted by the company in connection with the sale of atmel products, expressly or by implication. atmels pr oducts are not authorized for use as critical components in life support devices or systems. marks bearing ? and/or ? are registered trademarks and trademarks of atmel corporation. terms and product names in this document may be trademarks of others. atmel headquarters atmel operations corporate headquarters 2325 orchard parkway san jose, ca 95131 tel (408) 441-0311 fax (408) 487-2600 europe atmel u.k., ltd. coliseum business centre riverside way camberley, surrey gu15 3yl england tel (44) 1276-686677 fax (44) 1276-686697 asia atmel asia, ltd. room 1219 chinachem golden plaza 77 mody road tsimshatsui east kowloon, hong kong tel (852) 27219778 fax (852) 27221369 japan atmel japan k.k. tonetsu shinkawa bldg., 9f 1-24-8 shinkawa chuo-ku, tokyo 104-0033 japan tel (81) 3-3523-3551 fax (81) 3-3523-7581 atmel colorado springs 1150 e. cheyenne mtn. blvd. colorado springs, co 80906 tel (719) 576-3300 fax (719) 540-1759 atmel rousset zone industrielle 13106 rousset cedex, france tel (33) 4 42 53 60 00 fax (33) 4 42 53 60 01 fax-on-demand north america: 1-(800) 292-8635 international: 1-(408) 441-0732 e-mail literature@atmel.com web site http://www.atmel.com bbs 1-(408) 436-4309 printed on recycled paper. 0362cC10/98/xm

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