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| PY264 8K X 8 REPROGRAMMABLE PROM FEATURES EPROM Technology for reprogramming High Speed - 35/45/55 ns (Commercial) - 35/45/55 ns (Military) Low Power Operation: - 660 mW Commercial - 770 mW Military Single 5V10% Power Supply Windowed devices for reprogramming Fully TTL Compatible Inputs and Outputs Standard Pinout (JEDEC Approved): - 24-Pin 600 mil Windowed CERDIP - 24-Pin 600 mil Non-Windowed Plastic DIP DESCRIPTION The PY264 is an 8Kx8 CMOS PROM. The device is available in windowed packages which when exposed to UV light, the memory content in the PROM is erased and can be reprogrammed. EPROM technology is used in the memory cells for programming. The EPROM requires a 12.5V for programming. Devices are tested to insure that performance of the device meets the DC and AC specification limits after customer programming. To perform a read operation from the device, CS is LOW. The memory contents in the address established by the Address pins (A0 to A12) will become available on the outputs (O0 to O7). The PY264 is available in 24-pin 600 mil Ceramic DIPs (Windowed) and Plastic DIPs (Non-Windowed). FUNCTIONAL BLOCK DIAGRAM PIN CONFIGURATION DIP (P8, WD2) Note: Window on WD2 package only Document # EPROM102 REV OR 1 Revised July 2007 PY264 MAXIMUM RATINGS(1) Symbol VCC Parameter Power Supply Pin with Respect to GND Terminal Voltage with Respect to GND (up to 7.0V) Program Voltage Value -0.5 to +7 -0.5 to VCC +0.5 13 Unit V Symbol TA TBIAS V V TSTG PT IOUT Parameter Operating Temperature Temperature Under Bias Storage Temperature Power Dissipation DC Output Current Value -55 to +125 -55 to +125 -65 to +150 1.0 50 Unit C C C W mA VTERM VPP RECOMMENDED OPERATING CONDITIONS Grade(2) Commercial Military Ambient Temp 0C to 70C -55C to +125C Gnd 0V 0V Vcc 5.0V 10% 5.0V 10% CAPACITANCES(4) (VCC = 5.0V, TA = 25C, f = 1.0MHz) Symbol CIN COUT Parameter Input Capacitance Conditions Typ. Unit VIN = 0V 10 10 pF pF Output Capacitance VOUT= 0V DC ELECTRICAL CHARACTERISTICS Over recommended operating temperature and supply voltage(2) Symbol VIH VIL VHC VLC VOL VOH ILI ILO VPP IPP VIHP VILP Parameter Input High Voltage Input Low Voltage CMOS Input High Voltage CMOS Input Low Voltage Output Low Voltage (TTL Load) Output High Voltage (TTL Load) Input Leakage Current Output Leakage Current Programming Supply Voltage Programming Supply Current Input HIGH Programming Voltage Input LOW Programming Voltage 4.75 0.4 IOL = +16 mA, VCC = Min. IOH = -4 mA, VCC = Min. VCC = Max. VIN = GND to VCC VCC = Max., CE = VIH, VOUT = GND to VCC COM MIL Test Conditions PY264 Min Max 2.0 -0.5 (3) Unit V V V V V V VCC 0.8 VCC +0.5 0.2 0.4 VCC -0.2 -0.5(3) 2.4 -10 -10 -40 12 +10 +10 +40 13 50 A A A V mA V V POWER DISSIPATION CHARACTERISTICS VS. SPEED Symbol ICC Parameter Dynamic Operating Current* Temperature Range Commercial Military -35 100 120 -45 100 120 -55 100 120 Unit mA mA Document # EPROM102 REV OR Page 2 of 8 PY264 AC ELECTRICAL CHARACTERISTICS--READ CYCLE (VCC = 5V 10%, All Temperature Ranges)(2) Symbol t AA t HZCS1 t ACS1 t HZCS2 t ACS2 t PU t PD Parameter Address to Output Valid Chip Select Inactive to High Z Chip Select Active to Output Valid Chip Select Inactive to High Z Chip Select Active to Output Valid Chip Select Active to Power-Up Chip Slect Inactive to Power-Down Min -35 Max 35 20 20 35 35 Min -45 Max 45 30 30 45 45 Min -55 Max 55 35 35 55 55 Unit ns ns ns ns ns ns 0 35 0 45 0 55 ns TIMING WAVEFORM OF READ CYCLE Notes: 1. Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to MAXIMUM rating conditions for extended periods may affect reliability. 2. Extended temperature operation guaranteed with 400 linear feet per minute of air flow. 3. Transient inputs with VIL and IIL not more negative than -3.0V and -100mA, respectively, are permissible for pulse widths up to 20 ns. 4. This parameter is sampled and not 100% tested. Document # EPROM102 REV OR Page 3 of 8 PY264 DEVICE ERASURE If the device is subjected to wavelengths of light below 4000 Angstroms, device erasure will commence. It is therefore recommended to use an opaque label over the window in the event the device will be exposed to lighting for a long time. The UV dose for erasure requires a wavelength of 2,537 Angstroms for a minimum dose of 25 Wsec/cm2. If using a UV lamp of 12 mW/cm2, the exposure time is estimated to be 35 minutes. Devices should be positioned within 1 inch of the lamp during the erasure process. Permanent damage can occur to the devices if exposed to UV light for an extended period of time. READ MODE Reading the addressed content is the normal operating mode for a programmed device. Signals are at normal TTL levels. Addressing is applied to the 13 address pins and CS is LOW. Under these conditions, the addressed location contents are presented to the output pins. MODE SELECTION Pin Function Mode Read Output Disable Program Program Inhibit Program Verify Blank Check Read or Output Disable Program A12 NA A12 A12 VILP VILP VILP VILP A11 Vpp A11 A11 Vpp Vpp Vpp Vpp A10 LATCH A 10 A 10 VILP VILP VILP VILP A9 P GM A9 A9 VILP VIHP VIHP VIHP A8 V FY A8 A8 VIHP VIHP VILP VILP CS CS VIL V IH VILP VILP VILP VILP O7-O0 D7-D0 O7-O0 High Z D7-D0 High Z O7-O0 O7-O0 PROGRAMMING PINOUTS Document # EPROM102 REV OR Page 4 of 8 PY264 AC TEST CONDITIONS Input Pulse Levels Input Rise and Fall Times Input Timing Reference Level Output Timing Reference Level Output Load GND to 3.0V 3ns 1.5V 1.5V See Figures 1 and 2 Figure 1. Output Load * including scope and test fixture. Note: Because of the ultra-high speed of the PY264, care must be taken when testing this device; an inadequate setup can cause a normal functioning part to be rejected as faulty. Long high-inductance leads that cause Figure 2. Thevenin Equivalent supply bounce must be avoided by bringing the VCC and ground planes directly up to the contactor fingers. A 0.01 F high frequency capacitor is also required between VCC and ground. Document # EPROM102 REV OR Page 5 of 8 PY264 ORDERING INFORMATION SELECTION GUIDE The PY264 is available in the following temperature, speed and package options. Temperature Range Commercial Military Temperature Military Processed* Package Plastic DIP Windowed CERDIP Windowed CERDIP Windowed CERDIP 35 -35PC N/A N/A N/A 45 N/A -45WC -45WM -45WMB 55 N/A -55WC -55WM -55WMB * Military temperature range with MIL-STD-883, Class B processing. N/A = Not Available Document # EPROM102 REV OR Page 6 of 8 PY264 Pkg # # Pins Symbol A b b2 C D E eA e L Q S1 WD2 24 (600 mil) Min Max 0.175 0.225 0.015 0.020 0.045 0.065 0.009 0.012 1.280 0.505 0.550 0.600 BSC 0.100 BSC 0.125 0.200 0.015 0.060 0.005 0 15 0.280 CERAMIC DUAL IN-LINE PACKAGE (WINDOWED) WD Pkg # # Pins Symbol A A1 b b2 C D E1 E e eB L P8 24 (600 mil) Min Max 0.155 0.200 0.015 0.060 0.015 0.020 0.055 0.065 0.009 0.012 1.230 1.260 0.530 0.550 0.570 0.625 0.100 BSC 0.610 0.685 0.115 0.160 0 15 PLASTIC DUAL IN-LINE PACKAGE (NON-WINDOWED) Document # EPROM102 REV OR Page 7 of 8 PY264 REVISIONS DOCUMENT NUMBER: DOCUMENT TITLE: REV. OR ISSUE DATE Jul-2007 EPROM102 PY264 8K x 8 REPROGRAMMABLE PROM ORIG. OF CHANGE JDB DESCRIPTION OF CHANGE New Data Sheet Document # EPROM102 REV OR Page 8 of 8 |
Price & Availability of PY264-35PC
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