27C020

AT27C020 Features Fast Read Access Time - 55 ns Low Power CMOS Operation – 100 µA max. Standby – 25 mA max. Active at 5 MHz JEDEC Standard Packages – 32-Lead 600-mil PDIP – 32-Lead PLCC – 32-Lead TSOP 5V ± 10% Supply High-Reliability CMOS Technology – 2,000V ESD Protection – 200 mA Latchup Immunity Rapid™ Programming Algorithm - 100 µs/byte (typical) CMOS and TTL Compatible Inputs and Outputs Integrated Product Identification Code Commercial and Industrial Temperature Ranges 2-Megabit (256K x 8) OTP EPROM AT27C020 Description The AT27C020 is a low-power, high performance 2,097,152-bit one-time programmable read only memory (OTP EPROM) organized as 256K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 55 ns, eliminating the need for speed reducing WAIT states on high performance microprocessor systems. In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current is typically less than 10 µA. PLCC Top View Pin Name A0 - A17 O0 - O7 CE OE PGM Function Addresses Outputs Chip Enable Output Enable Program Strobe A7 A6 A5 A4 A3 A2 A1 A0 O0 A12 A15 A16 VPP VCC PGM A17 Pin Configurations PDIP Top View VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC PGM A17 A14 A13 A8 A9 A11 OE A10 CE 07 06 05 04 03 A11 A9 A8 A13 A14 A17 PGM VCC VPP A16 A15 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 ...