AS7C256A

September 2004 AS7C256A ® 5V 32K X 8 CMOS SRAM (Common I/O) Features Pin compatible with AS7C256 Industrial and commercial temperature options Organization: 32,768 words × 8 bits High speed - 10/12/15/20 ns address access time - 5, 6, 7, 8 ns output enable access time Very low power consumption: ACTIVE - 412.5 mW max @ 10 ns Very low power consumption: STANDBY - 11 mW max CMOS I/O Easy memory expansion with CE and OE inputs TTL-compatible, three-state I/O 28-pin JEDEC standard packages - 300 mil SOJ - 8 × 13.4 mm TSOP 1 ESD protection ≥ 2000 volts Latch-up current ≥ 200 mA 2.0V Data retention Row decoder Sense amp AS7C256A Logic block diagram VCC GND A0 A1 A2 A3 A4 A5 A6 A7 Input buffer 256 X 128 X 8 Array (262,144) Column decoder AAAAAAA 8 9 10 11 12 13 14 Control circuit Pin arrangement 28-pin TSOP 1 (8×13.4 mm) 28-pin SOJ (300 mil) I/O7 I/O0 WE OE CE A14 OE 1 28 A10 A12 A11 2 A9 3 A8 4 27 26 25 CE I/O7 I/O6 ...