A625308A Datasheet | AMIC Technology

Features n Power Supply Range: 4.5V to 5.5V n Access times: 70 ns A625308A-S series: Operating: Standby: A625308A-SI/SU series: Operating: Standby: n Extended operating temperature range: 0°C to 70°C for -S series, -25°C to 85°C for -SI series, -40°C to 85°C for -SU series. n Full static operation, no clock or refreshing required n All inputs and outputs are directly TTL-patible n mon I/O using three-state output n Data retention voltage: 2.0V (min.) n Available in 28-pin, DIP/SOP and TSOP 32K X 8 BIT CMOS SRAM 35m A (max.) 10µA (max.) 35m A (max.) 15µA (max.) General Description The A625308A is a low operating current 262,144-bit static random access memory organized as 32,768 words by 8 bits and operates on a voltage from 4.5V to 5.5V. Inputs and three-state outputs are TTL patible and allow for direct interfacing with mon system bus structures. Minimum standby power is drawn by this device when CE is at a high level, independent of the other input levels. Data retention is guaranteed at a power supply voltage as low as 2.0V. Pin Configurations n DIP / SOP n TSOP A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND 1 2 3 4 28 27 26 25 VCC WE A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 5 6 7 8 9 10 11 12 13 14 24 23 22 21 20 19 18 17 16 15 PRELIMINARY (July, 2002, Version 0.2) ~ OE A11 A9 A8 A13 WE VCC A14 A12 A7 A6 A5 A4 A3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ~ A625308AV 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A10 CE I/O7 I/O6 I/O5 I/O4 I/O3 VSS I/O2 I/O1 I/O0 A0 A1 A2 A625308A(M) AMIC Technology, Inc. A625308A Series Block Diagram A0 VCC GND A12 A13 A14 ROW DECODER 512 X 512 MEMORY ARRAY I/O0 INPUT DATA CIRCUIT COLUMN I/O I/O7 CE OE WE CONTROL CIRCUIT Pin Descriptions - DIP / SOP Pin No. 1-10, 21, 23-26 11-13, 15-19 20 22 27 28 14 Symbol A0 - A14 I/O0 - I/O7 CE OE WE VCC GND Description Address Input Data Input/Output Chip Enable Output Enable Write Enable Power Supply Ground Pin...