62C256

IS62C256 32K x 8 LOW POWER CMOS STATIC RAM FEATURES Access time: 45, 70 ns Low active power: 200 mW (typical) Low standby power — 250 µW (typical) CMOS standby — 28 mW (typical) TTL standby Fully static operation: no clock or refresh required TTL compatible inputs and outputs Single 5V power supply ISSI ® DESCRIPTION The ISSI IS62C256 is a low power, 32,768 word by 8-bit CMOS static RAM. It is fabricated using ISSI's highperformance, low power CMOS technology. When CS is HIGH (deselected), the device assumes a standby mode at which the power dissipation can be reduced down to 250 µW (typical) at CMOS input levels. Easy memory expansion is provided by using an active LOW Chip Select (CS) input and an active LOW Output Enable (OE) input. The active LOW Write Enable (WE) controls both writing and reading of the memory. The IS62C256 is pin compatible with other 32K x 8 SRAMs in plastic SOP or TSOP (Type I) package. FUNCTIONAL BLOCK DIAGRAM A0-A14 DECODER 32K X 8 MEMORY ARRAY VCC GND I/O DATA CIRCUIT I/O0-I/O7 COLUMN I/O CS OE WE CONTROL CIRCUIT ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 1999, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. — 1-800-379-4774 SR072-1E 05/12/99 1 IS62C256 PIN CONFIGURATION 28-Pin SOP A14 A12 A7 A6 A5 A4 A3 A2 ...