IS62C256-70U 32Kx8 High-Speed SRAM 70ns Access Time Low Power CMOS 5V Operation

Product Specification

IS62C256-70U 32Kx8 High-Speed SRAM 70ns Access Time Low Power CMOS 5V Operation Industrial Temp Range TTL Compatible Reliable Data Retention Easy-to-Use 28-Pin Package

FEATURES

• Access time: 45, 70 ns

• Low active power: 200 mW (typical)

• Low standby power

  — 250 mW (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

Applications

Industrial Control Systems

Used in PLCs (Programmable Logic Controllers), motor control, and sensor data buffering, benefiting from its industrial temperature range (-40°C to +85°C) and stable performance.

Embedded Systems

Expands memory in microcontroller systems (e.g., 8051, PIC, ARM) for temporary data storage or code execution, ideal for low-power CMOS designs.

Communication Equipment

Used in routers, switches, and other networking devices for cache storage, supporting high-speed (70ns) data access to meet real-time processing demands.

Medical Electronics

Suitable for portable medical monitors and diagnostic devices, relying on its reliable data retention and low power consumption.

Automotive Electronics

Applied in vehicle control systems (e.g., ECUs), dashboards, and navigation systems, compatible with wide temperature ranges and 5V voltage standards.

Consumer Electronics

Such as printers, POS terminals, and gaming consoles, where fast read/write and low-power SRAM are required.

Data Acquisition Systems

Temporary storage for high-speed ADC/DAC data, leveraging its 32K×8 capacity and TTL-compatible interface for efficient buffering.

Vintage Computer/Game Console Repair & Upgrades

Compatible with legacy 5V systems, commonly used as SRAM replacements in retro hardware (e.g., 80s/90s computers, arcade boards).

DESCRIPTION

The ISSI IS62C256 is a low power, 32,768 word by 8-bit CMOS static RAM. It is fabricated using ISSI's high performance, 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 mW (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.

INFORMATION

Drawing

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