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IS62LV256AL-45TLI

IS62LV256AL-45TLI

ISSI
SRAM 256K 32Kx8 45ns 3.3v Async SRAM 3.3v
1,394 in stock

Overview

The IS62LV256AL-45TLI is a 256K bit (32K x 8) high-speed, low-power asynchronous CMOS static RAM. It operates on a single 3.3V power supply and features a fast 45ns access time with fully static operation, requiring no clock or refresh cycles. The device is designed for industrial temperature environments and includes an automatic power-down mode when the chip is deselected to minimize energy consumption.

Why Choose This Part

The component offers a significant power advantage with a standby current of only 20uA and an active run current of 12mA at maximum frequency. Its 45ns access time ensures compatibility with high-performance microprocessors without requiring complex wait-state logic. Additionally, the TTL-compatible interface and 28-pin TSOP package make it easy to integrate into existing 3.3V digital logic designs.

Applications

Embedded System Buffering
Acts as a high-speed data buffer for 8-bit or 16-bit microcontrollers that require additional workspace memory.
Industrial Controller Workspace
Provides reliable data storage for PLCs and industrial automation equipment operating in harsh temperature ranges from -40C to +85C.
Low-Power Handheld Devices
Utilizes its 20uA standby current and CMOS low-power design to extend battery life in portable instruments.
Legacy System Maintenance
Serves as a drop-in replacement or expansion memory for legacy systems using standard asynchronous SRAM interfaces.

Getting Started

To use this SRAM, connect the 8-bit data bus and 15-bit address bus to your processor's external memory interface (EMI) or bit-bang the control lines (CE, OE, WE). Ensure a stable 3.3V supply and place a 0.1uF decoupling capacitor close to the VDD pin. No software initialization is required; the memory is ready for read/write operations immediately after power-up.

Also Consider

AS6C62256-55STIN Alliance Memory, Inc. - Provides a 55ns access time and is widely available in a narrow 28-pin SOP package for space-constrained designs.