CY62128BLL-70ZAXE

Product Overview

The CY62128BLL-70ZAXE from Cypress Semiconductor Corp is a 1 Mbit asynchronous SRAM intended for parallel-bus embedded systems. It provides a volatile 128K x 8 memory organization with a 70 ns access time and a 70 ns write cycle time. This configuration suits designs that use an 8-bit parallel memory bus. The device operates from a 4.5 V to 5.5 V supply across -40°C to 125°C TA. It uses a surface-mount 32-TSOP package with a 32-TFSOP case width of 0.465 in / 11.80 mm.

Key Features

• Asynchronous SRAM technology.
• 1 Mbit volatile SRAM with a 128K x 8 organization.
• Parallel memory interface for byte-wide data access.
• 70 ns access time and 70 ns write cycle time.
• 4.5 V to 5.5 V supply voltage range.
• Operating temperature range of -40°C to 125°C TA.
• Surface-mount 32-TSOP package with 32-TFSOP 0.465 in / 11.80 mm width.

Applications

• Embedded controller memory expansion using a parallel SRAM interface.
• Temporary data buffering in microprocessor-based designs.
• Volatile working storage in 5 V logic systems.

Design & Procurement Notes

Designers should verify that the host parallel bus can meet the 70 ns access and write timing and that the system supply remains within 4.5 V to 5.5 V. The 128K x 8 organization suits byte-wide addressing, while the 32-TSOP surface-mount footprint requires pad layout compatibility with a 0.465 in / 11.80 mm package. Consider decoupling, trace length, and thermal margin for operation across the -40°C to 125°C ambient range.