MCM32A64 - 128KB and 256KB Secondary Cache Fast Static RAM

Motorola Semiconductor (now NXP Semiconductors)

Download the MCM32A64 datasheet PDF. This datasheet also covers the MCM32A32 variant, as both devices belong to the same 128kb and 256kb secondary cache fast static ram family and are provided as variant models within a single manufacturer datasheet.

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MCM32A64 128kb and 256kb secondary cache fast static ram by Motorola Semiconductor (now NXP Semiconductors) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (MCM32A32-Motorola.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	MCM32A64
Manufacturer	Motorola Semiconductor (now NXP Semiconductors)
File Size	268.79 KB
Description	128KB and 256KB Secondary Cache Fast Static RAM
Datasheet	MCM32A64 Datasheet

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number	Description
MCM32A32	128KB and 256KB Secondary Cache Fast Static RAM
MCM32A732	128KB/256KB Secondary Cache Module
MCM32A764	128KB/256KB Secondary Cache Module
MCM32A832	128KB/256KB Secondary Cache Module
MCM32A864	128KB/256KB Secondary Cache Module
MCM32A932	128KB/256KB Secondary Cache Module
MCM32A964	128KB/256KB Secondary Cache Module
MCM32AB128	128KB/256KB/512KB Secondary Cache
MCM32AB32	128KB/256KB/512KB Secondary Cache
MCM32AB64	128KB/256KB/512KB Secondary Cache

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MOTOROLA • SEMICONDUCTOR TECHNICAL DATA 128KB and 256KB Secondary Cache Fast Static RAM Modules With Tag for 486 Processor Based Systems MCM32A32 MCM32A64 The MCM32A32 and MCM32A64 are two products in Motorola's asynchronous secondary cache module family for the 486 processor. The modules are configured with 32-bit data, 8-bit tag, and an altered bit for cache writeback. The family supports all cache sizes of the 486 processor. They are offered in 33 and 50 MHz versions: The 32A32 is a 128KB single bank cache of 32K x 32. The tag is an 8K x 8, and the altered bit is 8K x 1. The 32A64 is a 256KB double bank cache of 64K x 32. The tag is 16K x 8 and the altered bit is 16K x 1. The cache family is designed to interface with popular 486 chipsets with on-board cache controllers.