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MCM32AB128 - 128KB/256KB/512KB Secondary Cache

Download the MCM32AB128 datasheet PDF. This datasheet also covers the MCM32AB32 variant, as both devices belong to the same 128kb/256kb/512kb secondary cache family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (MCM32AB32-Motorola.pdf) that lists specifications for multiple related part numbers.

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MCM32AB32 128KB/256KB/512KB Secondary Cache
MCM32AB64 128KB/256KB/512KB Secondary Cache
MCM32A32 128KB and 256KB Secondary Cache Fast Static RAM
MCM32A64 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

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.

View original datasheet text
MOTOROLA • SEMICONDUCTOR TECHNICAL DATA Advance Information 128KB/256KB/512KB Secondary Cache Module With Tag, Valid, and Dirty for 486 Processor Based Systems MCM32AB32 MCM32AB64 MCM32AB128 The MCM32AB32SG, MCM32AB64SG, and MCM32AB128 are a family of Motorola's asynchronous secondary cache modules for the 486 processor. This family is suited for the Intel 82420 PCI chipset. The modules are configured with 32 bit data, 7 bit tag, valid and a dirty bit for cache writeback. The family supports three cache sizes of the 486 processor. The MCM32AB32SG is a 128KB single bank cache of 32K x 32. The tag/valid is 8K x 8, and the Dirty bit is 8K x 1. The MCM32AB64SG is a 256KB double bank cache of 64K x 32. The tag/valid is 16K x 8 and the Dirty bit is 16K x 1.