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MCM44D64 - 1MB R4000 Secondary Cache Fast Static RAM Module Set

Key Features

  • 0 mV from steady.
  • state voltage with load of Figure 1B. 4. This parameter is sampled and not 100% tested. WRITE CYCLE 1 A1.
  • A15 tAVWH A0 tA0VWH DCS/TCS (DATA/TAG ENABLE) tWLEH tWLWH WE (WRITE ENABLE) tA0VWL tAVWL D (DATA IN) tWLQZ Q (DATA OUT) HIGH.
  • Z HIGH.
  • Z tDVWH DATA VALID tWHAX tWHA0X tWHDX tWHQX MCM4464 SERIES 6.

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MCM44D256B 4MB R4000 Secondary Cache Fast Static RAM Module Set
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MCM44B256B 4MB R4000 Secondary Cache Fast Static RAM Module Set
MCM44B64 1MB R4000 Secondary Cache Fast Static RAM Module Set
MCM44C256B 4MB R4000 Secondary Cache Fast Static RAM Module Set
MCM44C64 1MB R4000 Secondary Cache Fast Static RAM Module Set

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 Order this document by MCM4464/D MCM4464 Series 1MB R4000 Secondary Cache Fast Static RAM Module Set Four MCM4464 modules comprise a full 1 MB of secondary cache for the R4000 processor. Each module contains nine MCM6709J fast static RAMs for a cache data size of 64K x 36. The tag portion, dependent on word line size, contains either two MCM6709J or one MCM6706J fast static RAMs. All input signals, except A0 and WE are buffered using 74FBT2827 drivers with series 25 Ω resistors. The MCM6709J and MCM6706J are fabricated using high–performance silicon–gate BiCMOS technology. Static design eliminates the need for internal clocks or timing strobes. All 1MB R4000 supported secondary cache options are available.