MCM44256 is 4MB R4000 Secondary Cache Fast Static RAM manufactured by Motorola Semiconductor.
| Part Number | Description |
|---|---|
| MCM44256B | 4MB R4000 Secondary Cache Fast Static RAM Module Set |
| MCM4464 | 1MB R4000 Secondary Cache Fast Static RAM Module Set |
| MCM44A256B | 4MB R4000 Secondary Cache Fast Static RAM Module Set |
| MCM44A64 | 1MB R4000 Secondary Cache Fast Static RAM Module Set |
| MCM44B256B | 4MB R4000 Secondary Cache Fast Static RAM Module Set |
MOTOROLA SEMICONDUCTOR TECHNICAL DATA 4MB R4000 Secondary Cache Fast Static RAM Module Set Four MCM44256 modules prise a full 4 MB of secondary cache for the R4000 processor. Each module contains nine MCM6729WJ fast static RAMs for a cache data size of 256K x 36. The tag portion, dependent on word line size, contains either two MCM6729WJ or one MCM6726WJ fast static RAMs.
