MM54C89 memory equivalent, 64-bit tri-state random access read/write memory.
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Wide supply voltage range 3 0V to 15V Guaranteed noise margin 1 0V High noise immunity 0 45 VCC (typ ) Low power fan out of 2 TTL compatibility driving 74.
The MM54C89 MM74C89 is a 16-word by 4-bit random access read write memory Inputs to the memory consist of four address lines four data input lines a write enable line and a memory enable line The four binary address inputs are decoded internally to s.
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