82S21 Datasheet (Signetics) - 64-BIT BIPOLAR HIGH SPEED WRITE-WHILE-READ RAM

82S21, 64-BIT BIPOLAR HIGH SPEED WRITE-WHILE-READ RAM

The 82S21 is a TTL 64 bit Write-While-Read Random Access Memory organized in 32 words of 2 bits each.

The 82S21 is ideally suited for high speed buffers and as the memory element in high speed accumulators.

APPLICATIONS SCRATCH PAD MEMORY BUFFER MEMORY ACCUMULATOR REGISTER CONTROL STORE Words are

82S21 Features

* BUFFERED ADDRESS LINES

* ON CHIP LATCHES

* ON CHIP DECODING

* BIT MASKING CONTROL LINES

* ENABLE CONTROL LI NE

* OPEN COLLECTOR OUTPUTS WITH 40mA CAPABILITY

* PROTECTED INPUTS

* VERY HIGH SPEEDS (25ns TYP) TRUTH TABLE

* CE