Signetics 82S25
The 82S25 is a 64-bit, Schottky clamped TTL, ReadWrite Random Access Memory ideal for use in scratch pad and high-speed buffer memory applications. The 82S25 is a fu lIy decoded memory array organ ized as 16 words of 4 bits each, with separate input and output lines. It features PNP inputs, one chip enable line, and open collector outputs for ease of memory expansion.| Part No. | 82S25 |
|---|---|
| Datasheet | 82S25 Download |
| Manufacturer |  Signetics |
| Description | 64-BIT BIPOLAR SCRATCH PAD MEMORY |
| Buy | Stock & Price |
DESCRIPTION
The outputs of the 82S25 assume a logic "1" state during write. This allows both memory inputs and outputs to share a common bus for minimizing interconnections, and more effective utilization of common I/O circuitry. The 82S25 is available in the commercial and military temperature ranges. For the commercial temperature range (DOC to +75°C) specify N82S25, B or F. For the military temperature range (-55°C to +125°C) specify S82S25, F only.FEATURES
● ORGANIZATION -16 X 4● ADDRESS ACCESS TIME: S82S25 - 60ns, MAXIMUM N82S25 - 50ns, MAXIMUM
● WRITE CYCLE TIME: S82S25 - 50ns, MAXIMUM N82S25 - 35ns, MAXIMUM
● POWER DISSIPATION - 6.25mW/BIT, TYPICAL
● INPUT LOADING: S82S25 - (-150tLA) MAXIMUM N82S25 - (-100JlA) MAXI MUM
● OUTPUT BLANKING DURING WRITE
● ON-CHIP ADDRESS DECODING
● OPEN COLLECTOR OUTPUTS
● 16 PIN CERAMIC DIP PIN CONFIGURATION B, F PACKAGE* AO 1 16 Vcc WE 3 01 5 GND 8 * B - Plastic F - Cerdip TRUTH TABLE MODE CE WE In Read 0 1 X Write "0" 0 Write" 1" 0 Disabled 1 0 0 0 1 X X x = Don't care.
