Signetics 82S27
The 82S27 is a Bipolar 1024-Bit Read Only Memory, organized as 256 words by 4 bits per word. It is FieldProgrammable, which means that custom patterns are immediately available by following the fusing procedure given in this data sheet. The standard 82S27 is supplied with all outputs at logical "0" .| Part No. | 82S27 |
|---|---|
| Datasheet | 82S27 Download |
| Manufacturer |  Signetics |
| Description | 1024-BIT BIPOLAR PROGRAMMABLE ROM |
| Buy | Stock & Price |
DESCRIPTION
Outputs are programmed to a logic "1" level at any specified address by fusing a Ni-Cr link matrix. The 82S27 is fully TTL compatible, and includes on-chip decoding, two chip enable inputs, and open collector outputs for ease of memory expansion. The 82S27 is available in the commercial temperature range. For the commercial temperature range (DoC to +75°C) specify N82S27, F. PIN CONFIGURATION F PACKAGE* 16 VCC Ao 5 14 CE2 13 CE, 12 0, Ground 8FEATURES
● ORGANIZATION - 256 X 4● ADDRESS ACCESS TIME - 40ns, MAXIMUM
● POWER DISSIPATION - 0.6mW/BIT, TYPICAL
● INPUT LOADING -1.6mA, MAXIMUM
● TWO CHIP ENABLE INPUTS
● ON-CHIP ADDRESS DECODING
● OPEN COLLECTOR OUTPUTS
● NO SEPARATE "FUSING" PINS
● UNPROGRAMMED OUTPUTS ARE "0" LEVEL
● 16-PIN CERAMIC DIP * F = Cerdip BLOCK DIAGRAM NI-Cr FUSE ARRAY (1) AO Al A2 A3 32 X 32 A4 MATRIX A5 AS A7 (32)
APPLICATIONS
PROTOTYPING/VOLUME PRODUCTION SEQUENTIAL CONTROLLERS MICROPROGRAMMING HARDWIRED ALGORITHMS VCC "(IS) GND" (8) ( ) " DENOTES PIN...
