HM-6642/883 512 x 8 CMOS PROM is a 512 x 8 CMOS NiCr fusible link Programmable Read Only Memory produced by Intersil, which has synchronous circuit design techniques and CMOS processing techniques, and has high speed performance and very low power consumption.
The HM-6642/883 is a 512 × 8 CMOS programmable read‑only memory offered in a 24‑pin package. It features low standby power, fast access times, on‑chip address latches, and separate output enable control, making it suitable for microprocessor‑based instrumentation and communication systems.
The document lists detailed electrical performance data, absolute maximum ratings, package dimensions for both SBDIP and CLCC formats, and handling precautions such as ESD sensitivity. It also includes functional diagrams and test load circuits for verification.
| Memory Size | 512 × 8 bits |
|---|---|
| Supply Voltage | Single 5.0 V |
| Operating Temperature Range | -55 °C to +125 °C |
| Access Time | 120 ns typical, 200 ns max |
| Input Low Voltage | -0.3 V to +0.8 V |
| Input High Voltage | 2.2 V to 2.4 V (VCC+0.3 V) |
| Package Types | SBDIP and CLCC |
It operates from a single 5.0 V supply.
Typical access time is 120 ns, with a maximum of 200 ns.
The device is rated for operation from –55 °C to +125 °C.
It is offered in Ceramic Dual‑in‑Line Metal Seal (SBDIP) and Ceramic Leadless Chip Carrier (CLCC) packages.