The F-14A
Central Air Data Computer
MP944 Microprocessor

F14A Microprocessor Chip Set

---

| Home | Computer History Links | F14 Links |
| F14 Design Paper | Reviewer's Comments |

---

The F14A microprocessor chip set, the MP944, consisted of six MOS-LSI chips. These are the Parallel Multiplier Unit (PMU), the Parallel Divider Unit (PDU), the Random Access Storage (RAS), the Read Only Memory (ROM), the Special Logic Function (SLF), and the Steering Logic Unit (SLU). The complete microprocessor system used 1-PMU, 1-PDU, 1-SLF, 3-RAS's, 2-SLU's, and 19-ROM's. Here are the stats on the chips. All chip circuit design and layout was engineered by the staff of American Microsystems.

MP944 Chip Stats
MOS Process: P-Channel Enhanced Mode
Arithmetic word length: 20-bits (19 data plus sign bit)
Arithmetic Units Operation: Simultaneous Parallel Processing
Operational Mode: Parallel Arithmetic / Pipelined serial data transfer
Operating Temperature: -55 deg C to +125 deg C (mil spec)
Clock speed: 375Khz
Clock signal level: -28 volts
Logic signal level: -10 volts
click on chip name below for more details and photos

(c) Copyright 1998 - 2002 Ray M. Holt ALL RIGHTS RESERVED