Semiconductor & Computer Engineering
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Difference between revisions of "rockwell international/pps-4-1"
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| arch = 4-bit words, 8-bit instruction | | arch = 4-bit words, 8-bit instruction | ||
| − | | word = 4 | + | | word = 4 bit |
| proc = <!-- process, e.g. "8 μm" --> | | proc = <!-- process, e.g. "8 μm" --> | ||
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== Members == | == Members == | ||
| − | The PPS-4/1 were considerably slower than their multi-chip counterparts, operating at only up to half of their frequency (40 KHz-100 KHz). | + | The PPS-4/1 were considerably slower than their {{rockwell|pps-4|multi-chip counterparts}}, operating at only up to half of their frequency (40 KHz-100 KHz). |
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
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Latest revision as of 00:00, 19 May 2016
| Rockwell PPS-4/1 | |
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| |
| Developer | Rockwell International |
| Manufacturer | Rockwell International |
| Production | 1976 |
| Architecture | 4-bit words, 8-bit instruction |
| Word size | 4 bit 0.5 octets
1 nibbles |
| Technology | pMOS |
| Clock | 40 kHz-100 kHz |
| Package | QIL42 |
The PPS-4/1 (Parallel Processing System - 4-bit word - 1 chip) was a family of 4-bit microcontrollers chips designed by Rockwell International and introduce in 1st quarter of 1976. The PPS-4/1 is the third iteration of the original PPS-4. The PPS-4/1 were architecturally identical to the PPS-4 and PPS-4/2 with the addition of a clock generator and program memory incorporated internally, making it a single-chip system (hence the "/1"). It's full compatible with all the original PPS-4 CPU and all the other parts.
Members[edit]
The PPS-4/1 were considerably slower than their multi-chip counterparts, operating at only up to half of their frequency (40 KHz-100 KHz).
| Part | RAM | ROM | I/O Ports | Notes |
|---|---|---|---|---|
| MM75 | 48x4 bits | 640x8 bits | 22 | Reduced I/O |
| MM76 | 48x4 bits | 640x8 bits | 31 | |
| MM76C | 48x4 bits | 640x8 bits | 39 | |
| MM76D | 48x4 bits | 640x8 bits | 37 | |
| MM76E | 48x4 bits | 1024x8 bits | 31 | |
| MM77 | 96x4 bits | 1344x8 bits | 31 | |
| MM78 | 128x4 bits | 2048x8 bits | 31 |
See also[edit]
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This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information. |
Facts about "PPS-4/1 - Rockwell International"
| designer | Rockwell International + |
| full page name | rockwell international/pps-4-1 + |
| instance of | integrated circuit family + |
| main designer | Rockwell International + |
| manufacturer | Rockwell International + |
| name | Rockwell PPS-4/1 + |
| package | QIL42 + |
| technology | pMOS + |
| word size | 4 bit (0.5 octets, 1 nibbles) + |