Semiconductor & Computer Engineering
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μPD552 (μCOM-44H) - NEC
| NEC μCOM-44H | |
.svg)
| |
| Manufacturer | NEC |
| Model Number | μCOM-44H |
| Part Number | μPD552 |
| Introduction | 1978 (launch) |
| General information | |
| Family | μCOM-44 |
| Clock | 150 kHz-440 kHz |
| Microarchitecture | |
| Microarchitecture | μCOM-4 |
| Technology | pMOS |
| Word size | 4 bit 0.5 octets
1 nibbles |
| Electrical | |
| Op. Temp | -10 °C – 70 °C |
| Supply VDD | -10 V |
| Supply VSS | 0 V |
| Memory | |
| RAM | 32 B 3.2e-5 MB (64x4 bit)
0.032 kB 256 b 3.2e-8 GB |
| ROM | 1.25 kB 0.00125 MB (1000x10 bit)
1,250 B 10,000 b 1.25e-6 GB |
| Stack | 1 levels |
| Pins | |
| Pins | 42 |
| I/O ports | 35 |
| Packaging | |
| Package | DIP42 (DIP) |
The μPD552 or μCOM-44H is a 4-bit microcontroller introduced in 1978 by NEC. This MPU is a high-negative version capable of being pulled to -35V in order to drive various displays directly.
Contents
Design
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Instruction Set
- Main article: μCOM-4 ISA
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Documents
See also
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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 "μPD552 (μCOM-44H) - NEC"
| family | μCOM-44 + |
| first launched | 1978 + |
| full page name | nec/μcom-44/μpd552 + |
| instance of | microcontroller + |
| manufacturer | NEC + |
| max operating temperature | 70 °C + |
| microarchitecture | μCOM-4 + |
| min operating temperature | -10 °C + |
| model number | μCOM-44H + |
| name | NEC μCOM-44H + |
| package | DIP42 + |
| part number | μPD552 + |
| pin count | 42 + |
| ram | 3.2e-5 MB (0.032 kB, 32 B, 256 b, 3.2e-8 GB) + |
| ram breakdown | 64x4 bit + |
| rom | 0.00125 MB (1.25 kB, 1,250 B, 10,000 b, 1.25e-6 GB) + |
| rom breakdown | 1000x10 bit + |
| technology | pMOS + |
| word size | 4 bit (0.5 octets, 1 nibbles) + |
