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Difference between revisions of "nec/μcom-43/μpd556"
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| − | {{nec title|μPD556 ( | + | {{nec title|μPD556 (EVACHIP-43)}} |
{{mcu | {{mcu | ||
| image = <!-- foobar.png --> | | image = <!-- foobar.png --> | ||
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| name = NEC μCOM-43 EVACHIP | | name = NEC μCOM-43 EVACHIP | ||
| manufacturer = NEC | | manufacturer = NEC | ||
| − | | model number = | + | | model number = EVACHIP-43 |
| part number = μPD556 | | part number = μPD556 | ||
| − | | part number | + | | part number 2 = μPD556B |
| first launched = 1977 | | first launched = 1977 | ||
| family = μCOM-43 | | family = μCOM-43 | ||
| Line 38: | Line 38: | ||
| package type 1 = CerQIL | | package type 1 = CerQIL | ||
}} | }} | ||
| − | The '''μPD556''' or ''' | + | The '''μPD556''' or '''EVACHIP-43''' is a {{arch|4}} evaluation/development [[microcontroller]] used for both software and hardware debugging of the {{nec|μPD546}} microcontroller. Since the {{nec|μCOM-43}} is a strict superset of the {{nec|μCOM-44}} and {{nec|μCOM-45}}, this evaluation chip was also used for debugging those two those chip families as well. |
The 556 is functionally identical to the {{nec|μPD546}} without the internal memory, which instead is needed to be supplied externally and connected via the additional pins. This chip also has a HOLD operation that allows step-by-step inspection of operations. | The 556 is functionally identical to the {{nec|μPD546}} without the internal memory, which instead is needed to be supplied externally and connected via the additional pins. This chip also has a HOLD operation that allows step-by-step inspection of operations. | ||
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== Documents == | == Documents == | ||
* [[:File:NEC μPD556.pdf|NEC μPD556 datasheet]] | * [[:File:NEC μPD556.pdf|NEC μPD556 datasheet]] | ||
| + | |||
| + | == References == | ||
| + | *NEC Microcomputers, Inc., 1980 Catalog, "μCOM-43/44/45 4-Bit Single Chip Microcomputers, {{nec|μPD556}} EVACHIP-43", 153-156 pp. | ||
| + | *NEC Electronics (Europe) GmbH, 1982 Catalog, "{{nec|μPD556B}} μCOM-4 4-Bit Single Chip ROM-less Evaluation Chip", 173-176 pp. | ||
== See also == | == See also == | ||
Latest revision as of 04:24, 1 August 2018
| NEC μCOM-43 EVACHIP | |
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| |
| Manufacturer | NEC |
| Model Number | EVACHIP-43 |
| Part Number | μPD556, μPD556B |
| Introduction | 1977 (launch) |
| General information | |
| Family | μCOM-43 |
| Clock | 150 kHz-440 kHz |
| Microarchitecture | |
| Microarchitecture | μCOM-43 |
| 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 | 48 B 4.8e-5 MB (96x4 bit)
0.048 kB 384 b 4.8e-8 GB |
| Max Addressable Memory | 2 kB |
| Stack | 3 levels |
| Pins | |
| Pins | 64 |
| IRQ lines | 2 |
| I/O ports | 35 |
| Packaging | |
| Package | QIL64 (QIL), CerQIL64 (CerQIL) |
The μPD556 or EVACHIP-43 is a 4-bit evaluation/development microcontroller used for both software and hardware debugging of the μPD546 microcontroller. Since the μCOM-43 is a strict superset of the μCOM-44 and μCOM-45, this evaluation chip was also used for debugging those two those chip families as well.
The 556 is functionally identical to the μPD546 without the internal memory, which instead is needed to be supplied externally and connected via the additional pins. This chip also has a HOLD operation that allows step-by-step inspection of operations.
Design[edit]
 |
This section is empty; you can help add the missing info by editing this page. |
Instruction Set[edit]
- Main article: μCOM-4 ISA
| |
This section is empty; you can help add the missing info by editing this page. |
Documents[edit]
References[edit]
- NEC Microcomputers, Inc., 1980 Catalog, "μCOM-43/44/45 4-Bit Single Chip Microcomputers, μPD556 EVACHIP-43", 153-156 pp.
- NEC Electronics (Europe) GmbH, 1982 Catalog, "μPD556B μCOM-4 4-Bit Single Chip ROM-less Evaluation Chip", 173-176 pp.
See also[edit]
Facts about "μPD556 (EVACHIP-43) - NEC"
| family | μCOM-43 + |
| first launched | 1977 + |
| full page name | nec/μcom-43/μpd556 + |
| instance of | microcontroller + |
| manufacturer | NEC + |
| max operating temperature | 70 °C + |
| microarchitecture | μCOM-43 + |
| min operating temperature | -10 °C + |
| model number | EVACHIP-43 + |
| name | NEC μCOM-43 EVACHIP + |
| package | QIL64 + and CerQIL64 + |
| part number | μPD556 + and μPD556B + |
| pin count | 64 + |
| ram | 4.8e-5 MB (0.048 kB, 48 B, 384 b, 4.8e-8 GB) + |
| ram breakdown | 96x4 bit + |
| technology | pMOS + |
| word size | 4 bit (0.5 octets, 1 nibbles) + |