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Difference between revisions of "nec/μcom-43/μpd556"
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The '''μPD556''' or '''μCOM-43 EVACHIP''' 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 '''μPD556''' or '''μCOM-43 EVACHIP''' 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. | ||
Revision as of 12:40, 22 January 2016
| NEC μCOM-43 EVACHIP | |
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| |
| Manufacturer | NEC |
| Model Number | μCOM-43 EVACHIP |
| 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 μCOM-43 EVACHIP 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.
Contents
Design
 |
This section is empty; you can help add the missing info by editing this page. |
Instruction Set
- Main article: μCOM-4 ISA
| |
This section is empty; you can help add the missing info by editing this page. |
Documents
See also
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 | μCOM-43 EVACHIP + |
| 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) + |