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− | {{nec title|μPD556 ( | + | {{nec title|μPD556 (μCOM-43 EVACHIP)}} |
{{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 = μCOM-43 EVACHIP |
| part number = μPD556 | | part number = μPD556 | ||
− | | part number | + | | part number 1 = μPD556B |
| first launched = 1977 | | first launched = 1977 | ||
| family = μCOM-43 | | family = μCOM-43 | ||
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| package type 1 = CerQIL | | package type 1 = CerQIL | ||
}} | }} | ||
− | The '''μPD556''' or ''' | + | 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 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]] | ||
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== See also == | == 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 | 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) + |