Editing nec/μcom-43/μpd553

{{nec title|μPD553 (μCOM-43H)}}
{{mcu
| image           = <!-- foobar.png                -->
| caption         = <!-- description of foobar.png -->
| name            = NEC μCOM-43H
| manufacturer    = NEC
| model number    = μCOM-43H
| part number     = μPD553
| first launched  = 1977
| family          = μCOM-43
| clock min       = 150 kHz
| clock max       = 440 kHz
| microarch       = μCOM-4
| process         = 
| tech            = pMOS
| word size       = 4 bit
| electrical      = yes
| temp max        = 70 °C
| temp min        = -10 °C
| vdd             = -10 V
| vss             = 0 V
| memory          = yes
| rom             = 2 kB
| rom break       = 2000x8 bit
| ram             = 48 B
| ram break       = 96x4 bit
| stack levels    = 3
| pins            = yes
| pin count       = 42
| irq lines       = 2
| io lines        = 35
| packaging       = yes
| package         = DIP42
| package type    = DIP
}}
The '''μPD553''' or '''μCOM-43H''' is a general-purpose {{arch|4}} [[microcontroller]] introduced in 1978 by [[NEC]]. This MCU is part of the {{nec|μCOM-43|μCOM-43 family}}. This particular model is a high negative output version of the standard {{nec|μPD546}} version, capable of being pulled to -35V, allowing direct driving fluorescent indicator panels.

== Design ==
{{empty section}}

== Instruction Set ==
{{main|nec/μcom-4/isa|l1=μCOM-4 ISA}}
{{empty section}}

== Documents ==
* [[:File:NEC μPD553.pdf|NEC μPD553 datasheet]]

== See also ==
* {{nec|μCOM-43}}
* {{nec|μCOM-4}}
* {{nec|μCOM-8}}


{{stub}}
family	μCOM-43 +
first launched	1978 +
full page name	nec/μcom-43/μpd553 +
instance of	microcontroller +
manufacturer	NEC +
max operating temperature	70 °C +
microarchitecture	μCOM-4 +
min operating temperature	-10 °C +
model number	μCOM-43H +
name	NEC μCOM-43H +
package	DIP42 +
part number	μPD553 +
pin count	42 +
ram	4.8e-5 MB (0.048 kB, 48 B, 384 b, 4.8e-8 GB) +
ram breakdown	96x4 bit +
rom	0.002 MB (2 kB, 2,000 B, 16,000 b, 2.0e-6 GB) +
rom breakdown	2000x8 bit +
technology	pMOS +
word size	4 bit (0.5 octets, 1 nibbles) +