Editing nec/μcom-42/μpd548

{{nec title|μPD548 (μCOM-42)}}
{{mcu
| name            = NEC μCOM-42
| manufacturer    = NEC
| model number    = μCOM-42
| part number     = μPD548
| first launched  = 1977
| family          = μCOM-42
| clock min       = 100 kHz
| clock max       = 200 kHz
| microarch       = μCOM-42
| 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             = 2.4 kB
| rom break       = 1920x10 bit
| ram             = 48 B
| ram break       = 96x4 bit
| stack levels    = 4
| pins            = yes
| pin count       = 42
| irq lines       = 2
| io lines        = 1
| i lines         = 1
| o lines         = 12
| packaging       = yes
| package         = DIP42
| package type    = DIP
}}
The '''μPD548''' or '''μCOM-42''' is a {{arch|4}} [[microcontroller]] introduced in 1977 by [[NEC]]. This was the first model of the {{nec|μCOM-42|μCOM-42 family}}. This microcontroler was designed specifically for [[electronic cash register]]s, [[point of sale]]s, and electronic scales.

The μPD548 is designed to control [[8-digit display]], ECR printers, and [[8x4 matrix keyboard]].

== Design ==
{{empty section}}

== Instruction Set ==
{{main|/μcom-42 isa|l1=μCOM-42 ISA}}
{{empty section}}

== Documents ==
* [[:File:NEC μPD548.pdf|NEC μPD548 datasheet]]

== See also ==
* {{nec|μCOM-42}}
* {{nec|μCOM-4}}
* {{nec|μCOM-8}}


{{stub}}
family	μCOM-42 +
first launched	1977 +
full page name	nec/μcom-42/μpd548 +
instance of	microcontroller +
manufacturer	NEC +
max operating temperature	70 °C +
microarchitecture	μCOM-42 +
min operating temperature	-10 °C +
model number	μCOM-42 +
name	NEC μCOM-42 +
package	DIP42 +
part number	μPD548 +
pin count	42 +
ram	4.8e-5 MB (0.048 kB, 48 B, 384 b, 4.8e-8 GB) +
ram breakdown	96x4 bit +
rom	0.0024 MB (2.4 kB, 2,400 B, 19,200 b, 2.4e-6 GB) +
rom breakdown	1920x10 bit +
technology	pMOS +
word size	4 bit (0.5 octets, 1 nibbles) +