Editing nec/μcom-45/μpd550l

{{nec title|μPD550L (μCOM-45L)}}
{{mcu
| image           = <!-- foobar.png                -->
| caption         = <!-- description of foobar.png -->
| name            = NEC μCOM-45L
| manufacturer    = NEC
| model number    = μCOM-45L
| part number     = μPD550L
| first launched  = 1980
| family          = μCOM-45
| 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             = -8 V
| vss             = 0 V
| memory          = yes
| rom             = 640 B
| rom break       = 640x8 bit
| ram             = 16 B
| ram break       = 32x4 bit
| stack levels    = 1
| pins            = yes
| pin count       = 28
| io lines        = 21
| packaging       = yes
| package         = DIP28
| package type    = DIP
}}
The '''μPD550L''' or '''μCOM-45L''' is a {{arch|4}} [[microcontroller]] introduced in 1980 by [[NEC]] as part of their {{nec|μCOM-45|μCOM-45 family}}. This model allows the use of a single lower power supply of -8V, it's also capable of directly driving [[fluorescent indicator panel]]s at -35 volts.

== Design ==
{{empty section}}

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

== Documents ==
{{empty section}}

== See also ==
* {{nec|μCOM-45}}
* {{nec|μCOM-4}}
* {{nec|μCOM-8}}


{{stub}}
family	μCOM-45 +
first launched	1980 +
full page name	nec/μcom-45/μpd550l +
instance of	microcontroller +
manufacturer	NEC +
max operating temperature	70 °C +
microarchitecture	μCOM-4 +
min operating temperature	-10 °C +
model number	μCOM-45L +
name	NEC μCOM-45L +
package	DIP28 +
part number	μPD550L +
pin count	28 +
ram	1.6e-5 MB (0.016 kB, 16 B, 128 b, 1.6e-8 GB) +
ram breakdown	32x4 bit +
rom	6.4e-4 MB (0.64 kB, 640 B, 5,120 b, 6.4e-7 GB) +
rom breakdown	640x8 bit +
technology	pMOS +
word size	4 bit (0.5 octets, 1 nibbles) +