Datasheet Summary
NEe Microputers, Inc.
4-81T SINGLE CHIP MICROPUTER
NEe
,.,. PD554L
DESCRIPTION
The j.lPD554L is a j.l-45 4-bit single chip microputer with high voltage outputs. and low power consumption_ The outputs can be pulled to -35V for direct interfacing to vacuum fluorescent displays. The j.lPD554L is manufactured with a lowpower-consumption PMOS process, allowing use of a -8V, low current power supply. The j.lPD554 L provides all of the hardware Features of the j.l-45 family, and executes all 58 instructions of the j.l-45 instruction set.
PIN CONFIGURATION Cll
PCo PCt 3 PC2 4 PC3 5 POo 6
POI 7 j.lPD P02 8 554L P03 9
PEO PEl
PE2 PE3 Vss
CLo VGG RESET iNT
PA3 PA2
PAl PAO PGo...