Datasheet Summary
NEe Microputers, Inc.
4-81T SINGLE CHIP MICROPUTER
NEe
JLPD550L
DESCRIPTION
The tlPD550L is a tl-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 tlPD550L is manufactured with a lowpower-consumption PMOS process, allowing use of a -8V, low current power supply. The tlPD550L provides all of the hardware Features of the tl-45 family, except that it has a 640 x 8 bit ROM to reduce device cost. The tlPD550L executes all 58 instructions of the tl- 45 instruction set.
PIN CONFIGURATION
Cl, PCo 2 PC, 3 PC2 4 PC3 5 POo 6
PO, 7 tlPD P02 8 550L P03...