Datasheet Summary
NEe Microputers, Inc.
4-81T SINGLE CHIP MICROPUTER
NEe
JLPD557L
DESCR IPTION
The pP0557L is a p-43 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 pPD557L is manufactured with a lowpower-consumption PMOS process, allowing use of a -8V, low current power supply. The pPD557L provides all of the hardware Features of the p-43 family, except that it has 21 I/O lines in a 28-pin dual-in-line package to reduce device cost. The pP0557 L executes all 80 instructions of the p-43 instruction set.
PIN CONFIGURATION Cl,
PCo 2 PC, 3 PC2 4 PC3 5 PDO 6 PD, 7...