UPD554 Datasheet (NEC) - 4-BIT SINGLE CHIP MICROCOMPUTER

UPD554, 4-BIT SINGLE CHIP MICROCOMPUTER

The J,lP0554 is the standard J,lCOM-45 4 *bit single chip microcomputer.

with high voltage outputs that can be'pulled to -35V for direct interfacing to vacuum fluorescent displays.

The J,lP0554 is manufactured with a standard PMOS process.

allowing use of a single -1 OV power supply.

The J,lP055

UPD554 Features

* of the J,lCOM-45 family. and executes all 58 instructions of the J,lCOM-45 instruction set. PIN CONFIGURATION Cll PCo PC, PC2 PCa POo PO, P02 POa PEO PEl PE2 PE3 VSS Clo VGG RESET iNT PAa PA2 PAl PAo PGO PF3 PF2 PF, PFo TEST PAo-PAa PCo,PC3 POO-P03 PEo

* PEa PFo

* PFa PGO INT ClO

* Cll RES