UPD554L Datasheet - NEC

UPD554L 4-BIT SINGLE CHIP MICROCOMPUTER

The j.lPD554L is a j.lCOM-45 4-bit single chip microcomputer 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, .

UPD554L Features

* of the j.lCOM-45 family, and executes all 58 instructions of the j.lCOM-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 PF3 PF2 PFI PFo TEST PAO-PA3 PCO-PC3 POO-P03 PEO-PE3 PFO-PF3 PGO ClO

UPD554L-NEC.pdf