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UPD554L

NEC
Part Number UPD554L
Manufacturer NEC
Description 4-BIT SINGLE CHIP MICROCOMPUTER
Published Feb 24, 2017
Detailed Description NEe Microcomputers, Inc. 4-81T SINGLE CHIP MICROCOMPUTER NEe ,.,. PD554L DESCRIPTION The j.lPD554L is a j.lCOM-45 4-b...
Datasheet PDF File UPD554L PDF File

UPD554L
UPD554L

Overview
NEe Microcomputers, Inc.
4-81T SINGLE CHIP MICROCOMPUTER NEe ,.
,.
PD554L DESCRIPTION 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, low current power supply.
The j.
lPD554 L provides all of the hardware 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-Cll INT RESET VGG VSS TEST PIN NAMES Input Port A Input/Output Port C Input/Output Port 0 Output Port E Output Port F Output Port G External Clock Signals Interrupt Input Reset Power Suppl y Negative Power Supply Positi ve Factory T...


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