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UPD550

Part Number	UPD550
Manufacturer	NEC
Description	4-BIT SINGLE CHIP MICROCOMPUTER
Published	Feb 24, 2017
Detailed Description	NEe Microcomputers, Inc. 4-81T SINGLE CHIP MICROCOMPUTER NEe fLPD550 OESCR IPTION The f,lPD550 is a f,lCOM-45 4-bit s...
Datasheet	UPD550 PDF File

Overview

NEe Microcomputers, Inc.
4-81T SINGLE CHIP MICROCOMPUTER NEe fLPD550 OESCR IPTION The f,lPD550 is a f,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 f,lPD550 is manufactured with a standard PMOS process, allowing use of a single -10V power supply_ The f,lPD550 provides all of the hardware features of the f,lCOM-45 family, except that it has a 640 x 8 bit ROM to reduce device cost_ The f,lPD550 executes all 58 instructions of the f,lCOM-45 instruction set_ PIN CONFIGURATION Cll PCo PCl PC2 PC3 PDO PDl PD2 PD3 PEO PEl PE2 PE3 VSS Clo VGG RESET iN'f PA3 PA2 PAl PAO PGO PF3 PF2 PFl PFo...

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