UPD547

NEe Microcomputers, Inc. NEe J.'PD547 4-BIT SINGLE CHIP MICROCOMPUTER OEseR IPTION The /lPD547 is the original /lCOM-44 4-bit single chip microcomputer. It is manufactured with a standard PMOS process, allowing use of a single - 10V power supply. The /lPD547 provides all of the hardware features of the /lCOM-44 family, and executes all 58 instructions of the /lCOM-44 instruction set. PIN CONFIGURATION CL, PCo PC, PC2 PC3 TNT RESET POD PO, P02 P03 PEO PE, PE2 PE3 PFo PF, PF2 PF3 TEST Vss 2 3 4 5 6 7 a pPD 547 CLo VGG PB3 PB2 PB, paO PA3 PA2 PA, PAO PI2 PI, PIO PH3 PH2 PH, PHO PG3 PG2 PG, PGo PAO-PA3 PBO-PB3 PCO-PC3 PDO-PD3 PEO-PE3 PFO-PF3 PGO-PG3 PHO-PH3 PIO-PI2 INT CLO-CL, RESeT VGG VSS TEST PIN NAMES Input Port A Input Port a Input/Output Port C Input/Output Port D Output Port E Output Port F Output Port G Output Port H Output Port I Interrupt Input External Clock Signals Reset Power Suppl y Negative Power Supply Positive Factory Test Pin (Connect to VSS) ABSOLUTE MAXIMUM ...