NEC MuPD754144 Datasheet

Contents

NEC MuPD754144 Datasheet Manual pdf 4 page image

μPD754144, 7542444 Data Sheet U10040EJ2V1DSCONTENTS1. PIN CONFIGURATION (TOP VIEW) .................................................................................................... 62. BLOCK DIAGRAM ................................................................................................................................83. PIN FUNCTION .....................................................................................................................................93.1 Port Pins ......................................................................................................................................93.2 Non-port Pins ............................................................................................................................103.3 Pin Input/Output Circuits ......................................................................................................... 113.4 Recommended Connection of Unused Pins .......................................................................... 124. SWITCHING FUNCTION BETWEEN MK I MODE AND MK II MODE ............................................... 134.1 Difference between Mk I and Mk II Modes .............................................................................. 134.2 Setting Method of Stack Bank Select Register (SBS) ........................................................... 145. MEMORY CONFIGURATION ............................................................................................................. 156. EEPROM ............................................................................................................................................. 187. PERIPHERAL HARDWARE FUNCTIONS ......................................................................................... 197.1 Digital Input/Output Ports ........................................................................................................ 197.2 Clock Generator ........................................................................................................................ 197.3 Basic Interval Timer/Watchdog Timer ..................................................................................... 227.4 Timer Counter ........................................................................................................................... 237.5 Programmable Threshold Port (Analog Input Port) ............................................................... 277.6 Bit Sequential Buffer ....... 16 Bits ............................................................................................ 288. INTERRUPT FUNCTION AND TEST FUNCTION .............................................................................. 299. STANDBY FUNCTION ........................................................................................................................ 3110. RESET FUNCTION ............................................................................................................................. 3210.1 Configuration and Operation Status of RESET Function ..................................................... 3210.2 Watchdog Flag (WDF), Key Return Flag (KRF) ...................................................................... 3611. MASK OPTION ................................................................................................................................... 3812. INSTRUCTION SETS .......................................................................................................................... 3913. ELECTRICAL SPECIFICATIONS ...................................................................................................... 4813.1μPD754144 ................................................................................................................................. 4813.2μPD754244 ................................................................................................................................. 5614. CHARACTERISTICS CURVES (REFERENCE VALUES) ................................................................. 6714.1μPD754144 ................................................................................................................................. 6714.2μPD754244 ................................................................................................................................. 69*