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M37481M8-XXXFP Datasheet(PDF) 2 Page - Renesas Technology Corp |
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M37481M8-XXXFP Datasheet(HTML) 2 Page - Renesas Technology Corp |
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2 / 98 page  MITSUBISHI MICROCOMPUTERS 7480/7481 GROUP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER DESCRIPTION The 7480/7481 group is the single-chip microcomputer adopting the silicon gate CMOS process. In addition to its simple instruction set, the ROM, RAM, and I/O addresses are placed in the same memory space. Having built-in serial I/O, A-D converter, and watchdog timer, this single-chip microcomputer is useful for control of automobiles, of- fice automation equipment and home electric appliances. The 7480/7481 group includes multiple types which differ in the memory type, size, and package. FEATURES qNumber of basic machine language instructions ..................... 71 qMinimum instruction execution time ................................... 0.5 µs (at 8 MHz clock input oscillation frequency) qMemory size ROM ........................................... 4 K to 16 K bytes RAM ............................................ 128 to 448 bytes qProgrammable I/O ports .................................... 18 (7480 group) (P0, P1, P4, P5) 24 (7481 group) qInput ports ............................................................ 8 (7480 group) (P2, P3) 12 (7481 group) qBuilt-in programmable pull-up transistors (P0, P1) qBuilt-in clamp diodes ............................................ 2 (7480 group) (P4, P5) 8 (7481 group) qInterrupt ................................................... 14 sources, 13 vectors qTimer X, Y ..................................................................... 16-bit ! 2 qTimer 1, 2 ....................................................................... 8-bit ! 2 qSerial I/O ....................... 8-bit x 1 (UART or clock-synchronized) qA-D converter ............................ 8-bit x 4 channels (7480 group) 8-bit x 8 channels (7481 group) qBuilt-in watchdog timer qPower source voltage ................................................ 2.7 to 4.5 V (at [2.2 VCC-2] MHz clock input oscillation frequency) 4.5 to 5.5 V (at 8 MHz clock input oscillation frequency) qPower dissipation .............................................................. 35 mW (at 8 MHz clock input oscillation frequency and 5 V power source voltage) APPLICATIONS Automobiles, office automation equipment, home electric appli- ances, etc. Fig. 1 Pin configuration (top view) PRELIMINAR Y Notice: This is not a final specification. Some parametric limits are subject to change. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 P17/SRDY P16/SCLK P15/TXD P14/RXD P13/T1 P12/T0 P11 P10 P23/IN3 P22/IN2 P21/IN1 P20/IN0 VREF XIN XOUT VSS P07 P06 P05 P04 P03 P02 P01 P00 P41/CNTR1 P40/CNTR0 P33 P32 P31/INT1 P30/INT0 RESET VCC Outline 32P4B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 P17/SRDY P16/SCLK P15/TXD P14/RXD P13/T1 P12/T0 P11 P10 P23/IN3 P22/IN2 P21/IN1 P20/IN0 VREF XIN XOUT VSS P07 P06 P05 P04 P03 P02 P01 P00 P41/CNTR1 P40/CNTR0 P33 P32 P31/INT1 P30/INT0 RESET VCC Outline 32P2W-A PIN CONFIGURATION |
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