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M37516ECH-XXXKP Datasheet(PDF) 4 Page - Renesas Technology Corp |
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M37516ECH-XXXKP Datasheet(HTML) 4 Page - Renesas Technology Corp |
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4 / 63 page  3 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 7516 Group (Spec. H) Table 1 Pin description VCC, VSS CNVSS VREF AVss RESET XIN XOUT P00/SIN2 P01/SOUT2 P02/SCLK2 P03/SRDY2 P04–P07 P10–P17 P20/XCOUT P21/XCIN P22/SDA1 P23/SCL1 P24/SDA2/RxD P25/SCL2/TxD P26/SCLK P27/CNTR0/ SRDY1 P30/AN0– P35/AN5 P40/CNTR1 P41/INT0 P42/INT1 P43/INT2/SCMP2 P44/INT3/PWM P45 Functions Name Pin •Apply voltage of 2.7 V – 5.5 V to Vcc, and 0 V to Vss. •This pin controls the operation mode of the chip. •Normally connected to VSS. •Reference voltage input pin for A-D converter. •Analog power source input pin for A-D converter. •Connect to Vss. •Reset input pin for active “L”. •Input and output pins for the clock generating circuit. •Connect a ceramic resonator or quartz-crystal oscillator between the XIN and XOUT pins to set the oscillation frequency. •When an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open. •8-bit CMOS I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •CMOS 3-state output structure. •P10 to P17 (8 bits) are enabled to output large current for LED drive. Power source CNVSS input Reference voltage input Analog power source input Reset input Clock input Clock output I/O port P0 I/O port P1 I/O port P2 I/O port P3 I/O port P4 Function except a port function • Sub-clock generating circuit I/O pins (connect a resonator) • I2C-BUS interface function pins • I2C-BUS interface function pin/ Serial I/O1 function pins • Serial I/O1 function pin • Serial I/O1 function pin/ Timer X function pin • Serial I/O2 function pin • A-D converter input pin • Timer Y function pin • Interrupt input pins • Interrupt input pin/SCMP2 output pin • Interrupt input pin/PWM output pin •8-bit CMOS I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •P22 to P25 can be switched between CMOS compat- ible input level or SMBUS input level in the I2C-BUS interface function. •P20, P21, P24 to P27: CMOS 3-state output structure. •P24, P25: N-channel open-drain structure in the I2C- BUS interface function. •P22, P23: N-channel open-drain structure. •8-bit CMOS I/O port with the same function as port P0. •CMOS compatible input level. •CMOS 3-state output structure. •8-bit CMOS I/O port with the same function as port P0. •CMOS compatible input level. •CMOS 3-state output structure. |
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