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M37272MAH Datasheet(PDF) 7 Page - Mitsubishi Electric Semiconductor |
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M37272MAH Datasheet(HTML) 7 Page - Mitsubishi Electric Semiconductor |
7 / 131 page 7 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER M37272M6H/M8H/MAH/MFH–XXXSP/FP M37272E8SP/FP, M37272EFSP/FP MITSUBISHI MICROCOMPUTERS Rev. 1.0 Pin Name Input/ Functions Output VCC, (AVCC,) Power source Apply voltage of 5 V ± 10 % to (typical) VCC , and 0 V to VSS. VSS When use M37272E8SP/FP, M37272EFSP/FP, apply voltage of 5 V ± 10 % to (typical) AVCC. CNVSS CNVSS This is connected to VSS. ______ RESET Reset input Input To enter the reset state, the reset input pin must be kept at a LOW for 2 µs or more (under normal VCC conditions). If more time is needed for the quartz-crystal oscillator to stabilize, this LOW condition should be maintained for the required time. XIN Clock input Input This chip has an internal clock generating circuit. To control generating frequency, an external ceramic resonator or a quartz-crystal oscillator is connected between pins XIN and XOUT Clock output Output XOUT. If an external clock is used, the clock source should be connected to the XIN pin and the XOUT pin should be left open. P00/PWM0– I/O port P0 I/O Port P0 is an 8-bit I/O port with direction register allowing each I/O bit to be individually P05/PWM5, programmed as input or output. At reset, this port is set to input mode. The output structure P06/INT2/AD4, is N-channel open-drain output. (See note 1) P07/INT1 PWM output Output Pins P00–P05 are also used as PWM output pins PWM0–PWM5 respectively. The output structure is N-channel open-drain output. External interrupt Input Pins P06 and P07 are also used as INT external interrupt input pins INT2 and INT1 respectively. input Analog input Input P06 pin is also used as analog input pin AD4. P10/OUT2, I/O port P1 I/O Port P1 is an 8-bit I/O port and has basically the same functions as port P0. The output P11/SCL1, structure is CMOS output. (See note 1) P12/SCL2, OSD output Output Pins P10 is also used as OSD output pin OUT2. The output structure is CMOS output. P13/SDA1, Multi-master I/O Pins P11–P14 are used as SCL1, SCL2, SDA1 and SDA2 respectively, when multi-master P14/SDA2, I2C-BUS interface I2C-BUS interface is used. The output structure is N-channel open-drain output. P15/AD1/INT3, Analog input Input Pins P10, P15–P17 are also used as analog input pin AD8, AD1–AD3 respectively. P16/AD2, External interrupt Input P15 pin is also used as INT external interrupt input pin INT3. P17/AD3 input P20/SCLK, I/O port P2 I/O Port P2 is an 8-bit I/O port and has basically the same functions as port P0. The output P21/SOUT, structure is CMOS output. (See note 1) P22/SIN, Serial I/O synchronous I/O P20 pin is also used as serial I/O synchronous clock input/output pin SCLK. The output P23/TIM3, clock input/output port structure is N-channel open-drain output. P24/TIM2, Serial I/O data I/O P21 pin is also used as serial I/O data output pin SOUT. The output structure is open-drain P25, output output. P26/OSC1/ Serial I/O data input Input P22 pin is also used as serial I/O data input pin SIN. XCIN, External clock Input Pins P23 and P24 are also used as timer external clock input pins TIM3 and TIM2 P27/OSC2/ input for timer respectively. XCOUT Clock input for OSD Input P26 pin is also used as OSD clock input pin OSC1. (See note 2) Clock output for OSD Output P27 pin is also used as OSD clock input pin OSC2. The output structure is CMOS output. (See note 2) Sub-clock input Input P26 pin is also used as sub-clock input pin XCIN. Sub-clock output Output P27 pin is also used as sub-clock output pin XCOUT. 7. PIN DESCRIPTION Table 7.1 Pin Description 7 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER MITSUBISHI MICROCOMPUTERS |
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