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MITSUBISHI MICROCOMPUTERS
38B7 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 2 Pin description (2)
Pin
Name
P64/RXD/FLD52, I/O port P6
P65/TXD/FLD53,
P66/SCLK21/FLD54,
P67/SRDY2/SCLK22/
FLD55,
P70/INT0,
I/O port P7
P71/INT1,
P72/INT2,
P73/INT3/DIMOUT,
Function
• 4-bit I/O port .
• Low-voltage input level for input ports.
• CMOS compatible input level for RxD, SCLK21, SCLK22.
• CMOS 3-state output structure.
• 8-bit I/O port.
• CMOS compatible input level.
• CMOS 3-state output structure.
P74/PWM1
P75/T1OUT,
P76/T3OUT,
P77/INT4/BUZ01
P80/XCIN,
P81/XCOUT
I/O port P8
P82/CNTR1,
P83/CNTR0/CNTR2
P90/SIN3/AN8, I/O port P9
P91/SOUT3/AN9,
P92/SCLK3/AN10,
P93/SRDY3/AN11,
P94/RTP1/AN12,
P95/RTP0/AN13
P96/PWM0/AN14
• 4-bit I/O port with the same function as port P7.
• CMOS compatible input level.
• CMOS 3-state output structure.
• 8-bit I/O port with the same function as port P7.
• CMOS compatible input level.
• CMOS 3-state output structure.
P97/BUZ02/AN15
PA0/AN0–PA7/AN7 I/O port PA
PB0/SCLK12/DA I/O port PB
PB1/SRDY1,
PB2/SBUSY1,
PB3/SSTB1,
PB4/SCLK11,
PB5/SOUT1,
PB6/SIN1
• 8-bit I/O port with the same function as port P7.
• CMOS compatible input level.
• CMOS 3-state output structure.
• 7-bit I/O port with the same function as port P7.
• CMOS compatible input level.
• CMOS 3-state output structure.
Function except a port function
• FLD automatic display
pins
• Serial I/O2 function pins
• Interrupt input pins
• Interrupt input pin
• Dimmer signal output pin
• PWM output pin
• Timer output pins
• Interrupt input pin
• Buzzer output pin
• I/O pins for sub-clock generating
circuit (connect a ceramic resonator
or a quarts-crystal oscillator)
• Timer input pin
• Timer I/O pin
• Serial I/O3 function pins
• A-D converter input pins
• Real time port output pins
• A-D converter input pins
• 14-bit PWM output pin
• A-D converter input pin
• Buzzer output pin
• A-D converter input pin
• A-D converter input pin
• Serial I/O1 function pin
• D-A converter output pin
• Serial I/O1 function pins
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