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M38B71M1 Datasheet(PDF) 18 Page - Renesas Technology Corp

Part No. M38B71M1
Description  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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Maker  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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M38B71M1 Datasheet(HTML) 18 Page - Renesas Technology Corp

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38B7 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
17
Fig. 11 Port block diagram (1)
(6) Ports P70 to P72, P82, P90, PB6
INT0, INT1, INT2 interrupt input
CNTR1 input
Serial I/O input
P90
(3) Port P64
RxD input
(4) Ports P65, P66
TxD or SCLK21 output
P66
(5) Port P67
(2) Ports P1, P3, P4, P5, P60 to P63
read
VEE
P4, P5, P60 to P63
(1) Ports P0, P2
VEE
Data bus
Local data
bus
Port latch
Dimmer signal
(Note 1)
Data bus
Local data
bus
Dimmer signal
(Note 1)
Port latch
FLD/Port
switch register
Direction register
(Note 2)
Pull-up control
Data bus
Local data
bus
Port latch
FLD/Port
switch register
Direction register
FLD/Port
switch register
Port latch
Direction register
Serial clock input
Data bus
Local data
bus
Dimmer signal
(Note 1)
Pull-up control
Dimmer signal
(Note 1)
P-channel output disable signal (P65)
Output OFF control signal
Port latch
FLD/Port
switch register
Direction register
Data bus
Local data
bus
Pull-up control
Dimmer signal
(Note 1)
Serial ready output
SRDY2 output enable bit
Serial I/O2 enable bit
Serial clock output
Clock I/O pin selection bit
Synchronous clock
selection bit
Serial clock input
Data bus
Port latch
Direction register
Pull-up control
A-D conversion input
Analog input pin selection bit
High-breakdown-voltage P-channel transistor
Notes 1: The dimmer signal sets the Toff timing.
2: A pull-down resistor is not built in to ports P4, P5 and P60 to P63.
Serial I/O2 selection signal
Output


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