UPD78F9177 NEC, UPD78F9177 Datasheet - Page 12

• Manufacturer Part Number: UPD78F9177
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

3.2
12
INTP0
INTP1
INTP2
INTP3
SI20
SO20
SCK20
SS20
ASCK20
RxD20
TxD20
SCL0
SDA0
TI80
TI81
TO80
TO81
TO82
TO90
BZO90
CPT90
ANI0 to
ANI7
AV
AV
AV
X1
X2
XT1
XT2
V
V
V
V
RESET
V
IC0
IC2
Pin Name
DD0
DD1
SS0
SS1
PP
Notes 1.
REF
SS
DD
Note2
Note1
Non-Port Pins
Note1
Note1
2. 48-pin plastic TQFP (fine pitch) only.
PD78F9177Y only.
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
8-bit timer/event counter (TM80) output
8-bit timer/event counter (TM81) output
System reset input
External interrupt input for which the valid edge (rising edge,
falling edge, or both rising and falling edges) can be specified
Serial data input to serial interface
Serial data output from serial interface
Serial clock input/output for serial interface
Chip select input to serial interface
Serial clock input for asynchronous serial interface
Serial data input for asynchronous serial interface
Serial data output for asynchronous serial interface
SMB0 clock input/output
SMB0 data input/output
External count clock input to 8-bit timer/event counter (TM80)
External count clock input to 8-bit timer/event counter (TM81)
8-bit timer (TM82) output
16-bit timer (TM90) output
16-bit timer (TM90) Buzzer output
Capture edge input
A/D converter analog input
A/D converter reference voltage
A/D converter ground potential
A/D converter analog power supply
Connecting crystal resonator for main system clock
oscillation
Connecting crystal resonator for subsystem clock oscillation
Positive power supply
Positive power supply (other than ports)
Ground potential
Ground potential (other than ports)
Sets flash memory programming mode. Applies high voltage
when a program is written or verified. Connect directly to V
or V
Internally connected. Connect this pin directly to the V
V
Internally connected. Leave this pin open.
SS1
SS1
pin.
in normal operation mode.
Data Sheet U14022EJ1V0DS00
Function
SS0
or
SS0
After Reset
PD78F9177, 78F9177Y
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
P30/TI81/CPT90
P31/TO81
P32/TO90
P33/TO82/BZO90
P22/RxD20
P21/TxD20
P20/ASCK20
P25/TI80
P20/SCK20
P22/SI20
P21/SO20
P23
P24
P25/SS20
P30/INTP0/CPT90
P26
P31/INTP1
P33/INTP3/BZO90
P32/INTP2
P33/INTP3/TO82
P30/INTP0/TI81
P60 to P67
Alternate Function