UPD75P3116 NEC, UPD75P3116 Datasheet - Page 8

• Manufacturer Part Number: UPD75P3116
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

8
3.2 Non-port Pins (1/2)
Notes 1. Circuit types enclosed in brackets indicate Schmitt trigger input.
TI0
TI1
TI2
PTO0
PTO1
PTO2
PCL
BUZ
SCK
SO/SB0
SI/SB1
INT4
INT0
INT1
INT2
KR0 to KR3
X1
X2
XT1
XT2
RESET
MD0 to MD3
D0 to D3
D4 to D7
V
V
Vss
PP
DD
Pin name
Note 2
2. The V
Output P20
Input
Input
Input
Input
Input
Input
Input
Input
PP
I/O
I/O
I/O
I/O
—
—
—
—
—
pin does not operate correctly when it is not connected to the V
Alternate function
P13
P12/INT2/TI2
P12/INT2/TI1
P21
P22/PCL
P22/PTO2
P23
P01
P02
P03
P00
P10
P11
P12/TI1/TI2
P60 to P63
P30 to P33
P60/KR0 to P63/KR3 Data bus for program memory (PROM) write/verify
P50 to P53
—
—
—
—
—
—
External event pulse input to timer/event counter
Timer/event counter output
Clock output
Frequency output (for buzzer or system clock trimming)
Serial clock I/O
Serial data output
Serial data bus I/O
Serial data input
Serial data bus I/O
Edge detection vectored interrupt input
(valid for detecting both rising and falling edges)
Edge detection vectored interrupt input With noise elimination
(detection edge is selectable)
INT0/P10 can select noise elimination circuit. Asynch
Rising edge detection testable input
Parallel falling edge detection testable input
Ceramic/crystal resonator connection for main system
clock oscillation. If using an external clock, input signal to X1
and input inverted phase to X2.
Crystal resonator connection for subsystem clock oscillation.
If using an external clock, input signal to XT1 and input inverted
phase to XT2. XT1 can be used as a 1-bit (test) input.
System reset input (low-level active)
Mode selection for program memory (PROM) write/verify
Programmable power supply voltage applied for program
memory (PROM) write/verify.
For normal operation, connect directly to V
Apply +12.5 V for PROM write/verify.
Positive power supply
Ground potential
Function
circuit/asynch is selectable
Asynch
DD
.
DD
pin during normal operation.
after reset
Status
Input
Input
Input
Input
Input
Input
Input
—
—
—
—
—
—
PD75P3116
I/O circuit
type
<M>-C
<B>-C
<B>-C
<F>-A
<F>-B
<F>-A
<F>-A
<B>
<B>
M-E
E-B
E-B
—
—
—
—
—
Note 1