UPD75P216ACW NEC, UPD75P216ACW Datasheet - Page 6

• Manufacturer Part Number: UPD75P216ACW
• Description: 4-BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

1.2 NON-PORT PINS
Note 1. The circle ( ) indicates the Schmitt triggered input.
6
T10/S15 -
T13/S12
T14/S11,
T15/S10
MD0 - MD3
Pin name
NC
T0 - T9
RESET
X1, X2
S0 -S8
V
INT0
INT1
INT4
INT2
PPO
SCK
BUZ
XT1
XT2
TI0
SO
V
V
V
2. Pull-down resistor is incorporated.
3. Open-drain output
4. NC pin should be connected to V
S9
SI
LOAD
DD
SS
Note 4
PP
Output
output
Output
Input/
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
—
P30 - P33
P10/INT0
PH3-PH0
P10/V
Shared
P13
P01
P02
P03
P11
P00
P12
P23
pin
—
—
—
—
—
—
—
—
—
—
PP
Note 2
Note 3
Note 2
Pulse output by timer/pulse generator
External event pulse input to timer event counter
Input and output to serial clock
Serial data output or serial data input and output
Serial data input or normal input
Edge detection vectored interrupt input
(detected at both rising edge and falling edge)
Testable input for edge-detection
(detected at rising edge)
Fixed frequency output
(For buzzer or system clock trimming)
Crystal/ceramic resonator connection for main
system clock generation. When external clock
signal is used, it is applied to X1, and its reverse
phase signal is applied to X2.
Crystal connection for subsystem clock generation.
When external clock signal is used, it is applied to
XT1 and XT2 is open.
System reset input (low-level active)
Operation mode selection during the PROM
write/verify cycles.
+12.5 V is applied as the programming voltage
during the PROM write/verify cycles
Pull-down resistor connection of FIP
controller/driver
Positive power supply
+6 V is applied as the programming voltage during
the PROM write/verify cycles
GND potential
No connection
Edge detection vectored interrupt input with noise
elimination function (edge-detection selectable)
PRE
Used for digit output
Can withstand high voltage and high current
For digit/segment output
Can withstand high voltage and high current
Unused pin can be used as PORTH.
For digit/segment output
Can withstand high voltage and high current
Static output is possible.
For segment output
Can withstand high voltage
Static output is possible
For segment output
Can withstand high voltage
when sharing print board with the PD75216A.
Function
High
impedance
High
impedance
When reset
Low level
Low level
Input
Input
Input
Input
—
—
—
—
—
—
—
—
—
—
—
—
I/O circuit
type
PD75P216A
I - E
I - D
I - E
I - E
—
—
—
—
G
—
D
B
F
B
B
E
B
B
B
B
E
Note 1