UPD75216ACW

Manufacturer Part NumberUPD75216ACW
Description4-BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC
UPD75216ACW datasheet
 


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3.2
NON-PORT PINS
Dual-
Pin Name
I/O
Function Pin
Output
T0 to T9
–––
T10/S15 to
PH3 to PH0
T13/S12
T14/S11,
–––
T15/S10
S9
S0 to S8
PPO
Output
–––
TI0
Input
P13
SCK
Input/output
P01
SO
Input/output
P02
SI
Input
P03
INT4
Input
P00
Input
INT0
P10
INT1
P11
INT2
Input
P12
Input/output
BUZ
P23
Input
X1, X2
–––
XT1
Input
–––
XT2
–––
RESET
Input
–––
V
–––
PRE
–––
V
LOAD
–––
V
DD
–––
V
SS
* Schmitt-triggered inputs are circled.
10
Function
FIP controller/
Digit output high-voltage high-current
driver output
output.
pins.
Digit/segment output dual-function
Pull-down
high-voltage high-current output.
resistor can be
Extra pins can be used as PORTH.
incorporated in
Digit/segment output dual-function
bit-wise (mask
high-voltage high-current output.
option).
Static output also possible.
Segment output high voltage output.
Static output also possible.
Segment high-voltage output.
Timer/pulse generator pulse output.
External event pulse input for timer/event counter.
Serial clock input/output.
Serial data input pin or serial data input/output.
Serial data input or normal input.
Edge-detected vectored interrupt input (rising and falling
edge detection).
Edge-detected vectored interrupt input with noise
elimination function (detection edge selection possible).
Edge-detected testable input (rising edge detection).
Fixed frequency output (for buzzer or system clock
trimming).
Crystal/ceramic connect pin for main system clock
oscillation.
External clock input to X1 and its inverted clock input to
X2.
Crystal connect pin for subsystem clock oscillation.
External clock input to XT1 and XT2 open.
System reset input (low level active).
FIP controller/driver output buffer power supply.
FIP controller/driver pull-down resistor connect pin.
Positive power supply.
GND potential.
PD75216A
Input / Output
After Reset
Circuit Type *
Low level
I
(With an on-
chip pull-
down
resistor) or
high
impedance
(without a
pull-down
resistor)
High
D
impedance
B
Input
F
Input
G
Input
B
B
B
B
Input
E
B
I
I