UPD75206CW NEC [NEC], UPD75206CW Datasheet - Page 7

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UPD75206CW

Manufacturer Part Number
UPD75206CW
Description
4-BIT SINGLE-CHIP MICROCOMPUTER
Manufacturer
NEC [NEC]
Datasheet

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3. PIN FUNCTIONS
3.1
* Schmitt trigger inputs are circled.
P40 to P43
P50 to P53
P60 to P63
Pin Name
P30–P33
PH0
PH1
PH2
PH3
P00
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
PORT PINS
Input/output
Input/output
Output
output
output
output
output
output
Input/
Input/
Input/
Input/
Input/
Input
Input
Input
I/O
Dual-
Function Pin
INT4
INT0
INT1
INT2
BUZ
SCK
T13
T12
T11
T10
SO
TI0
–––
–––
–––
–––
–––
–––
–––
SI
4-bit input/output port (PORT2).
4-bit input port (PORT0).
4-bit input port (PORT1).
Programmable 4-bit input/ output port (PORT3).
Input/output specifiable in 1-bit units.
4-bit input/output port (PORT4).
LED direct drive capability.
4-bit input/output port (PORT5).
LED direct drive capability.
Programmable 4-bit input/output port (PORT6).
Input/output specifiable in 1-bit units.
On-chip pull-down resistor available (mask
option). Suitable for key input.
4-bit P-ch open-drain, high-dielectric, high-current
output port (PORTH).
LED direct drive capability. On-chip pull-down
resistor available (mask option).
Noise removing function available
Noise removing function available
Function
8-Bit
I/O
Low level
(with an on-
chip pull-
down resistor)
or high
impedance.
After Reset
Input
Input
Input
Input
Input
Input
Input
Input / Output
Circuit Type *1
PD75206
G
B
F
B
B
E
E
E
E
V
I
7

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