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UPD178002 Datasheet(PDF) 14 Page - NEC

Part # UPD178002
Description  8-BIT SINGLE-CHIP MICROCONTROLLERS
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD178002 Datasheet(HTML) 14 Page - NEC

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µPD178002, 178003
Data Sheet U12628EJ3V0DS00
5. PERIPHERAL HARDWARE FUNCTION FEATURES
5.1 Ports
The following four types of I/O ports are available.
• CMOS input (P00):
1
• CMOS input/output (P01 to P06, port 1 to port 5, P64 to P67, port 12):
54
• N-ch open-drain input/output (P60 to P63):
4
• N-ch open-drain output (Port 13):
3
Total:
62
Table 5-1. Port Functions
Name
Pin Name
Function
Port 0
P00
Input only
P01 to P06
Input/output port. Input/output can be specified in 1-bit units.
Port 1
P10 to P15
Input/output port. Input/output can be specified in 1-bit units.
Port 2
P20 to P27
Input/output port. Input/output can be specified in 1-bit units.
Port 3
P30 to P37
Input/output port. Input/output can be specified in 1-bit units.
Port 4
P40 to P47
Input/output port. Input/output can be specified in 8-bit units.
The test flag (KRIF) is set to 1 by falling edge detection.
Port 5
P50 to P57
Input/output port. Input/output can be specified in 1-bit units.
Port 6
P60 to P63
N-ch open-drain input/output port. Input/output can be specified in 1-bit units.
LEDs can be driven directly.
P64 to P67
Input/output port. Input/output can be specified in 1-bit units.
Port 12
P120 to P125 Input/output port. Input/output can be specified in 1-bit units.
Port 13
P132 to P134 N-ch open-drain output port.


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