KF2 datasheet(5/29 Pages) ETC

5 / 29 page

©NEC Electronics Corporation 2004

78K0/KF2

ZUD-CC-04-0129-E

Data Published Oct 2004 N CP(K)

Table(2/2)

PIN NAME

Function

P20- P27

/ ANI0- ANI7

I/O ports

A/D converter analog input

P30/INTP1

P31/INTP2

P32/INTP3

I/O port

External interrupt request input with specifiable valid edges

I/O port

External count clock input to 8-bit timer/event counter 51(TM51)

8-bit timer/event counter 51output(TM51)

P33

/TI51

/TO51

/INTP4

External interrupt request input with specifiable valid edges

P40 - P47

I/O port

P50 – P57

I/O port

I/O port (N-ch Open drain)

P60

/SCL0

Clock input/ output for serial interface (IIC0)

I/O port (N-ch Open drain)

P61

/SDA0

Serial data input/ output for serial interface (IIC0)

I/O port (N-ch Open drain)

P62

/EXSCL0

External clock input for serial interface (IIC0)

P63

I/O port (N-ch Open drain)

P64 – P67

I/O ports

P70 – P77

/KR0 – KR7

Key interrupt input

I/O port

External interrupt request input with specifiable valid edges

P120

/INTP0

/EXLVI

Reference voltage input for Low voltage Indicator

I/O port (An external oscillation circuit is not used)

P121

/X1

Connecting resonator for main system clock oscillation

I/O port (An external oscillation circuit is not used)

Connecting resonator for main system clock oscillation

P122

/X2

/EXCLK

External clock input for main system clock

I/O port (An external oscillation circuit is not used)

P123

/XT1

Connecting resonator for subsystem clock oscillation

I/O port (An external oscillation circuit is not used)

Connecting resonator for subsystem clock oscillation

P124

/XT2

/EXCLKS

External clock input for subsystem clock

P130

Output port

I/O port

Clock output

P140

/PCL

/INTP6

External interrupt request input with specifiable valid edge

I/O port

Buzzer output

External interrupt request input with specifiable valid edge

P141

/BUZ

/ INTP7

/ BUSY0

Busy signal input for serial interface (AUTOCSI)

I/O port

P142

/SCKA0

Clock input/ output for serial interface (AUTOCSI)

I/O port

P143

/SIA0

Serial data input to serial interface (AUTOCSI)

I/O port

P144

/SOA0

Serial data output form serial interface (AUTOCSI)

I/O port

P145

/STB0

Strobe signal input to serial interface (AUTOCSI)

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