7630 datasheet(20/238 Pages) RENESAS

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7630 Group User’s Manual

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PIN DESCRIPTION

Table 1: Pin description

Name

Input/Output

Description

VCC, VSS

Power source

voltage

Power supply pins; apply 4.0 to 5.5 V to VCC and 0 V to VSS

AVSS

Analog power

source voltage

Ground pin for A-D converter. Connect to VSS

RESET

Reset input

Input

Reset pin. This pin must be kept at “L” level for more than 2

µs, to enter the reset state.

If the crystal or ceramic resonator requires more time to stabilize, extend the “L” level

period.

XIN

Clock input

Input

Input and output pins of the internal clock generating circuit. Connect a ceramic or

quartz–crystal resonator between the XIN and XOUT pins. When an external clock

source is used, connect it to XIN and leave XOUT open.

XOUT

Clock output

Output

VREF

Reference volt-

age input

Input

Reference voltage input pin for A-D converter

P00/AN0—

P07/AN7

I/O port P0

I/O

CMOS I/O ports or analog input ports

P11/INT0

Input

CMOS input port or external interrupt input port. The active edge (rising or falling) of

external interrupts can be selected. This pin will be used as VPP pin during PROM pro-

gramming of One Time PROM Versions.

P12/INT1

CMOS I/O port or external interrupt input port. The active edge (rising or falling) of

external interrupts can be selected.

P13/TX0

CMOS I/O port or input pin used in the bi-phase counter mode

P14/CNTR0

I/O port P1

I/O

CMOS I/O port or timer X input pin used for the event counter, pulse width measure-

ment and bi-phase counter mode

P15/CNTR1

CMOS I/O port or timer Y input pin used for the event counter, pulse width and pulse

period measurement mode

P16/PWM

CMOS I/O port or PWM output pin used in the PWM mode of timers 2 and 3

P17

CMOS I/O port

P20/SIN

P21/SOUT

P22/SCLK

P23/SRDY

CMOS I/O ports or clock synchronous serial I/O pins

P24/URXD

P25/UTXD

P26/URTS

P27/UCTS

CMOS I/O ports or asynchronous serial I/O pins

P30

CMOS I/O port

P31/CTX

CMOS I/O port or CAN transmit data pin

P32/CRX

CMOS I/O port or CAN receive data pin

P33—P34

CMOS I/O port

P40/KW0—

P47/KW7

I/O port P4

I/O

CMOS I/O ports. These ports can be used for key-on wake-up when configured as

inputs.

I/O port P2

I/O

I/O port P3

I/O

PIN DESCRIPTION

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