7513 datasheet(5/66 Pages) RENESAS

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

7513 Group

PIN DESCRIPTION

Table 1 Pin description (1)

VCC, VSS

Function

Name

Function except a port function

•LCD segment output pins

Power source

•Apply voltage of 2.2 V to 5.5 V to VCC, and 0 V to VSS.

VREF

AVSS

RESET

XIN

XOUT

VL1–VL3

C1, C2

COM0–COM3

SEG0–SEG17

P00/SEG26–

P07/SEG33

P10/SEG34–

P15/SEG39

P16, P17

P20 – P27

P30/SEG18 –

P37/SEG25

Analog refer-

ence voltage

Analog power

source

Reset input

Clock input

Clock output

LCD power

source

Charge-pump

capacitor pin

Common output

Segment output

I/O port P0

I/O port P1

I/O port P2

Output port P3

•Reference voltage input pin for A-D converter and D-A converter.

•GND input pin for A-D converter and D-A converter.

•Connect to VSS.

•Reset input pin for active “L”.

•Input and output pins for the main clock generating circuit.

•Connect a ceramic resonator or a quartz-crystal oscillator between the XIN and XOUT pins to set

the oscillation frequency.

•If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open.

•Input 0

≤ VL1 ≤ VL2 ≤ VL3 ≤ VCC voltage.

•Input 0 – VL3 voltage to LCD.

•External capacitor pins for a voltage multiplier (3 times) of LCD contorl.

•LCD common output pins.

•COM2 and COM3 are not used at 1/2 duty ratio.

•COM3 is not used at 1/3 duty ratio.

•LCD segment output pins.

•8-bit I/O port.

•CMOS compatible input level.