EM78P468NBQSSLASHNBQJ datasheet(10/82 Pages) EMC

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EM78P468N/L

8-Bit Microcontroller

•

Product Specification (V1.6) 12.31.2007

(This specification is subject to change without further notice)

5 Pin Description

Table 1 (a) Pin Description for Package of QFP64 and LQFP64

Symbol

Pin No.

Type

Function

P5.4/INT0

I/O

1-bit General purpose input/output pin/external interrupt.

INT0 interrupt source can be set to falling or rising edge by IOC71

Wakes up from sleep mode and idle mode when the pin status

changes.

P5.5/INT1

I/O

1-bit General purpose input/output pin/external interrupt.

Interrupt source is a falling edge signal.

Wakes up from sleep mode and idle mode when the pin status

changes.

P5.6/TCC

I/O

1-bit General purpose input/output pin/external counter input.

This pin works in normal/green/idle mode.

P5.7/IROUT

I/O

1-bit General purpose input/output pin/IR/PWM mode output pin.

This pin is capable of sinking 20mA/5V.

P6.0~P6.7

38~45

I/O

8-bit General purpose input/output pins.

Pull-high, pull-low and open drain function supported.

All pins can wake up from sleep and idle modes when the pin

status changes

COM3~0

17~20

LCD common output pin.

SEG0~SEG15

16~1

LCD segment output pin.

SEG16/P7.0

SEG23/P7.7

O/(I/O)

LCD segment output pin.

Can be shared with general purpose I/O pin

SEG24/P8.0

SEG30/P8.6

SEG31/P8.7

O/(I/O)

LCD segment output pin. Can be shared with general I/O pin.

For general purpose I/O use, can wake up from sleep mode and

idle mode when the pin status changes.

For general purpose I/O use, supports pull-high function.

Connect capacitors for LCD bias voltage.

VLCD2

One of LCD bias voltage.

VLCD3

One of LCD bias voltage.

/RESET

General-purpose Input only

Low active. If it remains at logic low, the device will be reset.

R-OSCI

In Crystal mode: crystal input

In RC mode: resistor pull high.

In PLL mode: connect 0.01

μF capacitance to GND

Connect 0.01

μF capacitor to GND and code option select PLL

mode when high oscillator is not use

OSCO

In Crystal mode: crystal input

In RC mode: instruction clock output

Xin

In Crystal mode: Input pin for sub-oscillator. Connect to a

32.768kHz crystal.

Xout

In Crystal mode: Connect to a 32.768kHz crystal.

In RC mode: instruction clock output

35~36

47~49

−

No connection

VDD

Power supply

GND

System ground pin

EM78P468NBQS/NBQJ 数据表(PDF) 10 Page - ELAN Microelectronics Corp

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