Pin Description

Pin Name

I/O

Internal

Connection

Description

A0~A11

I

TRANSMISSION

GATE

Input pins for address A0~A11 setting

They can be externally set to VDD, VSS, or left open.

D8~D11

O

CMOS OUT

Output data pins

DIN

I

CMOS IN

Serial data input pin

VT

O

CMOS OUT

Valid transmission, active high

OSC1

I

OSCILLATOR

Oscillator input pin

OSC2

O

OSCILLATOR

Oscillator output pin

VSS

¾¾

Negative power supply, ground

VDD

¾¾

Positive power supply

Approximate internal connections

Absolute Maximum Ratings

Supply Voltage...............................-0.3V to 13V

Storage Temperature.................-50°Cto125°C

Operating Temperature ..............-20°Cto75°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-

mum Ratings² may cause substantial damage to the device. Functional operation of this device

at other conditions beyond those listed in the specification is not implied and prolonged expo-

sure to extreme conditions may affect device reliability.

4

December 13, 1999

T R AN S M I SSI O N

GAT E

CM O S I N

OS C I L L AT O R

OS C 2

CM O S O UT

OS C 1

EN