UTXS0102

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 13

www.unisonic.com.tw

QW-R140-034.b

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PIN CONFIGURATION

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PIN DESCRIPTION

PIN NO.

PIN NAME

I/O

DESCRIPTION

1

B2

I/O

Input/output B2. Referenced to VCCB

2

GND

Ground

3

VCCA

A-Port supply voltage 1.65V ≤ VCCA ≤ 3.6V, VCCA ≤ VCCB

4

A2

I/O

Input/output A2. Referenced to VCCA

5

A1

I/O

Input/output A1. Referenced to VCCA

6

OE

I

3-state output-mode enable. Pull OE low to place all outputs in 3-state

mode. Referenced to VCCA

7

VCCB

B-Port supply voltage 2.3V ≤ VCCB ≤ 5.5V

8

B1

I/O

Input/output B1. Referenced to VCCB

Note: I=Input, O=Output, I/O=Input and Output.

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FUNCTION TABLE

SUPPLY VOLTAGE

INPUT

INPUT/OUTPUT

VCCA

VCCB

OE

An

Bn

1.65V ~ VCCB

2.3V ~ 5.5V

L

Z

Z

1.65V ~ VCCB

2.3V ~ 5.5V

H

Input or Output

Output or Input

GND

GND

X

Z

Z

Notes: 1. H = High voltage level；L = Low voltage level；X = Don’t care；Z = high-impedance OFF-state

2. When either VCCA or VCCB is at GND level, the device goes into power-down mode.