UT912D

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2

www.unisonic.com.tw

QW-R502-044,A

PIN CONFIGURATION

1

2

3

4

5

6

7

14

13

12

11

10

9

8

OSC1

OSC2

A7

A0

A1

A2

A3

A4

A5

A6

1

2

3

4

5

6

7

14

13

12

11

10

9

8

NC

OSC1

OSC2

DIN

D11

A0

A1

A2

A3

A4

A5

A6

DIP-18

15

16

D10

A7

SOP-20

15

16

17

18

DIN

D11

D10

D9

D8

NC

D8

D9

17

18

19

20

PIN DESCRIPTION

PIN NAME

I/O

INTERNAL CONNECTION

DESCRIPTION

A0 ~ A7

I

NMOS Transmission Gate

Input pins for address A0 ~ A7 setting, these pins can be

D8 ~ D11

O

CMOS OUT

Output data pins, power-on state is low.

DIN

I

CMOS IN

Serial data input pin

O

CMOS OUT

Valid transmission, active high

OSC1

I

Oscillator

Oscillator input pin

OSC2

O

Oscillator

Oscillator output pin

Negative power supply, (GND)

Positive power supply

BLOCK DIAGRAM

Oscillator

Buffer

Sync . Detector

Comparator

Data Detector

Transmission Gate Circuit

Comparator

Divider

Data Shift

Register

Latch Circuit

Control Logic

Buffer

Address

DIN

OSC 2

OSC1

Data