03/07/21

3

LED Display and Hold

Pin Description

Pin No

Symbol

Type

Description

1

NC

-

No connected.

2

NC

-

No connected.

3

TEST

I

Pull high to V+ all segments will be activated.

4

OS3

-

Crystal oscillator connection.

5

HOLD

I

Hold pin, pull high to hold display

6

OS2

-

Crystal oscillator connection

7

OS1

-

Crystal oscillator connection

8

V+

-

Positive supply voltage.

9

D1

O

LED segment line.

10

C1

O

LED segment line.

11

B1

O

LED segment line.

12

A1

O

LED segment line.

13

F1

O

LED segment line.

14

G1

O

LED segment line.

15

E1

O

LED segment line.

16

D2

O

LED segment line.

17

C2

O

LED segment line.

18

B2

O

LED segment line.

19

A2

O

LED segment line.

20

F2

O

LED segment line.

21

E2

O

LED segment line.

22

D3

O

LED segment line.

23

B3

O

LED segment line.

24

F3

O

LED segment line.

25

E3

O

LED segment line.

26

AB4

O

LED segment line.

27

POL

O

LED segment line.

28

GND

-

Power Ground

29

G3

O

LED segment line.

30

A3

O

LED segment line.

31

C3

O

LED segment line.

32

G2

O

LED segment line.

33

NC

-

No connected.

34

V-

-

Negative supply voltage.

35

INT

O

Integration cycle output.

36

BUFF

O

Integration resistor connection for buffer output.

37

A.Z

-

Auto-zero capacitor connection.

38

IN LO

-

Low analog input signal connection.

39

IN HI

-

High analog input signal connection.

40

COMMON

-

Set the common-mode voltage for the system.

41

CREF-

-

Negative capacitor connection for on-chip DC-DC converter.

42

CREF+

-

Positive capacitor connection for on-chip DC-DC converter.

43

REF LO

I

Low differential reference input connection.

44

REF HI

I

High differential reference input connection.