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AS1120

Datasheet - P i n o u t and Pa ckag ing

4 Pinout and Packaging

Pin Assignments and Markings

Figure 2. Pin Assignments (Top View) and Markings

Pin Descriptions

Table 1. Pin Descriptions

Pin Number

Pin Name

Description

1, 16, 32, 33, 48, 49

N/C

Not Connected

2:5

LCD42:LCD45

LCD Output Segments 42:45

6

TEST

7

DATAOUT

Serial Data Output

8

CLKIN

Shift Register Clock

9

LOAD

Load Strobe from Shift Register to Latch

10

DATAIN

Serial Data Input

11

BPLIN

Backplane Input

12

BPLOUT

Backplane Output

13

RESETN

Active-Low Asynchronous Reset

14

Internal Oscillator Power Ground

15

OSC

Oscillator Pad.

a). Internal clock (see page 8)

b) External clock; tied to VSSOSC

17:31

LCD0:LCD14

LCD Output Segments 0:14

34:41

LCD15:LCD22

LCD Output Segments 15:22

42

Power Ground

43

Positive Power Supply

44:47

LCD23:LCD26

LCD Output Segments 23:26

50:64

LCD27:LCD41

LCD Output Segments 27:41

AS1120

48 N/C

1

N/C

2

LCD42

3

LCD43

4

LCD44

5

LCD45

6

TEST

7

DATAOUT

8

CLKIN

9

LOAD

10

DATAIN

11

BPLIN

12

BPLOUT

13

RESETN

14

15

OSC

16

N/C

47 LCD26

46 LCD25

45 LCD24

44 LCD23

41 LCD22

40 LCD21

39 LCD20

38 LCD19

37 LCD18

36 LCD17

35 LCD16

34 LCD15

33 N/C