AS1120 datasheet(2/13 Pages) AMSCO

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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

TEST

Test pin. This pin must be tied to pin VDD.

DATAOUT

Serial Data Output

CLKIN

Shift Register Clock

LOAD

Load Strobe from Shift Register to Latch

DATAIN

Serial Data Input

BPLIN

Backplane Input

BPLOUT

Backplane Output

RESETN

Active-Low Asynchronous Reset

VSSOSC

Internal Oscillator Power Ground

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

VSS

Power Ground

VDD

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

N/C

LCD42

LCD43

LCD44

LCD45

TEST

DATAOUT

CLKIN

LOAD

DATAIN

BPLIN

BPLOUT

RESETN

VSSOSC

OSC

N/C

47 LCD26

46 LCD25

45 LCD24

44 LCD23

43 VDD

42 VSS

41 LCD22

40 LCD21

39 LCD20

38 LCD19

37 LCD18

36 LCD17

35 LCD16

34 LCD15

33 N/C

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