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Revision 1.04

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AS1116

Datasheet - P i n o u t

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View)

Pin Descriptions

Table 1. Pin Descriptions

Pin

Name

QSOP-24

TQFN(4x4)-24

Description

SDI

122

Serial-Data Input. Data is loaded into the internal 16-bit shift register

on the rising edge of pin SCL.

DIG0:DIG7

2-5, 7-10

1, 2, 4, 5, 7, 8,

23, 24

Digit Drive Lines. Eight digit drive lines that sink current from the

display cathode.

GND

63

Ground.

LD

11

9

Load. Serial Data is loaded into the shift register while this pin is low.

The last 16 bits of serial data are latched on the rising edge of this pin.

N/C

12

6

Not Connected.

13

10

Value and Using External Drivers on page 15).

SCL

14

11

Serial-Clock Input. 10MHz maximum rate. Data is shifted into the

internal shift register on the rising edge of this pin. Data is clocked out of

pin SDO on the rising edge of this pin.

SEGA:SEG

G, SEGDP

15-18,

20-23

12-15,

17-20

Seven Segment and Decimal Point Drive Lines. 8 seven-segment

drives and decimal point drive that source current to the display.

19

16

Positive Supply Voltage. Connect to +2.7 to +5.5V supply.

SDO

24

21

Serial-Data Output. The data into pin SDI is valid at pin SDO 16 clock

cycles later. This pin is used to daisy-chain several devices and is never

high-impedance.

AS1116

SEG E

8

18

SEGB

14

DIG2

1

GND

3

AS1116

DIG5

5

10

12

VDD

16

SEGC

17

SEGG

15

SEGF

13

DIG3

2

DIG4

4

N/C

6

11

9

7

23

21

19

20

22

24