AS1106 데이터 시트보기 (PDF) - austriamicrosystems AG

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AS1106

8-Digit LED Display Drivers

austriamicrosystems AG 

AS1106, AS1107

Data Sheet

9 Pinout and Packaging

Pin Assignments

Figure 14. DIP and SO Pin Assignments (Top View)

DIN 1

DIG 0 2

DIG 4 3

GND 4

DIG 6 5

DIG 2 6

DIG 3 7

DIG 7 8

GND 9

DIG 5 10

DIG 1 11

LOAD/CSN 12

austriamicrosystems

Pin Assignments

24 DOUT

23 SEG D

22 SEG DP

21 SEG E

20 SEG C

19 VDD

18 ISET

17 SEG G

16 SEG B

15 SEG F

14 SEG A

13 CLK

Pin Descriptions

Table 24. Pin Descriptions

Pin

Name

DIN

DIG 0:DIG 7

GND

LOAD/CSN

CLK

SEG A:SEG G, SEG DP

ISET

VDD

DOUT

Pin

Number

Description

1

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

rising edge of pin CLK.

Digit Drive Lines. 8 Eight-digit drive lines that sink current from the display

2, 3, 5, 6,

7, 8, 10, 11

common cathode. The AS1106 pulls the digit outputs to VDD when turned

off. The AS1107 digit drivers are high-impedance when turned off.

4, 9 Ground. Both GND pins must be connected.

Load-Data Input (AS1106 only). The last 16 bits of serial data are latched

on the rising edge of this pin.

12

Chip-Select Input (AS1107 or AS1106 SPI-enabled only). 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.

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

13

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

on the falling edge of this pin. On the AS1107 or AS1106 SPI-enabled, the

CLK input is active only while LOAD/CSN is low.

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

14, 15, 16,

17, 20, 21,

22, 23

and decimal point drive that source current to the display. On the AS1106,

when a segment driver is turned off it is pulled to GND. The AS1107

segment drivers are high-impedance when turned off.

Set Segment Current. Connect to VDD through RSET to set the peak

18

segment current (see Selecting RSET Resistor Value and Using External

Drivers on page 13).

19

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

Serial-Data Output. The data into pin DIN is valid at pin DOUT 16.5 clock

24

cycles later. This pin is used to daisy-chain several AS1106/AS1107 devices

and is never high-impedance.

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Revision 2.2

16 - 20

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