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AS1106WL Datasheet(PDF) 2 Page - ams AG |
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AS1106WL Datasheet(HTML) 2 Page - ams AG |
2 / 20 page www.austriamicrosystems.com Revision 2.24 2 - 20 AS1106, AS1107 Data Sheet - Pi nout 4 Pinout Pin Assignments Figure 2. DIP and SO Pin Assignments (Top View) Pin Descriptions Table 1. Pin Descriptions Pin Name Pin Number Description DIN 1 Serial-Data Input. Data is loaded into the internal 16-bit shift register on the rising edge of pin CLK. DIG 0:DIG 7 2, 3, 5, 6, 7, 8, 10, 11 Digit Drive Lines. 8 Eight-digit drive lines that sink current from the display common cathode. The AS1106 pulls the digit outputs to VDD when turned off. The AS1107 digit drivers are high-impedance when turned off. GND 4, 9 Ground. Both GND pins must be connected. LOAD/CSN 12 Load-Data Input (AS1106 only). The last 16 bits of serial data are latched on the rising edge of this pin. 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. CLK 13 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 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. SEG A:SEG G, SEG DP 14, 15, 16, 17, 20, 21, 22, 23 Seven Segment and Decimal Point Drive Lines. 8 seven-segment drives 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. ISET 18 Set Segment Current. Connect to VDD through RSET to set the peak segment current (see Selecting RSET Resistor Value and Using External Drivers on page 14). VDD 19 Positive Supply Voltage. Connect to +2.7 to +5.5V supply. DOUT 24 Serial-Data Output. The data into pin DIN is valid at pin DOUT 16.5 clock cycles later. This pin is used to daisy-chain several AS1106/AS1107 devices and is never high-impedance. 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 DOUT SEG D SEG DP SEG E SEG C VDD ISET SEG G SEG B SEG F SEG A CLK DIN DIG 0 DIG 4 GND DIG 6 DIG 2 DIG 3 DIG 7 GND DIG 5 DIG 1 LOAD/CSN |
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