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PCA9544APWT Datasheet(PDF) 3 Page - Texas Instruments |
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PCA9544APWT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page 20 6 8 9 10 1 2 3 4 5 15 14 13 12 11 19 A2 INT0 SD0 SC0 INT1 INT SC3 SD3 INT3 SC2 RGW PACKAGE (TOP VIEW) 18 17 16 7 DGV, DW, OR PW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 A0 A1 A2 INT0 SD0 SC0 INT1 SD1 SC1 GND V CC SDA SCL INT SC3 SD3 INT3 SC2 SD2 INT2 SDA INT3 RGY PACKAGE (TOP VIEW) 2 A1 19 3 A2 18 SCL 4 INT0 17 INT 5 SD0 16 SC3 6 SC0 15 SD3 7 INT1 14 8 SD1 13 SC2 9 SC1 12 SD2 1 10 20 11 GQN OR ZQN PACKAGE (TOP VIEW) 1 2 3 4 A B C D E PCA9544A www.ti.com SCPS146E – OCTOBER 2005 – REVISED JUNE 2014 6 Pin Configuration and Functions Pin Functions PIN NO. NAME FUNCTION DGV, DW, PW, RGW GQN, ZQN AND RGY 1 19 A2 A0 Address input 0. Connect directly to VCC or ground. 2 20 A1 A1 Address input 1. Connect directly to VCC or ground. 3 1 B3 A2 Address input 2. Connect directly to VCC or ground. 4 2 B1 INT0 Active-low interrupt input 0. Connect to VDPU0 (1) through a pull-up resistor. 5 3 C2 SD0 Serial data 0. Connect to VDPU0 (1) through a pull-up resistor. 6 4 C1 SC0 Serial clock 0. Connect to VDPU0 (1) through a pull-up resistor. 7 5 D3 INT1 Active-low interrupt input 1. Connect to VDPU1 (1) through a pull-up resistor. 8 6 D1 SD1 Serial data 1. Connect to VDPU1 (1) through a pull-up resistor. 9 7 E2 SC1 Serial clock 1. Connect to VDPU1 (1) through a pull-up resistor. 10 8 E1 GND Ground 11 9 E3 INT2 Active-low interrupt input 2. Connect to VDPU2 (1) through a pull-up resistor. 12 10 E4 SD2 Serial data 2. Connect to VDPU2 (1) through a pull-up resistor. 13 11 D2 SC2 Serial clock 2. Connect to VDPU2 (1) through a pull-up resistor. 14 12 D4 INT3 Active-low interrupt input 3. Connect to VDPU3 (1) through a pull-up resistor. 15 13 C3 SD3 Serial data 3. Connect to VDPU3 (1) through a pull-up resistor. 16 14 C4 SC3 Serial clock 3. Connect to VDPU3 (1) through a pull-up resistor. 17 15 B2 INT Active-low interrupt output. Connect to VDPUM (1) through a pull-up resistor. 18 16 B4 SCL Serial clock line. Connect to VDPUM (1) through a pull-up resistor. 19 17 A4 SDA Serial data line. Connect to VDPUM (1) through a pull-up resistor. 20 18 A3 VCC Supply power (1) VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the master I 2C reference voltage while V DPU0-VDPU3 are the slave channel reference voltages. Copyright © 2005–2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: PCA9544A |
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