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PCA9555PWRE4 Datasheet(PDF) 3 Page - Texas Instruments |
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PCA9555PWRE4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page PCA9555 www.ti.com ......................................................................................................................................................... SCPS131E – AUGUST 2005 – REVISED MAY 2008 TERMINAL FUNCTIONS NO. SOIC (D), SSOP (DB), NAME DESCRIPTION QSOP (DBQ), QFN (RGE) TSSOP (PW), AND TVSOP (DGV) 1 22 INT Interrupt output. Connect to VCC through a pullup resistor. 2 23 A1 Address input 1. Connect directly to VCC or ground. 3 24 A2 Address input 2. Connect directly to VCC or ground. 4 1 P00 P-port input/output. Push-pull design structure. 5 2 P01 P-port input/output. Push-pull design structure. 6 3 P02 P-port input/output. Push-pull design structure. 7 4 P03 P-port input/output. Push-pull design structure. 8 5 P04 P-port input/output. Push-pull design structure. 9 6 P05 P-port input/output. Push-pull design structure. 10 7 P06 P-port input/output. Push-pull design structure. 11 8 P07 P-port input/output. Push-pull design structure. 12 9 GND Ground 13 10 P10 P-port input/output. Push-pull design structure. 14 11 P11 P-port input/output. Push-pull design structure. 15 12 P12 P-port input/output. Push-pull design structure. 16 13 P13 P-port input/output. Push-pull design structure. 17 14 P14 P-port input/output. Push-pull design structure. 18 15 P15 P-port input/output. Push-pull design structure. 19 16 P16 P-port input/output. Push-pull design structure. 20 17 P17 P-port input/output. Push-pull design structure. 21 18 A0 Address input 0. Connect directly to VCC or ground. 22 19 SCL Serial clock bus. Connect to VCC through a pullup resistor. 23 20 SDA Serial data bus. Connect to VCC through a pullup resistor. 24 21 VCC Supply voltage Copyright © 2005–2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): PCA9555 |
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