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PCA9554DB Datasheet(PDF) 4 Page - NXP Semiconductors |
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PCA9554DB Datasheet(HTML) 4 Page - NXP Semiconductors |
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4 / 20 page  Philips Semiconductors Product data sheet PCA9554/PCA9554A 8-bit I2C and SMBus I/O port with interrupt 2004 Sep 30 4 BLOCK DIAGRAM POWER-ON RESET INPUT FILTER I2C/SMBUS CONTROL INPUT/ OUTPUT PORTS WRITE pulse READ pulse A0 A1 A2 SCL SDA VDD VSS 8-BIT I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 SU01411 NOTE: ALL I/Os ARE SET TO INPUTS AT RESET VCC INT LP FILTER Figure 3. Block diagram |
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