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PCA9674D Datasheet(PDF) 10 Page - NXP Semiconductors |
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PCA9674D Datasheet(HTML) 10 Page - NXP Semiconductors |
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10 / 32 page  PCA9674_PCA9674A_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 15 June 2009 10 of 32 NXP Semiconductors PCA9674/74A Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt [1] The PCA9674A does not acknowledge when AD2, AD1, AD0 follows this configuration. 7.2 Software Reset Call, and device ID addresses Two other different addresses can be sent to the PCA9674/74A. • General Call address: allows to reset the PCA9674/74A through the I2C-bus upon reception of the right I2C-bus sequence. See Section 7.2.1 “Software Reset” for more information. • Device ID address: allows to read ID information from the device (manufacturer, part identification, revision). See Section 7.2.2 “Device ID (PCA9674/74A ID field)” for more information. SCL SCL SCL 1110000D0h SCL SCL SDA 1110001D2h SCL SDA SCL 1110010D4h SCL SDA SDA 1110011D6h SDA SCL SCL 1110100D8h SDA SCL SDA 1110101DAh SDA SDA SCL 1110110DCh SDA SDA SDA 1110111DEh SCL VSS VSS 1111000F0h SCL VSS VDD 1111001F2h SCL VDD VSS 1111010F4h SCL VDD VDD 1111011F6h SDA VSS VSS 1111100-[1] SDA VSS VDD 1111101FAh SDA VDD VSS 1111110FCh SDA VDD VDD 1111111FEh SCL VSS SCL 0000000-[1] SCL VSS SDA 000000102h SCL VDD SCL 000001004h SCL VDD SDA 000001106h SDA VSS SCL 000010008h SDA VSS SDA 00001010Ah SDA VDD SCL 00001100Ch SDA VDD SDA 00001110Eh Table 6. PCA9674A address map …continued AD2 AD1 AD0 A6 A5 A4 A3 A2 A1 A0 Address Fig 8. General Call address 0 002aac115 0 0 0 0 0 0 0 R/W |
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