PCF8591 Datasheet, PDF (15/28 Pages) NXP Semiconductors – 8-bit A/D and D/A converter

Philips Semiconductors
8-bit A/D and D/A converter
Product specification
PCF8591
8.5 I²C-bus protocol
After a start condition a valid hardware address has to be sent to a PCF8591 device. The read/write bit defines the
direction of the following single or multiple byte data transfer. For the format and the timing of the start condition (S), the
stop condition (P) and the acknowledge bit (A) refer to the I²C-bus characteristics. In the write mode a data transfer is
terminated by sending either a stop condition or the start condition of the next data transfer.
Fig.15 Bus protocol for write mode, D/A conversion.
Fig.16 Bus protocol for read mode, A/D conversion.
1998 Jul 02
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