Data Sheet

ManualsBrandsSparkfun Electronics ManualsInfrared & Light SensorsSparkFun Proximity Sensor Breakout Board (Qwiic)

VCNL4040

www.vishay.com

Vishay Semiconductors

Rev. 1.4, 02-Mar-15

Document Number: 84274

For technical questions, contact: sensorstechsupport@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

PARAMETER TIMING INFORMATION

Fig. 2 - I

C Bus Timing for Sending Word Command Format

Fig. 3 - I

C Bus Timing for Receiving Word Command Format

SA6 SA5 SA4 SA3 SA2

SA1SA7

I2CBus Slave Address Byte

Start by

Master

ACK by

SA6 SA5 SA4 SA3 SA2

SA0

SA7

Command Code

SA1

ACK by

SA7

SA6 SA5 SA4 SA3 SA2 SA1

SA0

ACK by

SA7

SA6 SA5 SA4 SA3 SA2 SA1

SA0

Stop by

Master

ACK by

Data Byte Low Data Byte High

C bus

CLOCK

(SCLK)

C bus

DATA

(SDAT)

C bus

CLOCK

(SCLK)

C bus

DATA

(SDAT)

VCNL4040

I2CBus

CLOCK

(SCLK)

I2CBus

DATA

(SDAT)

SA6 SA5 SA4 SA3 SA2

SA1SA7

I2CBus Slave Address Byte

Start by

Master

ACK by

SA6 SA5 SA4 SA3 SA2

SA0

SA7

Command Code

SA1

ACK by

SA7

SA6 SA5 SA4 SA3 SA2 SA1

SA0

Stop by

Master

ACK by

Master

Data Byte High

I2CBus

CLOCK

(SCLK)

I2CBus

DATA

(SDAT)

I2CBus

CLOCK

(SCLK)

I2CBus

DATA

(SDAT)

SA6 SA5 SA4 SA3 SA2

I2CBus Slave Address Byte

Start by

Master

ACK by

SA6 SA5 SA4 SA3 SA2

SA0

SA7

Data Byte Low

SA1

ACK by

Master

SA1

SA7

VCNL4040