Data Sheet

5
Parameter Measurement Information
SDA
SCL
StopStart
SCL
ACK
t
(LOWMEXT)
t
(LOWMEXT)
t
(LOWSEXT)
SCL
ACK
t
(LOWMEXT)
P
t
(SUSTO)
t
(SUDAT)
t
(HDDAT)
t
(BUF)
V
IH
V
IL
t
(R)
t
(LOW)
t
(HIGH)
t
(F)
t
(HDSTA)
V
IH
V
IL
P
Stop
Condition
SS
Start
Condition
t
(SUSTA)
SDA
SCL
Figure 1. Timing Diagrams
A0A1A2A3A4A5A6 D1D2D3D4D5D6D7 D0R/W
Start by
Master
ACK by
APDS-9301
Stop by
Master
ACK by
APDS-9301
SDA
Frame 1 I
2
C Slave Address Byte Frame 2 Command Byte
SCL
1 9 1 9
Figure 2. Example Timing Diagram for I
2
C Send Byte Format
Figure 3. Example Timing Diagram for I
2
C Receive Byte Format
A0A1A2A3A4A5A6 D1D2D3D4D5D6D7 D0R/W
Start by
Master
ACK by
APDS-9301
Stop by
Master
NACK by
Master
SDA
Frame 1 I
2
C Slave Address Byte Frame 2 Data Byte From APDS-9301
SCL
1 9 1 9