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MPR121QR2
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
MPR121
Sensors
22
Freescale Semiconductor, Inc.
6.4
Read and Write Operation Format
< Single Byte Read >
Master
ST
Device Address[
6:0]
W
Regist
er Address[7:
0]
SR
Device Ad
dress[6:0]
R
NAK
SP
Slave
AK
AK
AK
Data[7:
0]
< Multiple Byte Read >
Master
ST
Device Address[
6:0]
W
Register Addr
ess[7:0]
SR
Device Addres
s[6:0]
R
AK
Slave
AK
AK
AK
Data[7:0]
Master
AK
AK
NAK
SP
Slave
Data[7:0]
Data[7:0]
Data[7:0]
< Single Byte Write >
Master
ST
Device Addres
s[6:0]
W
Register Ad
dress[7:0]
Data[7:0]
SP
Slave
AK
AK
AK
Legend
ST: Start Condition
SP: Stop Conditi
on
NAK: No Acknowledge
W: Write = 0
SR: Repeated Start Condition
AK: Acknowledge
R: Read = 1
MPR121
Sensors
Freescale Semiconductor, Inc.
23
P
ACKAGE DIMENSIONS
P
AGE 1 OF 3
MPR121
Sensors
24
Freescale Semiconductor, Inc.
P
AGE 2 OF 3
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
MPR121QR2
Mfr. #:
Buy MPR121QR2
Manufacturer:
NXP / Freescale
Description:
Capacitive Touch Sensors Low Voltage Touch Pad
Lifecycle:
New from this manufacturer.
Delivery:
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Products related to this Datasheet
MPR121QR2
SEN-09695
