MPR083QR2 Freescale Semiconductor, MPR083QR2 Datasheet - Page 16

• Manufacturer Part Number: MPR083QR2
• Description: IC CTLR TOUCH SENSOR PROX 16-QFN
• Manufacturer: Freescale Semiconductor
• Type: Capacitiver

Specifications of MPR083QR2

• Number Of Inputs/keys: 8 Slider
• Data Interface: I²C, Serial
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Supply: 1.62mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN Exposed Pad
• Output Type: Voltage
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 3.3 V
• Dimensions: 5 mm L x 5 mm W x 1 mm H
• For Use With: DEMOMPR083 - BOARD DEMO FOR MPR083 CTLRKITMPR083EVM - KIT EVAL 8POSITION ROTARY TOUCH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MPR083
16
5.3
Low Power Configuration is achieved through setting two values; the Idle Timeout Period and the Sleep Cycle Duration. This
functionality is described in the following section.
5.3.1
The Low Power Configuration register is used to set both the Idle Timeout Period and Sleep Cycle Duration multiplication factors.
The I
2
C slave address of the Low Power Configuration Register is 0x08.
Table 11. Low Power Configuration Register Field Descriptions
Configuration
Low Power Configuration Register
Reset:
Field
SCD
ITP
7:5
4:0
W
R
0
7
= Unimplemented
Idle Timeout Period – The Idle Timeout Period selects the amount to multiply the
TASP (touch acquisition sample period) by to determine the idle interface timeout
(IIT) period of the sensor controller.
000 Encoding 0 – Disables Low Power Mode
001 Encoding 1 – Sets the ITP multiplication factor to 1
~
111 Encoding 7 – Sets the ITP multiplication factor to 7
Sleep Cycle Duration – The Sleep Cycle Duration Field selects the amount to
multiply the TASP (touch acquisition sample period) by to determine the Sleep
period of the sensor controller.
00000 Encoding 0 – Disables Low Power Mode
00001 Encoding 1 – Sets the SCD multiplication factor to 1
~
11111 Encoding 31 – Sets the SCD multiplication factor to 31
Figure 19. Low Power Configuration Register
ITP
6
0
5
0
4
0
Description
3
0
SCD
2
0
1
0
Freescale Semiconductor
0
0
Sensors