参数资料
| 型号： | MPR031EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 23/33页 |
| 文件大小： | 0K |
| 描述： | IC CTLR TOUCH SENSOR 8-DFN |
| 产品培训模块： | MPR03x - Low-Power Proximity Sensors |
| 特色产品： | MPR03x Proximity Capacitive Touch Sensor Controllers |
| 标准包装： | 1 |
| 类型： | 电容性 |
| 触摸面板接口： | 2 线 |
| 评估套件： | 可供 |
| 数据接口： | I²C，串行 |
| 数据速率/采样率 (SPS，BPS)： | 400k |
| 电源电压： | 1.71 V ~ 2.75 V |
| 电流 - 电源： | 43µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-UFDFN |
| 供应商设备封装： | 8-QFN-D（2x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 2808 (CN2011-ZH PDF) |
| 配用： | KITMPR03XEVM-ND - KIT EVAL FOR MPR03X DEMOMPR031-ND - BOARD DEMO FOR MPR031 CTLR |
| 其它名称： | MPR031EPR2DKR |
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MPR03X
Sensors
Freescale Semiconductor
3
2
External Signal Description
2.1
Device Pin Assignment
Table 1 shows the pin assignment for the MPR03X. For a more detailed description of the functionality of each pin, refer to the
appropriate chapter.
The package available for the MPR03X is a 2 x 2 mm 8 pin
DFN. The package and pinout is shown in Figure 3.
Figure 3. Package Pinouts
2.2
Recommended System Connections
The MPR03X Capacitive Touch Sensor Controller requires one external passive component. As shown in Table 1, the REXT line
should have a 75 k
connected from the pin to GND. This resistor needs to be 1% tolerance.
In addition to the one resistor, a bypass capacitor of 10 F should always be used between the VDD and VSS lines and a
4.7 k
pull-up resistor should be included on the IRQ. Note: This condition is when pin 8 is used for interrupt indication and not
for electrode sensing.
The remaining two connections are SCL and SDA. Depending on the specific application, each of these control lines can be used
by connecting them to a host controller. In the most minimal system, the SCL and SDA must be connected to a master I2C
interface to communicate with the MPR03X. All of the connections for the MPR03X are shown by the schematic in Figure 4.
Table 1. Device Pin Assignment
Pin
Name
Function
1SCL
I2C Serial Clock Input
2SDA
I2C Serial Data I/O
3VSS
Ground
4VDD
Positive Supply Voltage
5
REXT
Reference Resistor
Connect a 75 k
±1% resistor from REXT to V
SS
6
ELE0
Electrode 0
7
ELE1
Electrode 1
8IRQ/ELE2
Interrupt Output or Touch Electrode Input 2
IRQ is the active-low open-drain interrupt output
1
SCL
2
3
8
7
6
5
4
SDA
VSS
VDD
IRQ/ELE2
ELE1
ELE0
REXT
MPR03X
Interface
IC Serial
3
VSS
SDA
SCL
MPR03X
ELE0
ELE1
IRQ/ELE2
1
2
VSS
75k
VDD
REXT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPR031EPR2 | 制造商:Freescale Semiconductor 功能描述:IC CAPACITIVE TOUCH SENSOR FN-8 |
| MPR031EPR2-CUT TAPE | 制造商:Freescale 功能描述:MPR031 Series 2.75 V 8 ? Proximity Capacitive Touch Sensor Controller - UDFN-8 |
| MPR032 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Proximity Capacitive Touch Sensor Controller |
| MPR032EP | 制造商:Freescale Semiconductor 功能描述:CAPACITIVE TOUCH SENSOR 8-PIN UDFN BULK - Bulk |
| MPR032EPR2 | 功能描述:电容触摸传感器 DFN TOUCH PAD RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
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