參數(shù)資料
型號(hào): DEMOMPR083
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 30/35頁(yè)
文件大?。?/td> 0K
描述: BOARD DEMO FOR MPR083 CTLR
產(chǎn)品培訓(xùn)模塊: Sensor Toolbox
標(biāo)準(zhǔn)包裝: 1
傳感器類型: 觸摸,電容式
傳感范圍: 8 個(gè)按鈕/鍵
接口: I²C
電源電壓: 1.8 V ~ 3.6 V
嵌入式: 是,MCU,8 位
已供物品: 板,電池
已用 IC / 零件: MPR083
產(chǎn)品目錄頁(yè)面: 2808 (CN2011-ZH PDF)
相關(guān)產(chǎn)品: MPR083EJR2CT-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083QR2-ND - IC CTLR TOUCH SENSOR PROX 16-QFN
MPR083Q-ND - IC CTLR TOUCH SENSOR PROX 16-QFN
MPR083EJR2TR-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083EJ-ND - IC CTLR TOUCH SENSR PROX 16TSSOP
MPR083
Sensors
4
Freescale Semiconductor
2
External Signal Description
2.1
Device Pin Assignment
Table 3 shows the pin assignment for the MPR083. For a more detailed description of the functionality of each pin, refer to the
appropriate chapter.
The two packages available for the MPR083 are a 5x5mm 16 pin QFN and a 4x5mm 16 pin TSSOP. Both of the packages and
their respective pinouts are shown in Figure 3.
Figure 3. Package Pinouts
2.2
Recommended System Connections
The MPR083 Capacitive Touch Sensor Controller requires ten external passive components. When connecting the MPR083 in
a touch sensor system, the electrode lines must have pull-up resistors. The recommended value for these pull-ups is 780k
.
Some electrode arrays will require higher or lower values depending on the application.
In addition to the 8 resistors, a bypass capacitor of 1F should always be used between the VDD and VSS lines and a 4.7
k
pull-up resistor should be included on the IRQ.
Table 3. Device Pin Assignment
Pin
Name
Function
1ATTN
Attention Pin. Input, active low when asserted sets the Configuration Register’s DCE bit high
allowing communication with the part.
2IRQ
Interrupt Request Pin. Output, active-low, open-drain interrupt request signaling new events.
3
VDD
Positive Supply Voltage
4
VSS
Ground
5SCL
I2C Serial Clock
6SDA
I2C Serial Data
7
AD0
Address input. Low = slave address 0x4C. High = slave address 0x4D.
8
SOUNDER
Sounder driver output. Connect a piezo sounder from this output to ground. Output is push-pull
9 - 16
E1, E2, E3, E4, E5,
E6, E7, E8
Rotary Electrode connections.
PAD
Exposed pad
Exposed pad on package underside (QFN only). Connect to VSS.
E1
E2
E3
E4
E5
E6
E7
E8
VDD
VSS
SCL
SDA
AD0
SOUNDER
ATTN
IRQ
3
4
1
2
10
9
12
11
78
56
14 13
16 15
E1
E2
E3
E4
E5
E6
E7
E8
VDD
VSS
SCL
SDA
AD0
SOUNDER
ATTN
IRQ
1
4
3
2
5
8
7
6
16
13
14
15
12
9
10
11
QFN
TSSOP
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