I2C AC Characteristics
參數(shù)資料
型號(hào): MPR121QR2
廠商: Freescale Semiconductor
文件頁數(shù): 2/27頁
文件大?。?/td> 0K
描述: IC CTLR TOUCH SENSOR 20-QFN
產(chǎn)品培訓(xùn)模塊: MPR121: Low-Power Touch Sensor
產(chǎn)品目錄繪圖: MPR121QR2CT
特色產(chǎn)品: MPR121 Proximity Capacitive Touch Sensor Controller
標(biāo)準(zhǔn)包裝: 1
類型: 電容式,近程傳感器
輸入數(shù)/鍵: 12
評(píng)估套件: 可供
數(shù)據(jù)接口: I²C,串行
電源電壓: 1.71 V ~ 3.6 V
電流 - 電源: 29µA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-UFQFN
供應(yīng)商設(shè)備封裝: 20-QFN(3x3)
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 2808 (CN2011-ZH PDF)
其它名稱: MPR121QR2DKR
MPR121
Sensors
10
Freescale Semiconductor, Inc.
4.5
I2C AC Characteristics
Table 7. I2C AC Characteristics
(Typical Operating Circuit,
VDD and VREG = 1.8V, TA = 25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Serial Clock Frequency
fSCL
400
kHz
Bus Free Time Between a STOP and a START Condition
tBUF
1.3
μs
Hold Time, (Repeated) START Condition
tHD, STA
0.6
μs
Repeated START Condition Setup Time
tSU, STA
0.6
μs
STOP Condition Setup Time
tSU, STO
0.6
μs
Data Hold Time
tHD, DAT
0.9
μs
Data Setup Time
tSU, DAT
100
ns
SCL Clock Low Period
tLOW
1.3
μs
SCL Clock High Period
tHIGH
0.7
μs
Rise Time of Both SDA and SCL Signals, Receiving
tR
20+0.1Cb
300
ns
Fall Time of Both SDA and SCL Signals, Receiving
tF
20+0.1Cb
300
ns
Fall Time of SDA Transmitting
tF.TX
20+0.1Cb
250
ns
Pulse Width of Spike Suppressed
tSP
25
ns
Capacitive Load for Each Bus Line
Cb
400
pF
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