参数资料
型号: KITMPR121EVM
厂商: Freescale Semiconductor
文件页数: 2/27页
文件大小: 0K
描述: KIT EVALUATION MPR121
产品培训模块: MPR121: Low-Power Touch Sensor
标准包装: 1
传感器类型: 近程
接口: USB
电源电压: 5V,USB
嵌入式:
已供物品: 4 个板,线缆,文档
已用 IC / 零件: MPR121
产品目录页面: 2808 (CN2011-ZH PDF)
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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