参数资料
型号: STR912FAW32X6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 96 MHz, RISC MICROCONTROLLER, PQFP128
封装: 14 X 14 MM, 0.40 MM PITCH, ROHS COMPLIANT, PLASTIC, LQFP-128
文件页数: 87/101页
文件大小: 1922K
代理商: STR912FAW32X6
Electrical characteristics
STR91xFAxxx
7.12.4
I2C electrical characteristics
VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.
Table 45.
I2C electrical characteristics
Symbol
Parameter
Standard I2CFast I2C
Unit
Min
Max
Min
Max
tBUF
Bus free time between a STOP
and START condition
4.7
1.3
s
tHD:STA
Hold time START condition.
After this period, the first clock
pulse is generated(1)
1.
The maximum hold time of the START condition has only to be met if the interface does not stretch the low
period of SCL signal
4.0
0.6
s
tLOW
LOW period of the SCL clock
4.7
1.3
s
tHIGH
HIGH period of the SCL clock
4.0
0.6
s
tSU:STA
Set-up time for a repeated
START condition
4.7
0.6
s
tHD:DAT
Data hold time(2)
2.
The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the
undefined region of the falling edge of SCL.
00
ns
tSU:DAT
Data set-up time
250
100
ns
tR
Rise time of both SDA and SCL
signals
1000
20+0.1Cb
(3)
3.
Cb = total capacitance of one bus line in pF
300
ns
tF
Fall time of both SDA and SCL
signals
300
20+0.1Cb
300
ns
tSU:STO
Set-up time for STOP condition
4.0
0.6
s
Cb
Capacitive load for each bus
line
400
pF
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