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STR91XF Arkusz danych(PDF) 65 Page - STMicroelectronics

Numer części STR91XF
Szczegółowy opis  ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
PDF  73 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR91XF Arkusz danych(HTML) 65 Page - STMicroelectronics

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STR91xF
Electrical characteristics
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6.14.4 I2C electrical characteristics
VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.
Table 28.
I2C Electrical Characteristics
Notes: 1 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
2 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
3Cb = total capacitance of one bus line in pF
Symbol
Parameter
Standard I2C
Fast I2C
Unit
MinMax
MinMax
tBUF
Bus free time between a STOP
and START condition
4.7
1.3
ms
tHD:STA
Hold time START condition.
After this period, the first clock
pulse is generated
4.0
0.6
µs
tLOW
LOW period of the SCL clock
4.7
1.3
µs
tHIGH
HIGH period of the SCL clock
4.0
0.6
µs
tSU:STA
Set-up time for a repeated
START condition
4.7
0.6
µs
tHD:DAT
Data hold time
0
0
ns
tSU:DAT
Data set-up time
250
100
ns
tR
Rise time of both SDA and SCL
signals
1000
20+0.1Cb
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
µs
Cb
Capacitive load for each bus
line
400
400
pF



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