参数资料
型号: STR912FW42X6
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, PLASTIC, LQFP-128
文件页数: 62/73页
文件大小: 1538K
代理商: STR912FW42X6
Obsolete
Product(s)
- Obsolete
Product(s)
STR91xF
Electrical characteristics
65/73
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
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
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
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
s
Cb
Capacitive load for each bus
line
400
pF
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