ST92E163N4D0 查看數據表（PDF） - STMicroelectronics

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ST92E163N4D0

8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS, 20K ROM, 2K RAM, I2C, SCI, & MFT

STMicroelectronics 

ST92163 - ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS (Cont’d)

Parameter

I2C Bus Timings

Symbol

Standard I2C

Min

Max

Bus free time between a STOP and START con-

dition

TBUF

4.7

Hold time START condition. After this period,

the first clock pulse is generated

LOW period of the SCL clock

HIGH period of the SCL clock

Set-up time for a repeated START condition

Data hold time

Data set-up time

Rise time of both SDA and SCL signals

Fall time of both SDA and SCL signals

THD:STA

TLOW

THIGH

TSU:STA

THD:DAT

TSU:DAT

TR

TF

4.0

4.7

4.0

4.7

0 (1)

250

1000

300

Set-up time for STOP condition

Capacitive load for each bus line

TSU:STO 4.0

Cb

400

Fast I2C

Min

Max

1.3

0.6

1.3

0.6

0.6

0 (1)

100

20+0.1Cb

20+0.1Cb

0.6

0.9(2)

300

300

400

Unit

ms

µs

µs

µs

µs

ns

ns

ns

ns

ns

pF

1)The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the unde-

fined 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

Cb = total capacitance of one bus line in pF

205/224

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