M62320FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M62320FP

8-BIT I/O EXPANDER for I²C BUS

MITSUBISHI ELECTRIC  

MITSUBISHI < STD. LINEAR ICs >

M62320P,FP

8-BIT I/O EXPANDER for I2 C BUS

I2C BUS CHARACTERISTICS

Symbol

Parameter

fSCL SCL clock frequency

tBUF Free time: the bus must be free before a new transmission can start

tHD:STA

Hold time START Condition. After this period,the first clock pulse

is generated.

tLOW LOW period of the clock

tHIGH HIGh period of the clock

tSU:STA

Set-up time for START condition (Only relevant for a repeated

START condition)

tHD:DAT Data Hold time

tSU:DAT Data Set-up time

tR

Rise time of SDA and SCL signals

tF

Fall time of SDA and SCL signals

tSU:STO Set-up time for STOP condition

Limits

Unit

Min. Max.

0

100 KHz

4.7

-

µs

4.0

-

µs

4.7

-

µs

4.0

-

µs

4.7

-

µs

0

-

µs

250

-

ns

- 1000 ns

-

300 ns

4.0

-

µs

• Note that a transmitter must internally provide at least a hold time to bridge the undefined region

(max.300 ns) of the falling edge of SCL.

TIMING CHART

tR, tF

tBUF

VIH

SDA

VIL

VIH

SCL

VIL

tHD:STA

START

tSU:DAT

tHD:DAT

tLOW

tHIGH

tSU:STA

START

tSU:STO

STOP

START

MITSUBISHI ELECTRIC

2/20,1998(rev) ( 4 / 9 )

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