參數(shù)資料
型號: M38049MC-XXXFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件頁數(shù): 36/138頁
文件大小: 1887K
代理商: M38049MC-XXXFP
Rev.4.01
Nov 14, 2003
page 128 of 136
3803/3804 Group
Table 40 Multi-master I2C-BUS bus line characteristics
Fig. 108 Timing diagram of multi-master I2C-BUS
tBUF
tHD:STA
tHD:DAT
tLOW
tR
tF
tHIGH
tsu:DAT
tsu:STA
tHD:STA
tsu:STO
SCL
P
S
Sr
P
SDA
S : START condition
Sr: RESTART condition
P : STOP condition
Symbol
Parameter
Unit
Bus free time
Hold time for START condition
Hold time for SCL clock = “0”
Rising time of both SCL and SDA signals
Data hold time
Hold time for SCL clock = “1”
Falling time of both SCL and SDA signals
Data setup time
Setup time for repeated START condition
Setup time for STOP condition
tBUF
tHD;STA
tLOW
tR
tHD;DAT
tHIGH
tF
tSU;DAT
tSU;STA
tSU;STO
Min.
Max.
Min.
Max.
s
ns
s
ns
s
Standard clock mode
High-speed clock mode
Note: Cb = total capacitance of 1 bus line
4.7
4.0
4.7
0
4.0
250
4.7
4.0
1000
300
1.3
0.6
1.3
20+0.1Cb
0
0.6
20+0.1Cb
100
0.6
300
0.9
300
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