参数资料
型号: M38857M8-XXXHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP80
封装: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数: 3/103页
文件大小: 1580K
代理商: M38857M8-XXXHP
3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
99
Symbol
Parameter
Unit
Table 39 Multi-master I2C-BUS bus line characteristics
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
Fig. 85 Timing diagram of multi-master I2C-BUS
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
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
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