參數(shù)資料
型號: EWIXP455ABT
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 266 MHz, RISC PROCESSOR, PBGA544
封裝: LEAD FREE, PLASTIC, BGA-544
文件頁數(shù): 65/163頁
文件大?。?/td> 1123K
代理商: EWIXP455ABT
Electrical Specifications
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
May 2005
Document Number: 306261-002
157
5.6.2.9
I2C Interface Timing
Figure 44.
I2C Interface Timing
Table 78.
I2C Interface Timing Values
Symbol
Parameter
Min.
Max.
Min.
Max.
Units
Notes
FSCL
SCL Clock Frequency
0
100
0
400
KHz
TBUF
Bus Free Time Between STOP and START
Condition
4.7
1.3
s
THDSTA
Hold Time (repeated) START Condition
4
0.6
s
TLOW
SCL Clock Low Time
4.7
1.3
s
THIGH
SCL Clock High Time
4
0.6
s
TSUSTA
Setup Time for a Repeated START Condition
4.7
0.6
s
THDDAT
Data Hold Time
0
3.45
0
0.9
s
TSUDAT
Data Setup Time
250
100
ns
TSR
SCL and SDA Rise Time
1000
20+0.1Cb
300
ns
TSF
SCL and SDA Fall Time
300
20+0.1Cb
300
ns
TSUSTO
Setup Time for STOP Condition
4
0.6
s
NOTES:
1. Not tested
2. After this period, the first clock pulse is generated
I2C_SDA
I2C_SCL
Stop
Start
Repeated
Start
Stop
T
BUF
T
LOW
T
HDSTA
T
SR
T
HDDAT
T
HIIGH
T
SUDAT
T
SUSTA
T
SF
T
HDSTA
T
SP
T
SUSTO
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