参数资料
型号: LM9617CCEA-2
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, CQCC48
封装: LCC-48
文件页数: 29/40页
文件大小: 408K
代理商: LM9617CCEA-2
Confidential
35
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Timing Information (continued)
4.0
SERIAL BUS TIMING
Figure 59. I2C Compatible Serial Bus Timing.
The following specifications apply for all supply pins = +3.3V, C
L = 10pF, and sclk = 400KHz unless otherwise noted. Boldface limits
apply for TA = TMIN to TMAX: all other limits TA = 25
oC (Note 7)
PARAMETER
SYMBOL
MIN
MAX
UNIT
sclk clock frequency
fSCLH
0
400
KHz
Set-up time (repeated) START condition
t
SU;STA
0.6
-
S
Hold time (repeated) START condition
tHD;STA
0.6
-
S
LOW period of the sclk clock
tLOW
1.3
-
S
HIGH period of the sclk clock
t
HIGH
0.6
-
S
Data set-up time
tSU;DAT
180
-
nS
Data hold time
tHD;DAT
0
0.9
S
Set-up time for STOP condition
t
SU;STO
0.6
S
Capacitive load for sda and sclk lines
Cb
400
pF
tfDA
tfDA
Sr
P
SDA
SCLK
tHD;STA
tHD;DAT
tSU;STA
tSU;DAT
tSU;STO
trCL
t
rCL
tLOW
tHIGH
trCL1
tHIGH
tLOW
trCL1
(1)
= Rp resistor pull-up
= MCS current source pull-up
(1) Rising edge of the first SCLK pulse after an acknowledge bit.
L
M
9
6
1
7
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