參數(shù)資料
型號(hào)： LM12438CIWMX
廠(chǎng)商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： SOP-28
文件頁(yè)數(shù)： 5/80頁(yè)
文件大?。?/td> 1552K
代理商： LM12438CIWMX
20 Electrical Specifications (Continued)
23 DIGITAL SWITCHING CHARACTERISTICS
The following specifications apply to the LM12434 and LM12 L 438 for VAa
e
VDae 5V 33V
AGND e DGND e 0V CL (load capacitance) on output lines e 80 pF unless otherwise specified
Boldface limits apply for TA e TJ e TMIN to TMAX all other limits for TA e TJ e 25 C (Notes 6 7 and 9) (Continued)
234 I2C Bus Interface
The switching characteristics of the LM124348 for I2C bus interface fully meets or exceeds the published specifications of the
I2C bus The following parameters given here are the timing relationships between SCL and SDA signals related to the
LM124348 They are not the I2C bus specifications
Symbol
Parameter
Conditions
Typical
Limits
Units
(See
Figure Below)
(Note 10)
(Note 11)
(Limit)
t17
SCL (Clock) Period
2500 10000
ns (min)
t18
Data in Set-Up Time to SCL High
30
ns (min)
t19
Data Out Stable after SCL Low
900 1400
ns (max)
t20
SDA Low Set-Up Time to SCL
40
ns (min)
Low (Start Condition)
t21
SDA High Hold Time after SCL
40
ns (min)
High (Stop Condition)
TLH11879 – 22
13
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