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參數(shù)資料
| 型號： | LM12434 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Sign Data Acquisition System with Serial I/O and Self-Calibration |
| 中文描述： | 注冊數(shù)據(jù)采集系統(tǒng)的串行I / O和自校準(zhǔn) |
| 文件頁數(shù)： | 13/80頁 |
| 文件大小： | 1561K |
| 代理商： | LM12434 |
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2.0 Electrical Specifications
(Continued)
2.3 DIGITAL SWITCHING CHARACTERISTICS
The following specifications apply to the LM12434 and LM12
à
L
ó
438 for V
A
a
e
V
D
a e
5V
à
3.3V
ó
, AGND
e
DGND
e
0V, C
L
(load capacitance) on output lines
e
80 pF unless otherwise specified.
Boldface limits apply for T
A
e
T
J
e
T
MIN
to T
MAX
,
all other limits for T
A
e
T
J
e
25
§
C. (Notes 6, 7, and 9) (Continued)
2.3.4 I
2
C Bus Interface
The switching characteristics of the LM12434/8 for I
2
C bus interface fully meets or exceeds the published specifications of the
I
2
C bus. The following parameters given here are the timing relationships between SCL and SDA signals related to the
LM12434/8. They are not the I
2
C bus specifications.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
(Limit)
(SeeFigure Below)
t
17
SCL (Clock) Period
2500
à
10000
ó
ns (min)
t
18
Data in Set-Up Time to SCL High
30
ns (min)
t
19
Data Out Stable after SCL Low
900
à
1400
ó
ns (max)
t
20
SDA Low Set-Up Time to SCL
Low (Start Condition)
40
ns (min)
t
21
SDA High Hold Time after SCL
High (Stop Condition)
40
ns (min)
TL/H/11879–22
13
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