參數(shù)資料
型號: AD5172BRM50-RL7
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字電位計
英文描述: Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
中文描述: DUAL 50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝: 3 X 4.90 MM, MO-187BA, MSOP-10
文件頁數(shù): 5/24頁
文件大小: 948K
代理商: AD5172BRM50-RL7
AD5172/AD5173
TIMING CHARACTERISTICS—2.5 k, 10 k, 50 k, 100 k VERSIONS
Table 3. V
DD
= 5 V ± 10% or 3V ± 10%; V
A
= V
DD
; V
B
= 0 V; –40°C < T
A
< +125°C; unless otherwise noted
Parameter
Symbol
I
2
C INTERFACE TIMING CHARACTERISTICS
1
(Specifications Apply to All Parts)
SCL Clock Frequency
f
SCL
t
BUF
Bus Free Time between STOP and START
t
1
t
HD;STA
Hold Time (Repeated START)
t
2
Rev. A | Page 5 of 24
Conditions
Min
1.3
0.6
Typ
Max
400
Unit
kHz
μs
μs
After this period, the first clock pulse is
generated.
t
LOW
Low Period of SCL Clock
t
HIGH
High Period of SCL Clock
t
SU;STA
Setup Time for Repeated START Condition
t
HD;DAT
Data Hold Time
2
t
SU;DAT
Data Setup Time
t
F
Fall Time of Both SDA and SCL Signals
t
R
Rise Time of Both SDA and SCL Signals
t
SU;STO
Setup Time for STOP Condition
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
1.3
0.6
0.6
100
0.6
0.9
300
300
μs
μs
μs
μs
ns
ns
ns
μs
1
See timing diagrams for locations of measured values.
2
The maximum t
HD;DAT
has only to be met if the device does not stretch the LOW period (t
LOW
) of the SCL signal.
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