I2C INTERFACE WRITE MODE Table 1" />
參數(shù)資料
型號: AD5172BRMZ50
廠商: Analog Devices Inc
文件頁數(shù): 13/28頁
文件大小: 0K
描述: IC DGTL POT DUAL 50K 10-MSOP
標準包裝: 50
接片: 256
電阻(歐姆): 50k
電路數(shù): 2
溫度系數(shù): 標準值 35 ppm/°C
存儲器類型: 非易失
接口: I²C
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 管件
AD5172/AD5173
Data Sheet
Rev. I | Page 20 of 28
I2C INTERFACE
WRITE MODE
Table 10. AD5172 Write Mode
S
0
1
0
1
W
A A0 SD T
0 OW X
X
A D7 D6 D5 D4 D3 D2 D1 D0 A
P
Slave address byte
Instruction byte
Data byte
Table 11. AD5173 Write Mode
S
0
1
0
1
1 AD1 AD0 W
A A0 SD T
0 OW X
X
A D7 D6 D5 D4 D3 D2 D1 D0 A
P
Slave address byte
Instruction byte
Data byte
READ MODE
Table 12. AD5172 Read Mode
S
0
1
0
1
R
A D7 D6 D5 D4 D3 D2 D1 D0 A E1 E0
X
A
P
Slave address byte
Instruction byte
Data byte
Table 13. AD5173 Read Mode
S
0
1
0
1
1 AD1 AD0 R
A D7 D6 D5 D4 D3 D2 D1 D0 A E1 E0
X
A
P
Slave address byte
Instruction byte
Data byte
Table 14. SDA Bits Descriptions
Bit
Description
S
Start condition.
P
Stop condition.
A
Acknowledge.
AD0, AD1
Package pin-programmable address bits.
X
Don’t care.
W
Write.
R
Read.
A0
RDAC subaddress select bit.
SD
Shutdown connects wiper to B terminal and open circuits the A terminal. It does not change the
contents of the wiper register.
T
OTP programming bit. Logic 1 programs the wiper permanently.
OW
Overwrites the fuse setting and programs the digital potentiometer to a different setting. Upon
power-up, the digital potentiometer is preset to either midscale or fuse setting, depending on
whether the fuse link was blown.
D7, D6, D5, D4, D3, D2, D1, D0
Data bits.
E1, E0
OTP validation bits.
00 = ready to program.
10 = fatal error. Some fuses not blown. Do not retry. Discard this unit.
11 = programmed successfully. No further adjustments are possible.
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