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AD5258BRMZ50-R71 データシート(PDF) 16 Page - Analog Devices

部品番号 AD5258BRMZ50-R71
部品情報  Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer
PDF  24 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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AD5258BRMZ50-R71 データシート(HTML) 16 Page - Analog Devices

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AD5258
Rev. 0 | Page 16 of 24
I2C BYTE FORMATS
The following generic, write, read, and store/restore control
registers for the AD5258 all refer to the device addresses listed
in Table 5, and the mode/condition reference key (S, P, SA, MA,
NA, W, R, and X) listed below.
S
= Start Condition
P
= Stop Condition
SA
= Slave Acknowledge
MA
= Master Acknowledge
NA
= No Acknowledge
W = Write
R
= Read
X
= Don’t Care
Table 5. Device Address Lookup
AD1 and AD0 are three-state address pins.
Device Address
AD1
AD0
0011000
0
0
0011001
NC
0
0011010
1
0
0101001
0
NC
0101010
NC
NC
0101011
1
NC
1001100
0
1
1001101
NC
1
1001110
1
1
GENERIC INTERFACE
Table 6. Generic Interface Format
S
7-Bit Device Address
(See Table 5)
R/W SA C2 C1 C0 A4 A3 A2 A1 A0 SA D7 D6 D5 D4 D3 D2 D1 D0 SA P
Slave Address Byte
Instruction Byte
Data Byte
Table 7. RDAC-to-EEPROM Interface Command Descriptions
C2
C1
C0
Command Description
0
0
0
Operation between I2C and RDAC
0
0
1
Operation between I2C and EEPROM
0
1
0
Operation between I 2C and Write Protection
Register. See Table 10.
1
0
0
NOP
1
0
1
Restore EEPROM to RDAC
1
1
0
Store RDAC to EEPROM



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