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参数资料
| 型号： | AD5259EVAL |
| 厂商： | Analog Devices, Inc. |
| 元件分类： | 数字电位计 |
| 英文描述： | Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer |
| 中文描述： | 非易失，I2C兼容256级，数字电位器 |
| 文件页数： | 5/14页 |
| 文件大小： | 246K |
| 代理商： | AD5259EVAL |
AD5259
Preliminary Technical Data
I
2
C INTERFACE
Table 3. Generic Interface Format
Device Address*
Rev. PrJ 7/22/04 | Page 5 of 14
S
(7-bit)
R/W SA C2 C1
C0 A4 A3 A2 A1 A0 SA D7 D6 D5 D4 D3 D2 D1 D0 SA
Instruction Byte
P
Slave Address Byte
Data Byte
Table 4. Device Address Lookup*
(Note that AD1 and AD0 are tri-state address pins)
Device
Address
0011000
0011001
0011010
0101001
0101010
0101011
1001100
1001101
1001110
0
0
0
0
NC
1
0
NC
1
0
NC
1
NC
NC
NC
1
1
1
AD1
AD0
S = Start Condition
P = Stop Condition
SA = Slave Acknowledge
MA = Master Acknowledge
NA = No Acknowledge
X = Don’t Care
W = Write
R = Read
Table 5. RDAC-to-EEMEM Interface Command Descriptions
C2
C1
C0
Command Description
0
0
0
Operation between I
2
C and RDAC
0
0
1
Operation between I
2
C and EEPROM
0
1
0
Operation between I
2
C and WP register
1
0
0
NOP
1
0
1
Restore EEPROM to RDAC
1
1
0
Store RDAC to EEPROM
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