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参数资料
| 型号： | AD5252BRU100-RL7 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | 32-Tap. Nonvolatile. Linear-Taper Digital Potentiometers in SOT23 |
| 中文描述： | DUAL 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14 |
| 封装： | MO-153AB-1, TSSOP-14 |
| 文件页数： | 12/28页 |
| 文件大小： | 859K |
| 代理商： | AD5252BRU100-RL7 |
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AD5251/AD5252
Table 7. Addresses for Writing (Storing) RDAC Settings and
User-Defined Data to EEMEM Registers (R/W = 0,
CMD/REG = 0, EE/RDAC = 1)
A4
A3
A2
A1
A0
0
0
0
0
0
0
0
0
0
1
Rev. 0 | Page 12 of 28
Data Byte Description
Reserved
Store RDAC1 setting to
EEMEM1
1
Reserved
Store RDAC3 setting to
EEMEM3
1
Store user data to EEMEM4
Store user data to EEMEM5
Store user data to EEMEM6
Store user data to EEMEM7
Store user data to EEMEM8
Store user data to EEMEM9
Store user data to EEMEM10
Store user data to EEMEM11
Store user data to EEMEM12
Store user data to EEMEM13
Store user data to EEMEM14
Store user data to EEMEM15
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
1
User can store any of the 64 RDAC settings for AD5251 or any of the 256
RDAC settings for AD5252.
RDAC/EEMEM Read
The AD5251/AD5252 provide two different RDAC or EEMEM
read operations. For example, Figure 9 shows the method of
reading the RDAC0 to RDAC3 contents without specifying the
address, assuming Address RDAC0 was already selected from
the previous operation. If RDAC_N, other than Address 0, is
selected previously, readback starts with Address N, followed by
N + 1, and so on.
Figure 10 illustrates a random RDAC or EEMEM read
operation. This operation lets users specify which RDAC or
EEMEM register is read by first issuing a dummy write
command to change the RDAC address pointer, and then
proceeding with the RDAC read operation at the new address
location.
Table 8. Addresses for Reading (Restoring) RDAC Settings
and User Data from EEMEM (R/W = 1, CMD/REG = 0,
EE/RDAC = 1)
A4
A3
A2
A1
A0
0
0
0
0
0
0
0
0
0
1
Data Byte Description
Reserved
Read RDAC1 Setting from
EEMEM1
Reserved
Read RDAC3 Setting from
EEMEM3
Read user data from EEMEM4
Read user data from EEMEM5
Read user data from EEMEM6
Read user data from EEMEM7
Read user data from EEMEM8
Read user data from EEMEM9
Read user data from EEMEM10
Read user data from EEMEM11
Read user data from EEMEM12
Read user data from EEMEM13
Read user data from EEMEM14
Read user data from EEMEM15
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
1 READ
0
S
0
1
0
1
1
A
D
1
A
D
0
1
A
P
A
RDAC1
EEMEM OR REGISTER DATA
RDAC3
EEMEM OR REGISTER DATA
RDAC SLAVE ADDRESS
(N BYTES + ACKNOWLEDGE)
A
Figure 9. RDAC Current Read (Restricted to Previously Selected Address Stored in the Register).
P
S
SLAVE ADDRESS
0 WRITE
SLAVE ADDRESS
INSTRUCTION AND
ADDRESS
A
1
S
0
REPEATED START
1 READ
A
0
A
(N BYTES + ACKNOWLEDGE)
RDAC OR
EEMEM DATA
A/A
Figure 10. RDAC or EEMEM Random Read
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