參數(shù)資料
型號(hào)： ADN2860
廠商： ANALOG DEVICES INC
元件分類： 數(shù)字電位計(jì)
英文描述： High Bandwidth, CMOS 8-Bit Serial Interface Multiplying D/A Converter; Package: MSOP; No of Pins: 10; Temperature Range: Industrial
中文描述： 250K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 512 POSITIONS, QCC24
封裝： 4 X 4 MM, LFCSP-24
文件頁(yè)數(shù)： 8/15頁(yè)
文件大?。?/td> 1132K
代理商： ADN2860
Preliminary Technical Data
Setting the
WP
pin to a logic LOW protects the EEPROM
memory from future write operations. In this mode, EEPROM
read operations and RDAC register loading can still operate
normally.
RDAC I
2
C Interface Description
S
0
1
0
1
1
A
1
R
R
ADN2860
Page 8 of 15
A
0
0
A
CMD/
W
0
EE/
REG
A
4
A
3
A
2
A
1
A
0
A
Data
A
Data
A/
A
P
Figure 8. RDAC Write
S
0
1
0
1
1
A
1
R
A
0
R
1
A
RDAC EEPROM or Register Data
A
RDAC EEPROM or Register Data
A
P
Figure 9. RDAC Current Read
S
Slave Address
W
A
RDAC Address
A
S
Slave Address
R
A
RDAC Data
A/
A
P
Figure 10. RDAC Random Read
RDAC Register Addresses
(CMD/
W
=0, EE/
A4 A3 A2 A1 A0
0 0 0 0 0
0 0 0 0 1
0 0 0 1 0
0 0 0 1 1
0 0 1 0 0
0 0 1 0 1 to
1 1 1 1 1
Table 1. RDAC Register Address Table
RDAC R/W EEPROM Address Table
(CMD/
W
=0, EE/
A4 A3 A2 A1 A0
0 0 0 0 0
0 0 0 0 1
0 0 0 1 0
0 0 0 1 1
0 0 1 0 0
0 0 1 0 1 to
0 1 1 1 1
Table 2. RDAC R/W EEPROM Address Table
REG
=0)
Byte Description
(D7)(D6)(D5)(D4)(D3)(D2)(D1)(D0) – RDAC0 8 LSBs
(X)(X)(X)(X)(X)(X)(X)(D8) – RDAC0 MSB
(D7)(D6)(D5)(D4)(D3)(D2)(D1)(D0) – RDAC1 8 LSBs
(X)(X)(X)(X)(X)(X)(X)(D8) – RDAC1 MSB
(X)(D6)(D5)(D4)(D3)(D2)(D1)(D0) – RDAC2 7 bits
reserved
RDAC
RDAC0
RDAC0
RDAC1
RDAC1
RDAC2
REG
=1)
RDAC Read-Only EEPROM Address Table
(CMD/
W
=0, EE/
A4 A3 A2 A1 A0
1 0 0 0 0
1 0 0 0 1
1 0 0 1 0
1 0 0 1 1
1 0 1 0 0
1 0 1 0 1 to
1 1 1 1 1
REG
=1)
Byte Description
RDAC0 8 LSBs
RDAC0 MSB
RDAC1 8 LSBs
RDAC1 MSB
RDAC2 7 bits
11 bytes RDAC USER EEPROM
Byte Description
% Tolerance
% Tolerance
% Tolerance
% Tolerance
% Tolerance
reserved
(N bytes + Acknowledge)
1 Read
(N bytes + Acknowledge)
RDAC Slave Address
0 Write
RDAC Address
RDAC Slave Address
0 Write
Repeated Start
1 Read
(N bytes + Acknowledge)
REV. PrD
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