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102199
FEATURES
§
Nonvolatile version of the popular DS1267
§
Low power consumption, quiet, pumpless
design
§
Operates from single 5V or
±
5V supplies
§
Two digitally controlled, 256-position
potentiometers
§
Wiper position is maintained in the absence of
power
§
Serial port provides means for setting and
reading both potentiometers
§
Resistors can be connected in series to
provide increased total resistance
§
16-pin SOIC and 20-pin TSSOP for surface
mount applications
§
Standard resistance values:
-
DS1867-10 ~ 10 k
-
DS1867-50 ~ 50 k
-
DS1867-100 ~ 100 k
§
Operating Temperature Range:
-
Industrial: -40
°
C to +85
°
C
PIN DESCRIPTION
L0, L1
H0, H1
W1, W2
V
B
S
OUT
RST
DQ
CLK
C
OUT
V
CC
GND
NC
DNC
- Low End of Resistor
- High End of Resistor
- Wiper End of Resistor
- Substrate Bias
- Wiper for Stacked Configuration
- Serial Port Reset Input
- Serial Port Data Input
- Serial Port Clock Input
- Cascade Serial Port Output
- +5-Volt Supply Input
- Ground
- No Internal Connection
- Do Not Connect
PIN ASSIGNMENT
DS1867
Dual Digital Potentiometer with EEPROM
www.dalsemi.com
L1
V
B
H1
1
2
3
4
14
13
12
11
10
9
8
V
CC
S
OUT
WO
HO
LO
C
OUT
DQ
W1
RST 5
CLK
GND
6
7
14-Pin DIP (300-mil)
See Mech. Drawings Section
V
B
NC
H1
L1
W1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
NC
S
OUT
WO
HO
LO
C
OUT
DQ
RST
CLK
GND
16-Pin SOIC (300-mil)
See Mech. Drawings Section
V
B
NC
H1
L1
W1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
DNC
DNC
S
OUT
WO
HO
LO
C
OUT
DNC
DQ
RST
CLK
DNC
DNC
GND
20-Pin TSSOP (173-mil)
See Mech. Drawings Section