Rainbow Electronics DS1867 - Manual

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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
Ω
- DS1867-50 ~ 50 k
Ω
- DS1867-100 ~ 100 k
Ω
Operating Temperature Range:
-
Industrial: -40
°C to +85°C
PIN DESCRIPTION
L0, L1 - Low End of Resistor
H0, H1 - High End of Resistor
W1, W2 - Wiper End of Resistor
V
B
- Substrate Bias
S
OUT
- Wiper for Stacked Configuration
RST - Serial Port Reset Input
DQ - Serial Port Data Input
CLK - Serial Port Clock Input
C
OUT
- Cascade Serial Port Output
V
CC
- +5-Volt Supply Input
GND - Ground
NC - No Internal Connection
DNC - Do Not Connect
PIN ASSIGNMENT
DS1867
Dual Digital Potentiometer with EEPROM
www.dalsemi.com
V
B
1 14 V
CC
H1 2 13 S
OUT
L1 3 12 WO
W1 4 11 HO
RST 5 10 LO
CLK 6 9 C
OUT
GND 7 8 DQ
14-Pin DIP (300-mil)
See Mech. Drawings Section
V
B
1 16 V
CC
NC 2 15 NC
H1 3 14 S
OUT
L1 4 13 WO
W1 5 12 HO
RST 6 11 LO
CLK 7 10 C
OUT
GND 8 9 DQ
16-Pin SOIC (300-mil)
See Mech. Drawings Section
V
B
1 20 V
CC
NC 2 19 DNC
H1 3 18 DNC
L1 4 17 S
OUT
W1 5 16 WO
RST 6 15 HO
CLK 7 14 LO
DNC 8 13 C
OUT
DNC 9 12 DNC
GND 10 11 DQ
20-Pin TSSOP (173-mil)
See Mech. Drawings Section