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Rainbow Electronics DS1867 User Manual

Ds1867 dual digital potentiometer with eeprom, Features, Pin description

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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

- 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