DP7140

2

Table 1. ORDERING INFORMATION

Part Number

Resistance

Temperature Range

Package

Shipping

DP7140ZI 50 GT3

50 k

40 C to 85 C

MSOP 8 3x3

(Pb Free)

3000/Tape & Reel

DP7140ZI 00 GT3

100 k

3000/Tape & Reel

Table 2. PIN FUNCTION DESCRIPTION

Pin No.

Pin Name

Description

1

WP

Memory Write Protect: Active Low

2

SCL

Serial Clock

3

SDA

Serial Data

4

GND

Ground

5

Wiper Terminal

6

Potentiometer Low Terminal

7

Potentiometer High Terminal

8

Supply Voltage

WP: Write Protect Input

The WP pin when tied low prevents any write operations

within the device.

SCL: Serial Clock

The DP7140 serial clock input pin is used to clock all

data transfers into or out of the device.

SDA: Serial Data

The DP7140 bidirectional serial data pin is used to

transfer data into and out of the device. The SDA pin is an

open drain output and can be wire-Ored with the other open

drain or open collector I/Os.

connections on a mechanical potentiometer.

mechanical potentiometer and its position is controlled by

the WR register.

Table 3. ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Unit

0.5 to +7

V

V

Wiper Current

6.0

mA

Storage Temperature Range

65 to +150

C

Junction Temperature Range

40 to +150

C

Lead Soldering Temperature (10 seconds)

300

C

ESD Rating HBM (Human Body Model)

2000

V

ESD Rating MM (Machine Model)

200

V

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. The minimum DC input voltage is –0.5 V. During transitions, inputs may undershoot to –2.0 V for periods of less than 20 ns. Maximum DC

Table 4. RECOMMENDED OPERATING CONDITIONS

Parameter

Rating

Unit

2.5 to 5.5

V

Wiper Current

3

mA

Temperature Range

40 to +85

C