2

FN8223.1

January 24, 2007

Pin Descriptions

equivalent to the fixed terminals of a mechanical

potentiometer. The minimum voltage is –5V and the

maximum is +5V. It should be noted that the terminology of

relation to wiper movement direction selected by the U/D

input and not the voltage potential on the terminal.

of a mechanical potentiometer. The position of the wiper

within the array is determined by the control inputs. The

wiper terminal series resistance is typically 40

Ω.

Up/Down (U/D)

The U/D input controls the direction of the wiper movement

and whether the counter is incriminated or decremented.

Increment (INC)

The INC input is negative-edge triggered. Toggling INC will

move the wiper and either increment or decrement the

counter in the direction indicated by the logic level on the

U/D input.

Chip Select (CS)

The device is selected when the CS input is LOW. The

current counter value is stored in nonvolatile memory when

CS is returned HIGH while the INC input is also HIGH. After

the store operation is complete the device will be placed in

the low power standby mode until the device is selected

once again.

Pinout

X9C303

(8 LD SOIC, 8 LD TSSOP, 8 LD PDIP)

TOP VIEW

Ordering Information

PART NUMBER

PART MARKING

TEMPERATURE RANGE (°C)

PACKAGE

PKG. DWG. #

X9C303P

X9C303P

0 to +70

8 Ld PDIP

MDP0031

X9C303PI

X9C303P I

-40 to +85

8 Ld PDIP

MDP0031

X9C303PIZ (Note)

X9C303P ZI

-40 to +85

8 Ld PDIP (300 mil) (Pb-free)

MDP0031

X9C303PZ (Note)

X9C303P Z

0 to +70

8 Ld PDIP (300 mil) (Pb-free)

MDP0031

X9C303S8*

X9C303S

0 to +70

8 Ld SOIC (150 mil)

MDP0027

X9C303S8I*

X9C303S I

-40 to +85

8 Ld SOIC (150 mil)

MDP0027

X9C303S8IZ* (Note)

X9C303S ZI

-40 to +85

8 Ld SOIC (150 mil) (Pb-free)

MDP0027

X9C303S8Z* (Note)

X9C303S Z

0 to +70

8 Ld SOIC (150 mil) (Pb-free)

MDP0027

X9C303V8*

9C303

0 to +70

8 Ld TSSOP (4.4mm)

M8.173

X9C303V8I*

C303 I

-40 to +85

8 Ld TSSOP (4.4mm)

M8.173

X9C303V8IZ* (Note)

C303 IZ

-40 to +85

8 Ld TSSOP (4.4mm) (Pb-free)

M8.173

X9C303V8Z* (Note)

9CC303 Z

0 to +70

8 Ld TSSOP (4.4mm) (Pb-free)

M8.173

X9C303S8I-2.7

X9C303S G

-40 to +85

8 Ld SOIC (150 mil)

MDP0027

X9C303S8IZ-2.7 (Note)

X9C303S ZG

-40 to +85

8 Ld SOIC (150 mil) (Pb-free)

MDP0027

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate

termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL

classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

*Add "T1" suffix for tape and reel.

Pin Names

SYMBOL

DESCRIPTION

VH

High Terminal (Potentiometer)

VW

Wiper Terminal (Potentiometer)

VL

Low Terminal (Potentiometer)

VSS

Ground

VCC

Supply Voltage

U/D

Up/Down Control Input

INC

Increment Control Input

CS

Chip Select Control Input

NC

No Connection

CS

INC

U/D

1

2

3

4

8

7

6

5

X9C303

(CS)

(INC)

(U/D)

X9C303