2

FN8223.2

January 30, 2009

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 incremented 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.

Pinouts

X9C303

(8 LD SOIC, 8 LD PDIP)

TOP VIEW

X9C303

(8 LD TSSOP)

TOP VIEW

Ordering Information

PART

NUMBER

PART

MARKING

TEMP. 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 (Notes 1, 2)

X9C303P ZI

-40 to +85

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

MDP0031

X9C303PZ (Notes 1, 2)

X9C303P Z

0 to +70

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

MDP0031

X9C303S

0 to +70

8 Ld SOIC (150 mil)

MDP0027

X9C303S8I*

X9C303S I

-40 to +85

8 Ld SOIC (150 mil)

MDP0027

X9C303S8IZ* (Note 1)

X9C303S ZI

-40 to +85

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

MDP0027

X9C303S8Z* (Note 1)

X9C303S Z

0 to +70

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

MDP0027

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 1)

C303 IZ

-40 to +85

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

M8.173

X9C303V8Z* (Note 1)

9C303 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 1) X9C303S ZG

-40 to +85

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

MDP0027

*Add “T1” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

**Add “T2” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

NOTES:

1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%

matte tin plate plus anneal (e3 termination finish, which is 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.

2. Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications.

CS

INC

U/D

1

2

3

4

8

7

6

5

X9C303

1

2

3

4

8

7

6

5

X9C303

CS

INC

U/D

X9C303