X9241A

Characteristics subject to change without notice.

11 of 18

REV 1.1.13 12/09/02

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D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)

Notes: (1) Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used

as a potentiometer.

(2) Relative Linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a poten-

tiometer. It is a measure of the error in step size.

(4) Max. = all four arrays cascaded together, Typical = individual array resolutions.

ENDURANCE AND DATA RETENTION

CAPACITANCE

POWER-UP TIMING

POWER-UP REQUIREMENTS (Power Up sequencing can affect correct recall of the wiper registers)

The preferred power-on sequence is as follows: First Vcc, then the potentiometer pins. It is suggested that Vcc

reach 90% of its final value before power is applied to the potentiometer pins. The Vcc ramp rate specification

should be met, and any glitches or slope changes in the Vcc line should be held to <100mV if possible. Also, Vcc

should not reverse polarity by more than 0.5V.

Notes: (5) This parameter is guaranteed by characterization or sample testing.

are guaranteed by design.

(7) This parameter is guaranteed by design.

(8) Maximum Wiper Current is derated over temperature. See the Wiper Current Derating Curve.

(9) Ti value denotes the maximum noise glitch pulse width that the device will ignore on either SCL or SDA pins. Any noise glitch pulse

width that is greater than this maximum value will be considered as a valid clock or data pulse and may cause communication failure

to the device.

Symbol

Parameter

Limits

Unit

Test Condition

Min.

Typ.

Max.

Supply current (active)

3

mA

200

500

µA

Input leakage current

10

µA

Output leakage current

10

µA

Input HIGH voltage

2

V

Input LOW voltage

–1

0.8

V

Output LOW voltage

0.4

V

Parameter

Min.

Unit

Minimum endurance

100,000

Data changes per bit per register

Data retention

100

Years

Symbol

Parameter

Max.

Unit

Test Condition

(5)

Input/output capacitance (SDA)

19

pF

(5)

Input capacitance (A0, A1, A2, A3 and SCL)

12

pF

Symbol

Parameter

Min.

Typ.

Max.

Unit

(6)

Power-up to initiation of read operation

1

ms

(6)

Power-up to initiation of write operation

5

ms

0.2

50

V/msec