X9511WPIZ datasheet(4/9 Pages) RENESAS

Part #	X9511WPIZ

Description	Single Push Button Controlled Potentiometer (XDCP?? Linear, 32 Taps, Push Button Controlled, Terminal Voltage 짹5V

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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4 / 9 page

X9511

FN8205 Rev 3.00

Page 4 of 9

February 2, 2007

The wiper, when at either fixed terminal, acts like its

mechanical equivalent and does not move beyond the

last position. That is, the counter does not wrap around

when clocked to either extreme.

AUTOSTORE

The value of the counter is stored in EEPROM memory

whenever the chip senses a power-down of VCC while

ASE is enabled (held LOW). When power is restored,

the content of the memory is recalled and the counter

reset to the last value stored.

If AUTOSTORE is to be implemented, ASE is typically

hard wired to VSS. If ASE is held HIGH during power-up

and then taken LOW, the wiper will not respond to the

PU or PD inputs until ASE is brought HIGH and held

HIGH.

Manual (Push Button) Store

When ASE is not enabled (held HIGH) a push button

switch may be used to pull ASE LOW and released to

perform a manual store of the wiper position.

RTOTAL with VCC Removed

The end to end resistance of the array will fluctuate once

VCC is removed.

VCC



VCC

ASE

VSS

FIGURE 1. TYPICAL CIRCUIT WITH ASE STORE

CONTROLLED BY PUSH BUTTON SWITCH

VCC

ASE

VSS

3.3µF

FIGURE 2. TYPICAL CIRCUIT WITH ASE STORE PIN USED

IN AUTOSTORE MODE

X9511WPIZ Datasheet(PDF) 4 Page - Renesas Technology Corp