X90100 datasheet(6/10 Pages) XICOR

Part #	X90100

Description	NV Electronically Programmable Capacitor

PDF	10 Pages

Scroll/Zoom	100%

Manufacturer	XICOR [Xicor Inc.]

Direct Link	http://www.xicor.com

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6 / 10 page

6 of 10

REV 1.4.7 9/8/03

www.xicor.com

X90100

POWER UP TIMING (DIGITAL INPUTS FLOATING, INTERNAL PULLUP ACTION SHOWN)

POWER UP AND DOWN REQUIREMENTS

There are no restrictions on the power-up or power-down conditions of VCC and the voltages applied to the Cp, Cm

pins provided that VCC is always more positive than or equal to VCp, VCm, i.e., VCC ≥ VCp, VCm. The VCC ramp rate

spec is always in effect.

Powerup Requirements

In order to prevent unwanted tap position changes or an inadvertant store, bring the CS and INC high before or

concurrently with the VCC pin. The logic inputs have internal active pullups to provide reliable powerup operation.

See powerup timing diagram.

VCC

INC

U/D

VCC = 3.3 or 5.0V

tRVCC

X90100 Datasheet(PDF) 6 Page - Xicor Inc.