MCP4011-103ESLASHMS datasheet(36/60 Pages) MICROCHIP

Part #	MCP4011-103E/MS

Description	Low-Cost 64-Step Volatile Digital POT

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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36 / 60 page

MCP4011/2/3/4

DS21978C-page 36

5.2.7

HIGH-VOLTAGE DECREMENT 1

(FOR MCP402X COMPATIBILITY)

This mode is achieved by initializing the U/D pin to a

low state (VIL) prior to the CS pin being driven to VIHH.

Subsequent rising edges of the U/D pin decrement the

wiper setting toward terminal B. Set the U/D pin to the

low state (VIL) prior to forcing the CS pin to VIH. This is

shown in Figure 5-7.

After the CS pin is driven to VIH (from VIL), any other

serial command may immediately be entered.

FIGURE 5-7:

High-Voltage Decrement 1 (For MCP402X Compatibility).

Note:

This command allows compatibility with

the MCP402X family, which supports

updating of the non-volatile wiper setting

with the WiperLock Technology feature.

Note:

The wiper value will not underflow. That is,

once the wiper value equals 0x00,

subsequent decrement commands are

ignored.

U/D

Wiper

X-1

X-2

X-3

X-4

VIHH

VIH

VIL

VIH

VIL

MCP4011-103E/MS Datasheet(PDF) 36 Page - Microchip Technology