Data Sheet

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

PmodLVLSHFT™ Reference Manual

Revised April 12, 2016

This manual applies to the PmodLVLSHFT rev. B

DOC#: 502-320

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 3

Overview

The Digilent PmodLVLSHFT is a digital logic level shifter. This module is ideal for users who want to supply logic

signals following a 3.3V CMOS standard but have an alternate logic level output that is used for other applications

such as JTAG programming.

1 Functional Description

The PmodLVLSHFT translates logic signals between two user supplied voltage levels. Users can use a small object

such as a pen or a screwdriver to adjust the switches for the direction of the voltage translation.

2 Interfacing with the Pmod

The PmodLVLSHFT communicates with the host board via GPIO. Users can supply any form of digital signals to

either end of the Pmod and have them translated to the other voltage level. Switches are provided to indicate the

direction of the voltage translation. A switch pushed to the left side (green) towards the pin header translates

voltages from VCCB to VCCA; a switch on the right side (yellow) towards the JTAG header translates from VCCA to

VCCB.

The PmodLVLSHFT.

 Digital logic level shifter

 Translate logic signals between two user

supplied voltage levels

 2×7 JTAG header

 8 miniature switches to dictate logic level

conversion

 Voltage range between 1.8V and 5.5V

 Small PCB size for flexible designs 1.8 in ×

0.8 in (4.6 cm × 2.0 cm)

 12-pin Pmod port with GPIO interface

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300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodLVLSHFT™ Reference Manual Revised April 12, 2016 This manual applies to the PmodLVLSHFT rev. B Overview The Digilent PmodLVLSHFT is a digital logic level shifter. This module is ideal for users who want to supply logic signals following a 3.3V CMOS standard but have an alternate logic level output that is used for other applications such as JTAG programming.
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PmodLVLSHFT™ Reference Manual Figure 1. Switches indicating the voltage direction.
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PmodLVLSHFT™ Reference Manual Any external power applied to the PmodLVLSHFT must be within 1.8V and 5.5V. 3 Physical Dimensions The pins on the pin header are spaced 100 mil apart. The PCB is 1.75 inches long on the sides parallel to the pins on the pin header and 0.8 inches long on the sides perpendicular to the pin header. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.