Introduction
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2
SLVUB53 – July 2017
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Copyright © 2017, Texas Instruments Incorporated
LSF-EVM Hardware User's Guide
1
Introduction
The Texas Instruments' LSF-EVM aids in the evaluation of the operation and performance of the LSF
family of auto-bidirectional multi-voltage level translators. The LSF family of devices are level translators
that support a voltage range of 0.95 V to 5.5 V and provide multi-voltage bidirectional translation without
the need for a direction pin.
The LSF-EVM comes populated with the LSF0108PWR device and has landing patterns that are
compatible with the LSF0101DRYR, LSF0102DCTR, and LSF0204PWR devices.
The LSF-EVM is optimized for high-speed translation by reducing reflections for data rates greater than
100 MHz. Additionally, the design of the board enables simple evaluation as multiple connection interfaces
are available and pullups are populated which is easily connected or disconnected by using shunt
jumpers.
2
Hardware Description
2.1
Board View and Supported Devices
The LSF-EVM comes populated with the LSF0108 device in the PW (TSSOP) package; however, this
EVM can evaluate additional devices as well.
Figure 1
shows the EVM populated with the LSF0108PWR
device, and
Table 1
lists all of the part numbers and packages that are compatible with the LSF-EVM.
Figure 1. LSF-EVM With LSF0108PW Populated
Table 1. Compatible Parts and Packages for LSF-EVM
Part Number
Packages
LSF0101DRYR
SON (DRY) - See
Figure 2
for device pad location
LSF0102DCTR
SSOP (DCT) - See
Figure 3
for device pad location
LSF0204PWR
TSSOP (PW) - See
Figure 4
for device pad location
LSF0204DPWR
TSSOP (PW) - See
Figure 4
for device pad location
LSF0108PWR
TSSOP (PW) - default populated device