Vref_A

Vref_B

EN

GND

A1

A2

A3

A4

B1

B2

B3

B4

LSF0204

SW

SW

SW

SW

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LSF0204, LSF0204D

SLVSCP5D – JULY 2014 – REVISED DECEMBER 2015

LSF0204x 4-Bits Bidirectional Multi-Voltage Level Translator for Open-Drain and Push-

Pull Application

1 Features

3 Description

The LSF family consists of bidirectional voltage level

1

•

Provides Bidirectional Voltage Translation With No

translators that operate from 0.8 V to 4.5 V (Vref_A)

Direction Terminal

and 1.8 V to 5.5 V (Vref_B). This range allows for

•

Supports up to 100-MHz up Translation and

bidirectional voltage translations between 0.8 V and

Greater Than 100-MHz Down Translation

5.0 V without the need for a direction terminal in

at

≤ 30-pF Capacitor Load and up to 40-MHz

open-drain or push-pull applications. The LSF family

Up/Down Translation at 50-pF Capacitor Load

supports

level

translation

applications

with

transmission speeds greater than 100 MHz for open-

•

drain systems that utilize a 15-pF capacitance and

Feature Description)

165-

Ω pull-up resistor.

•

Allows Bidirectional Voltage Level Translation

When the An or Bn port is LOW, the switch is in the

Between

ON-state and a low resistance connection exists

–

0.8 V

↔ 1.8, 2.5, 3.3, 5 V

–

1.2 V

↔ 1.8, 2.5, 3.3, 5 V

switch allows connections to be made with minimal

propagation delay and signal distortion. The voltage

–

1.8 V

↔ 2.5, 3.3, 5 V

on the A or B side will be limited to Vref_A and can

–

2.5 V

↔ 3.3, 5 V

be pulled up to any level between Vref_A and 5 V.

–

3.3 V

↔ 5 V

This

functionality

allows

a

seamless

translation

•

Low Standby Current

between higher and lower voltages selected by the

user without the need for directional control.

•

5 V Tolerance I/O Port to Support TTL

•

Device Information(1)

•

High-Impedance I/O Terminals For EN = Low

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Flow-Through Pinout for Ease PCB Trace Routing

TSSOP (14)

5.00 mm × 4.40 mm

•

Latch-Up Performance Exceeds 100 mA Per

UQFN (12)

2.00 mm × 1.70 mm

LSF0204x

JESD17

VQFN (14)

3.50 mm × 3.50 mm

•

–40°C to 125°C Operating Temperature Range

DSBGA (12)

1.90 mm × 1.40 mm

•

ESD Performance Tested Per JESD 22

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

–

2000-V Human-Body Model (A114-B, Class II)

–

200-V Machine Model (A115-A)

Simplified Schematic

–

1000-V Charged-Device Model (C101)

2 Applications

•

and Other Interfaces in Telecom Infrastructure

•

Industrial

•

Automotive

•

Personal Computing

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.