Texas Instruments LSF0204D Bedienungsanleitung

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

Push-Pull Application

1 Features

•Provides bidirectional voltage translation with no

direction terminal

•Supports up to 100-MHz up translation and greater

than 100-MHz down translation

at ≤ 30-pF capacitor load and up to 40-MHz up/

down translation at 50-pF capacitor load

•Supports I

off

, partial power-down mode (refer to

Feature Description)

•Allows bidirectional voltage level translation

between

–0.8 V ↔ 1.8, 2.5, 3.3, 5 V

–1.2 V ↔ 1.8, 2.5, 3.3, 5 V

–1.8 V ↔ 2.5, 3.3, 5 V

–2.5 V ↔ 3.3, 5 V

–3.3 V ↔ 5 V

•Low standby current

•5 V Tolerance I/O port to support TTL

•Low R

on

provides less signal distortion

•High-impedance I/O terminals for EN = Low

•Flow-through pinout for easy PCB trace routing

•Latch-up performance exceeds 100 mA per

JESD17

•–40°C to 125°C operating temperature range

•ESD performance tested per JESD 22

–2000-V human-body model (A114-B, Class II)

–200-V machine model (A115-A)

–1000-V charged-device model (C101)

2 Applications

•GPIO, MDIO, PMBus, SMBus, SDIO, UART, I

2

C,

and other interfaces in telecom infrastructure

•Industrial

•Automotive

•Personal computing

3 Description

The LSF family consists of bidirectional voltage

level translators that operate from 0.8 V to 4.5 V

(Vref_A) and 1.8 V to 5.5 V (Vref_B). This range

allows for bidirectional voltage translations between

0.8 V and 5.0 V without the need for a direction

terminal in open-drain or push-pull applications. The

LSF family supports level translation applications with

transmission speeds greater than 100 MHz for open-

drain systems that utilize a 15-pF capacitance and

165-Ω pull-up resistor.

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

the ON-state and a low resistance connection exists

between the An and Bn ports. The low R

on

of the

switch allows connections to be made with minimal

propagation delay and signal distortion. The voltage

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

can be pulled up to any level between Vref_A and

5 V. This functionality allows a seamless translation

between higher and lower voltages selected by the

user without the need for directional control.

Device Information

(1)

PART NUMBERPACKAGEBODY SIZE (NOM)

LSF0204x

TSSOP (14)5.00 mm × 4.40 mm

UQFN (12)2.00 mm × 1.70 mm

VQFN (14)3.50 mm × 3.50 mm

DSBGA (12)1.90 mm × 1.40 mm

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

the end of the datasheet.

Vref_A

Vref_B

EN

GND

A1

A2

A3

A4

B1

B2

B3

B4

LSF0204

SW

SW

SW

SW

Simplified Schematic

LSF0204, LSF0204D

SLVSCP5H – JULY 2014 – REVISED APRIL 2021

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.

Produktspezifikationen