LSF0204 Datasheet, PDF (1/32 Pages) Texas Instruments – 4-Bits Bidirectional Multi-Voltage Level Translator

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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
•1 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 Ease 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, I²C,
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 NUMBER
PACKAGE
BODY SIZE (NOM)
TSSOP (14)
5.00 mm × 4.40 mm
LSF0204x
UQFN (12)
VQFN (14)
2.00 mm × 1.70 mm
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.
Simplified Schematic
Vref_A
Vref_B
LSF0204
EN
A1
SW
B1
A2
SW
B2
A3
SW
B3
A4
SW
B4
GND
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.