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LSF0204

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4-Bit Bidirectional Multi-Voltage Level Translator for Open-Drain & Push- Pull

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Data sheet

LSF0204

ACTIVE
Data sheet Order now

Product details

Bits (#) 4 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.8 Vin (max) (V) 4.5 Vout (min) (V) 1.8 Vout (max) (V) 5.5 Applications GPIO, I2C, JTAG, MDIO, SDIO, SMBus, SPI, UART Features Output enable, Partial power down (Ioff) Prop delay (ns) 6.7 Technology family LSF Supply current (max) (mA) 0.004 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 4 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.8 Vin (max) (V) 4.5 Vout (min) (V) 1.8 Vout (max) (V) 5.5 Applications GPIO, I2C, JTAG, MDIO, SDIO, SMBus, SPI, UART Features Output enable, Partial power down (Ioff) Prop delay (ns) 6.7 Technology family LSF Supply current (max) (mA) 0.004 Rating Catalog Operating temperature range (°C) -40 to 125
UQFN (RUT) 12 3.4 mm² (2 mm × 1.7 mm) DSBGA (YZP) 12 3.9375 mm² (— mm × — mm) VQFN (RGY) 14 12.25 mm² (3.5 mm × 3.5 mm) TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm)
  • 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 Ioff, 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 Ron 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)
  • 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 Ioff, 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 Ron 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)

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 Ron 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.

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 Ron 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.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LSF0204x 4-Bits Bidirectional Multi-Voltage Level Translator for Open-Drain and Push-Pull Application datasheet (Rev. H) PDF | HTML Apr 29, 2021
Application note Top Questions About Auto Bi-Direction LSF Family Translators PDF | HTML Dec 26, 2024
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML Jul 12, 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML Jul 3, 2024
Selection guide Voltage Translation Buying Guide (Rev. A) Apr 15, 2021
Application note Biasing Requirements for TXS, TXB, and LSF Auto-Bidirectional Translators Oct 30, 2017
Application note Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) Apr 30, 2015
Application note Voltage-Level Translation With the LSF Family (Rev. B) Mar 12, 2015
Application note Selecting the Right Level Translation Solution (Rev. A) Jun 22, 2004

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Package Pins CAD symbols, footprints & 3D models
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