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邏輯和電壓轉換
電壓轉換器及電平移位器
電壓轉換器

LSF0108

現行

八路雙向多電壓位準轉換器

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產品規格表

LSF0108

現行
立即訂購

產品詳細資料

Bits (#) 8 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.65 Vin (max) (V) 4.9 Vout (min) (V) 1.25 Vout (max) (V) 5.5 Applications GPIO, I2C, JTAG, MDIO, SDIO, SMBus, SPI, UART Features Output enable, Wettable flanks package Prop delay (ns) 2.2 Technology family LSF Supply current (max) (mA) 0.0015 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 8 Data rate (max) (Mbps) 200 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 0.65 Vin (max) (V) 4.9 Vout (min) (V) 1.25 Vout (max) (V) 5.5 Applications GPIO, I2C, JTAG, MDIO, SDIO, SMBus, SPI, UART Features Output enable, Wettable flanks package Prop delay (ns) 2.2 Technology family LSF Supply current (max) (mA) 0.0015 Rating Catalog Operating temperature range (°C) -40 to 125
TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm) VSSOP (DGS) 20 24.99 mm² (5.1 mm × 4.9 mm) VQFN (RKS) 20 11.25 mm² (4.5 mm × 2.5 mm)
  • Provides bidirectional voltage translation with no direction pin
  • Supports up to 100-MHz up translation and greater than 100-MHz down translation at ≤ 30 pF capacitive load and up To 40-MHz up or down translation at 50 pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.65 V ↔ 1.8/2.5/3.3/5 V
    • 0.95 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 pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100 mA per JESD 17
  • –40°C to 125°C operating temperature range
  • Provides bidirectional voltage translation with no direction pin
  • Supports up to 100-MHz up translation and greater than 100-MHz down translation at ≤ 30 pF capacitive load and up To 40-MHz up or down translation at 50 pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.65 V ↔ 1.8/2.5/3.3/5 V
    • 0.95 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 pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100 mA per JESD 17
  • –40°C to 125°C operating temperature range

The LSF family of devices supports bidirectional voltage translation without the need for DIR pin which minimizes system effort (for PMBus, I 2C, SMBus, and so forth). The LSF family of devices supports up to 100-MHz up translation and greater than 100-MHz down translation at ≤ 30 pF capacitive load and up to 40-MHz up or down translation at 50 pF capacitive load which allows the LSF family to support more consumer or telecom interfaces (MDIO or SDIO).

LSF family supports 5-V tolerance on I/O port which makes it compatible with TTL levels in industrial and telecom applications. The LSF family is able to set up different voltage translation levels on each channel which makes it very flexible.

The LSF family of devices supports bidirectional voltage translation without the need for DIR pin which minimizes system effort (for PMBus, I 2C, SMBus, and so forth). The LSF family of devices supports up to 100-MHz up translation and greater than 100-MHz down translation at ≤ 30 pF capacitive load and up to 40-MHz up or down translation at 50 pF capacitive load which allows the LSF family to support more consumer or telecom interfaces (MDIO or SDIO).

LSF family supports 5-V tolerance on I/O port which makes it compatible with TTL levels in industrial and telecom applications. The LSF family is able to set up different voltage translation levels on each channel which makes it very flexible.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LSF0108 Channel Auto-Bidirectional Multi-Voltage Level Translator for Open-Drain datasheet (Rev. M) PDF | HTML 2023/4/21
選擇指南 Logic Guide (Rev. AC) PDF | HTML 2025/11/13
應用說明 Top Questions About Auto Bi-Direction LSF Family Translators PDF | HTML 2024/12/26
應用說明 Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 2024/7/12
應用說明 Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024/7/3
Application brief Integrated vs. Discrete Open Drain Level Translation PDF | HTML 2024/1/9
Application brief Future-Proofing Your Level Shifter Design with TI's Dual Footprint Packages PDF | HTML 2023/9/5
選擇指南 Voltage Translation Buying Guide (Rev. A) 2021/4/15
應用說明 Factors Affecting VOL for TXS and LSF Auto-bidirectional Translation Devices 2017/11/19
應用說明 Biasing Requirements for TXS, TXB, and LSF Auto-Bidirectional Translators 2017/10/30
應用說明 Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) 2015/4/30
應用說明 Voltage-Level Translation With the LSF Family (Rev. B) 2015/3/12
應用說明 Selecting the Right Level Translation Solution (Rev. A) 2004/6/22

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

14-24-LOGIC-EVM — 適用於 14 針腳至 24 針腳 D、DB、DGV、DW、DYY、NS 和 PW 封裝的邏輯產品通用評估模組

14-24-LOGIC-EVM 評估模組 (EVM) 設計用於支援任何 14 針腳至 24 針腳 D、DW、DB、NS、PW、DYY 或 DGV 封裝的任何邏輯裝置。

使用指南: PDF | HTML
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開發板

LSF-EVM — 1 至 8 位元 LSF 轉換器系列評估模組

LSF 系列裝置為支援 0.95V 與 5V 電壓範圍的電平轉換器，並提供無需方向接腳的多電壓雙向轉換。

LSF-EVM 隨附 LSF0108PWR 裝置，具備與 LSF0101DRYR、LSF0102DCTR 和 LSF0204PWR 裝置相容的著陸模式。

LSF-EVM 透過減少資料傳輸速率超過 100MHz 的反射，最適合高速轉換。此外，由於提供多個連線介面，且組裝了可透過跨接器連接輕鬆連接或中斷的上拉，因此電路板設計可讓您輕鬆進行評估。

使用指南: PDF
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模擬型號

LSF0108 IBIS Model (Rev. A)

SDLM022A.ZIP (56 KB) - IBIS 模型
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TSSOP (PW) 20 Ultra Librarian
VSSOP (DGS) 20 Ultra Librarian
VQFN (RKS) 20 Ultra Librarian
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