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SN74LVC8T245-Q1

활성

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SN74LVC8T245-Q1

활성
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제품 상세 정보

Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, PCM, SPI, UART, JTAG, I2S Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 6.6 Technology family LVC Supply current (max) (mA) 0.025 Rating Automotive Operating temperature range (°C) -40 to 125
Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, PCM, SPI, UART, JTAG, I2S Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 6.6 Technology family LVC Supply current (max) (mA) 0.025 Rating Automotive Operating temperature range (°C) -40 to 125
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • AEC-Q100 qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • Robust, glitch-free power supply sequencing
  • Control inputs VIH/VIL levels are referenced to VCCA voltage
  • VCC isolation feature and VCC disconnect feature
    • if either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high- impedance state
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • Operating temperature from -40°C to 125°C
  • ESD protection exceeds JESD 22
    • 4000V Human-Body Model (A114-A)
    • 1000V Charged-Device Model (C101)
  • AEC-Q100 qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • Robust, glitch-free power supply sequencing
  • Control inputs VIH/VIL levels are referenced to VCCA voltage
  • VCC isolation feature and VCC disconnect feature
    • if either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high- impedance state
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • Operating temperature from -40°C to 125°C
  • ESD protection exceeds JESD 22
    • 4000V Human-Body Model (A114-A)
    • 1000V Charged-Device Model (C101)

The SN74LVC8T245-Q1 is an eight bit non-inverting bus transceiver with configurable dual power supply rails that enables bidirectional voltage level translation. The SN74LVC8T245-Q1 is optimized to operate with VCCA and VCCB set at 1.65V to 5.5V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5.5V voltage nodes.

The SN74LVC8T245-Q1 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated.

The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC input is at GND, then all outputs are in the high-impedance state. To put the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The SN74LVC8T245-Q1 is designed so that the control pins (DIR and OE) are supplied by VCCA.

The SN74LVC8T245-Q1 is an eight bit non-inverting bus transceiver with configurable dual power supply rails that enables bidirectional voltage level translation. The SN74LVC8T245-Q1 is optimized to operate with VCCA and VCCB set at 1.65V to 5.5V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5.5V voltage nodes.

The SN74LVC8T245-Q1 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated.

The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC input is at GND, then all outputs are in the high-impedance state. To put the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The SN74LVC8T245-Q1 is designed so that the control pins (DIR and OE) are supplied by VCCA.
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기술 자료

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32개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet SN74LVC8T245-Q1 Automotive 8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs datasheet (Rev. B) PDF | HTML 2026/05/29
Selection guide Logic Guide (Rev. AC) PDF | HTML 2025/11/13
Application note Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 2024/10/02
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 2024/07/12
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024/07/03
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021/07/26
Selection guide Voltage Translation Buying Guide (Rev. A) 2021/04/15
Selection guide Little Logic Guide 2018 (Rev. G) 2018/07/06
Application note How to Select Little Logic (Rev. A) 2016/07/26
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015/12/02
More literature Automotive Logic Devices Brochure 2014/08/27
User guide LOGIC Pocket Data Book (Rev. B) 2007/01/16
Product overview Design Summary for WCSP Little Logic (Rev. B) 2004/11/04
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004/07/08
Application note Selecting the Right Level Translation Solution (Rev. A) 2004/06/22
User guide Signal Switch Data Book (Rev. A) 2003/11/14
Application note Use of the CMOS Unbuffered Inverter in Oscillator Circuits 2003/11/06
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 2002/12/18
Application note Texas Instruments Little Logic Application Report 2002/11/01
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002/08/29
More literature Standard Linear & Logic for PCs, Servers & Motherboards 2002/06/13
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) 2002/05/22
Application note Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 2002/05/10
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS 2002/03/27
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 1997/12/01
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997/08/01
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 1997/06/01
Application note LVC Characterization Information 1996/12/01
Application note Input and Output Characteristics of Digital Integrated Circuits 1996/10/01
Application note Live Insertion 1996/10/01
Design guide Low-Voltage Logic (LVC) Designer's Guide 1996/09/01
Application note Understanding Advanced Bus-Interface Products Design Guide 1996/05/01

설계 및 개발

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평가 보드

14-24-LOGIC-EVM — 14핀~24핀 D, DB, DGV, DW, DYY, NS 및 PW 패키지용 로직 제품 일반 평가 모듈

14-24-LOGIC-EVM 평가 모듈(EVM)은 14핀~24핀 D, DW, DB, NS, PW, DYY 또는 DGV 패키지에 있는 모든 로직 장치를 지원하도록 설계되었습니다.

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평가 보드

AVCLVCDIRCNTRL-EVM — AVC 및 LVC를 지원하는 방향 제어 양방향 변환 디바이스를 위한 일반 EVM

일반 EVM은 2개, 4개 및 8개 채널 LVC 및 AVC 방향 제어 변환 장치를 지원하도록 설계했습니다. 또한 동일한 개수의 채널에서 버스 홀드 및 차량용 -Q1 장치를 지원합니다. AVC는 구동 강도가 더 낮은 12mA인 저전압 변환 장치입니다. LVC는 구동 강도가 더 높은 32mA로, 1.65~5.5V의 더 높은 전압 변환 장치입니다.

사용 설명서: PDF
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평가 보드

TXV0106-EVM — TXV0106 평가 모듈

TXV0106 평가 모듈(EVM)은 TXV0106 장치의 기능 및 성능 평가를 위한 플랫폼으로 사용이 간편합니다. EVM에는 여러 애플리케이션을 위해 장치를 구성할 수 있는 선택적 회로와 점퍼가 있습니다. 이 장치는 고정 및 방향 제어 낮은 스큐, 저지터 전압 변환에 대한 옵션을 제공합니다. 출력은 전용 출력 활성화(OE) 제어 기능을 통해 활성화 및 비활성화할 수 있습니다.
사용 설명서: PDF | HTML
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평가 보드

TXV0108-EVM — TXV0108 평가 모듈

TXV0108 평가 모듈(EVM)은 TXV0108 장치의 기능 및 성능 평가를 위한 플랫폼으로 사용이 간편합니다. EVM에는 여러 애플리케이션을 위해 장치를 구성할 수 있는 선택적 회로와 점퍼가 있습니다. 이 장치는 고정 및 방향 제어 낮은 스큐, 저지터 전압 변환에 대한 옵션을 제공합니다. 출력은 전용 출력 활성화(OE) 제어 기능을 통해 활성화 및 비활성화할 수 있습니다.
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포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
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  • 조립 위치

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