SN74LXC8T245RHLR
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Texas Instruments SN74LXC8T245RHLR

Manufacturer No:
SN74LXC8T245RHLR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
8-BIT DUAL-SUPPLY BUS TRANSCEIVE
Delivery:
Payment:
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Product Introduction

Overview

The SN74LVC8T245RHLR, produced by Texas Instruments, is an 8-bit dual-supply bus transceiver designed for bidirectional voltage level translation. This device is optimized to operate with configurable dual power supply rails, allowing each port to function over a wide voltage range from 1.65 V to 5.5 V. It is particularly useful for asynchronous communication between two data buses, enabling universal low-voltage bidirectional translation between various voltage nodes such as 1.8 V, 2.5 V, 3.3 V, and 5.5 V.

Key Specifications

Parameter Description
Number of Bits 8-bit
Supply Voltage Range 1.65 V to 5.5 V (VCCA and VCCB)
Data Rate Up to 500 Mb/s
Output Type 3-state outputs
Package Options DBV (SSOP, 24), DBQ (SSOP, 24), PW (TSSOP, 24), DGV (TVSOP, 24), RHL (VQFN, 24)
Operating Temperature Range -40°C to 85°C
ESD Protection 4000-V Human-Body Model, 100-V Machine Model, 1000-V Charged-Device Model
Latch-up Performance Exceeds 100 mA per JESD 78, class II

Key Features

  • Fully configurable dual-rail design allowing each port to operate over the full 1.65-V to 5.5-V power-supply range.
  • Control inputs VIH/VIL levels are referenced to VCCA voltage.
  • VCC isolation feature – if either VCC input is at GND, all outputs are in the high-impedance state.
  • Latch-up performance exceeds 100 mA per JESD 78, class II.
  • ESD protection exceeds JESD 22 standards (4000-V Human-Body Model, 100-V Machine Model, 1000-V Charged-Device Model).
  • Partial-power-down applications supported using Ioff circuitry to prevent damaging current backflow.

Applications

  • Personal electronic devices
  • Industrial applications
  • Enterprise systems
  • Telecom equipment

Q & A

  1. What is the primary function of the SN74LVC8T245RHLR?

    The SN74LVC8T245RHLR is an 8-bit dual-supply bus transceiver designed for bidirectional voltage level translation between two data buses.

  2. What is the supply voltage range for this device?

    The device operates with supply voltages ranging from 1.65 V to 5.5 V for both VCCA and VCCB.

  3. What are the package options available for this component?

    The component is available in DBV (SSOP, 24), DBQ (SSOP, 24), PW (TSSOP, 24), DGV (TVSOP, 24), and RHL (VQFN, 24) packages.

  4. How does the direction-control (DIR) input function?

    The DIR input controls the direction of data transmission; a high on DIR allows data transmission from A to B, and a low on DIR allows data transmission from B to A.

  5. What is the purpose of the output-enable (OE) input?

    The OE input activates or deactivates the output ports; when OE is low, the outputs are enabled, and when OE is high, both output ports are in the high-impedance state.

  6. Does the device support partial-power-down applications?

    Yes, the device is fully specified for partial-power-down applications using Ioff circuitry to prevent damaging current backflow.

  7. What kind of ESD protection does the device offer?

    The device offers ESD protection exceeding JESD 22 standards, including 4000-V Human-Body Model, 100-V Machine Model, and 1000-V Charged-Device Model.

  8. What is the operating temperature range for this component?

    The operating temperature range is from -40°C to 85°C.

  9. How does the VCC isolation feature work?

    If either VCC input is at GND, all outputs are placed in the high-impedance state to prevent unwanted current flow.

  10. What is the significance of the latch-up performance of this device?

    The device's latch-up performance exceeds 100 mA per JESD 78, class II, ensuring robust operation against latch-up conditions.

Product Attributes

Translator Type:Voltage Level
Channel Type:Bidirectional
Number of Circuits:1
Channels per Circuit:8
Voltage - VCCA:1.1 V ~ 5.5 V
Voltage - VCCB:1.1 V ~ 5.5 V
Input Signal:- 
Output Signal:- 
Output Type:Tri-State, Non-Inverted
Data Rate:420Mbps
Operating Temperature:-40°C ~ 125°C (TA)
Features:- 
Mounting Type:Surface Mount
Package / Case:24-VFQFN Exposed Pad
Supplier Device Package:24-VQFN (5.5x3.5)
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Similar Products

Part Number SN74LXC8T245RHLR SN74LXCH8T245RHLR
Manufacturer Texas Instruments Texas Instruments
Product Status Active Active
Translator Type Voltage Level Voltage Level
Channel Type Bidirectional Bidirectional
Number of Circuits 1 1
Channels per Circuit 8 8
Voltage - VCCA 1.1 V ~ 5.5 V 1.1 V ~ 5.5 V
Voltage - VCCB 1.1 V ~ 5.5 V 1.1 V ~ 5.5 V
Input Signal - -
Output Signal - -
Output Type Tri-State, Non-Inverted Non-Inverted
Data Rate 420Mbps 420Mbps
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Features - -
Mounting Type Surface Mount Surface Mount
Package / Case 24-VFQFN Exposed Pad 24-VFQFN Exposed Pad
Supplier Device Package 24-VQFN (5.5x3.5) 24-VQFN (5.5x3.5)

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