SN74LVC4245ADBR

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SN74LVC4245ADBR

+BOM

IC TRNSLTR BIDIRECTIONAL 24SSOP

  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #SN74LVC4245ADBR

  • パッケージ SSOP (DB)-24

  • 在庫状況7110

365 日間品質保証

7*24 日間の品質保証

90-時間単位のサービス保証

1日間のアフターサービス保証

仕様

属性
Package Tape & Reel (TR),Cut Tape (CT)
Series 74LVC
ProductStatus Active
TranslatorType Voltage Level
ChannelType Bidirectional
NumberofCircuits 1
ChannelsperCircuit 8
Voltage-VCCA 4.5 V ~ 5.5 V
Voltage-VCCB 2.7 V ~ 3.6 V
OutputType Tri-State, Non-Inverted
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 24-SSOP (0.209, 5.30mm Width)

概要

Description

The SN74LVC4245ADBR is an octal bus transceiver designed for asynchronous two-way communications between data buses. It is part of Texas Instruments' LVC family, operating efficiently at low voltage (1.65 V to 3.6 V) while being 5-V tolerant on the I/O ports. This makes it suitable for mixed-voltage environments and level-shifting applications. The device features two separate power-supply rails: VCCA for the A-port side and VCCB for the B-port side, allowing it to translate signals between two levels. It supports a wide range of applications, such as memory interfacing, networking, telecommunication, and consumer electronics. The SN74LVC4245ADBR also includes a direction control (DIR) pin to manage the direction of data flow and an output-enable (OE) pin to control the outputs. Its compact TSSOP package makes it ideal for space-constrained applications. The device is well-regarded for its fast switching speeds, low power consumption, and robust ESD protection, enhancing its reliability in various applications.

Equivalent

The SN74LVC4245ADBR is an 8-bit dual-supply bus transceiver with configurable voltage translation. Equivalent products include:
1. ON Semiconductor NLSX4373: Similar voltage translation and transceiver functions.
2. NXP Semiconductor 74LVC8T245: Provides similar dual-supply bus transceiver features.
3. Microchip Technology 74AVC8T245: Offers comparable functionality with voltage-level shifting.
These alternatives provide similar performance and can be used in place of the SN74LVC4245ADBR for compatible applications.

Features

The SN74LVC4245ADBR is an 8-bit dual-supply bus transceiver designed for asynchronous communication between data buses of different voltage levels. Key features include:
1. Dual-Supply Operation: It supports mixed-voltage systems with V_CCA and V_CCB, allowing operation with one supply voltage at 1.65 V to 3.6 V and the other at 2.3 V to 5.5 V.
2. 8-Bit Transceiver: Facilitates bidirectional data transfer between buses.
3. 3-State Outputs: Ensures high-impedance outputs, allowing multiple devices to share the bus without interference.
4. Direction Control: A direction control pin determines the data flow direction.
5. High-Speed Operation: Features fast propagation delays and high drive capability for performance in demanding applications.
6. Low Power Consumption: Supports power-efficient operations, essential for battery-powered devices.
7. Overvoltage Tolerance: Inputs accept voltages higher than the device's operating voltage, up to 5.5 V, enhancing interfacing flexibility.
8. Latch-Up Performance: Meets JEDEC standard JESD 78, Class II, offering reliable operation in adverse conditions.
These features make it suitable for various applications, including level shifting and voltage translation in digital systems.

Pinout

The SN74LVC4245ADBR is a 24-pin integrated circuit designed as an octal bus transceiver and bidirectional voltage-level translator with 3-state outputs. It is part of Texas Instruments' SN74LVC series and is commonly used to facilitate communication between devices operating at different voltage levels, typically translating between 3.3V and 5V logic levels.
The pin configuration includes:
- 8 data I/O pins (A1 to A8 and B1 to B8) for bidirectional data transfer.
- Control pins such as OE (Output Enable) and DIR (Direction Control) to manage data flow direction and enable/disable outputs.
- VCCA and VCCB supply pins that connect to the voltage levels of the A and B side logic, respectively.
- GND pins for grounding.
- Pins for additional functionality such as the logic supply voltage pins to accommodate the different voltage levels.
This IC is widely used in applications requiring reliable voltage level translation between different subsystems within electronic devices.

Manufacturer

The SN74LVC4245ADBR is manufactured by Texas Instruments Incorporated. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is one of the largest semiconductor companies in the world and is particularly known for its innovative work in analog technologies, embedded processing, and digital signal processing. TI's products are used in numerous applications across different sectors, including consumer electronics, automotive, industrial, and communications.

Application

The SN74LVC4245ADBR is a dual-supply voltage translator and transceiver ideal for applications that require interfacing between different logic levels. Its main application areas include:
1. Mixed-Voltage Systems: Facilitates communication between devices operating at different voltage levels, such as 3.3V and 5V.
2. Microcontroller Interfacing: Connects microcontrollers with peripherals or other digital devices that operate at different voltages.
3. Data Communication: Used in buses and data lines for signal integrity across varying voltage domains.
4. Industrial Systems: Suitable for translating signals in industrial automation and control systems.
5. Consumer Electronics: Enables connectivity between components in devices like smartphones and tablets.
These applications take advantage of the chip's ability to efficiently translate and buffer signals across different voltage levels.

Package

The SN74LVC4245ADBR is an integrated circuit (IC) packaged in a TSSOP-24 (Thin Shrink Small Outline Package with 24 pins). It's designed for level shifting and voltage translation between different logic levels.

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