SN74LVC245ARGYR

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SN74LVC245ARGYR

IC TXRX NON-INVERT 3.6V 20VQFN

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規格

Supplier Texas Instruments,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74LVC
ProductStatus Active
LogicType Transceiver, Non-Inverting
NumberofElements 1
NumberofBitsperElement 8
OutputType 3-State
Current-OutputHighLow 24mA, 24mA
Voltage-Supply 1.65V ~ 3.6V
OperatingTemperature -40°C ~ 125°C (TA)
MountingType Surface Mount
Package/Case 20-VFQFN Exposed Pad

概述

Description

SN74LVC245ARGYR is an octal bidirectional bus transceiver from TI’s LVC family. It provides an 8-bit bidirectional data path between two buses (A1–A8 and B1–B8) with tri-state outputs. Data flow is controlled by DIR (direction) and OE (output enable). When OE is active and the chosen direction is selected, data from the source bus is driven onto the destination bus; when OE is inactive, all outputs are high-impedance. The device operates from Vcc = 1.65–3.6 V, making it suitable for 3.3 V logic and interfacing within 3.3 V systems. It features CMOS input thresholds, fast CMOS performance, and low static current in idle. Typical uses include buffering/isolation of a microcontroller bus, peripheral interfacing, memory-expansion buffering, and safe data transfer between 3.3 V domains. Packaging for this variant is RoHS-compliant, in a 20-pin package (suffix ARGYR).

Features

Here are the typical features of SN74LVC245ARGYR:
- Octal (8-bit) bidirectional bus transceiver with 3-state outputs
- Direction control: DIR selects data flow (A→B or B→A)
- Output enable: OE is active-low to enable/disable outputs
- Vcc operating range: 1.65 V to 3.6 V (LVC family)
- Ioff (partial-power-down) protection to prevent back-powering when Vcc is 0
- Outputs can be tri-stated for bus sharing; suitable for daisy-chain/bus systems
- Low-power CMOS technology with relatively fast switching
- Packaging indicated by ARGYR suffix (tape-and-reel) and related form factors
Note: Exact drive strength and timing specs are in the datasheet.

Package

20-pin TSSOP (Thin Shrink Small-Outline) package. Pb-free/RoHS-compliant, tape-and-reel packaging (suffix ARGYR indicates RoHS Pb-free and tape‑reel).

Pinout

- Pin count: 20 pins (DIP/SOIC/TSSOP, etc., as packaged with the -YR suffix).
- Function: Octal bidirectional bus transceiver with 3-state outputs. It has two 8-bit buses, A (A1–A8) and B (B1–B8). The DIR input selects the data transfer direction (A→B or B→A); the OE input (Output Enable) tri-states the eight outputs when active.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational technology company that designs and manufactures semiconductors and related components (analog, digital, mixed-signal ICs). One of the world’s largest semiconductor makers, headquartered in Dallas, Texas.

Application

- Octal bidirectional bus transceiver with 3-state outputs
- Applications: data buffering and isolation for shared buses
- Level shifting between 1.65–3.6 V logic domains
- Interfaces microprocessors/microcontrollers with memories, peripherals, DACs/ADCs
- Used on backplanes/system buses and for bus multiplexing where multiple devices share a data path

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