Manufacturer Part Number

SN74AHC245DBR

Description

8-bit non-inverting transceiver IC for bidirectional data communication. Allows data transfer between buses or subsystems, featuring a 3-state output so lines can be shared. Designed for high-speed and low-power logic applications. Suitable for general digital circuit and microcontroller interface.

Specifications

Logic type is transceiver and non-inverting.

Has 1 element, each supporting 8 bits.

Power supply voltage: 2V to 5.5V.

Output drive: 8mA (both high and low output states).

Operating temperature range: -40°C to +125°C.

3-state output enables bus interface.

Mounts with surface-mount technology (SMT).

Package: 20-SSOP (Small Shrink Outline Package), 0.209" (5.30mm) width.

Compliant with RoHS3 and unaffected by REACH.

Moisture Sensitivity Level (MSL): 1 (unlimited shelf life at room temperature).

Inventory availability: 5299 units in stock (new, original).

Device Structure

Single device contains one 8-bit wide bidirectional transceiver.

3-state output gates allow connection to a common bus shared by multiple devices.

Non-inverting data path ensures input level logic appears unchanged at output when enabled.

IC comes in a 20-pin SSOP package for compact PCB footprints.

Performance Characteristics

Fast switching for high-speed data buses.

Low power consumption due to advanced CMOS design.

Output drive capability up to 8mA per line supports moderate loads.

Wide supply voltage range (2V to 5.5V) allows flexible circuit design.

Reliable operation over industry-standard temperature ranges.

Application Environments

Used where data buffering and direction control between buses or systems is needed (for example, microcontrollers, FPGAs, memory interfaces).

Common in computing, networking, industrial control, instrumentation, and consumer electronics.

Can be used on boards with tight space constraints due to compact 20-SSOP package.

Designed for surface-mount assembly to modern PCBs.

Selection Guidelines

Choose SN74AHC245DBR when you need an 8-bit bidirectional level buffer for use with logic operating between 2V and 5.5V.

Check current requirements (8mA max per pin).

Ensure the system uses 3-state logic buses.

Verify the package size (20-SSOP) is suitable for your assembly process.

Confirm the device meets environmental and compliance needs such as RoHS3.

Check your system temperature range (-40°C to +125°C).

Usage Considerations

Ensure proper control of the direction and output enable pins to avoid bus contention.

Match supply voltage and logic levels with connected devices.

Observe recommended soldering and mounting procedures for 20-SSOP parts.

Protect unused inputs from floating to avoid unwanted power consumption or noise.

Potential Equivalent/Replacement Models

Direct and alternative compatible models include:

74AHC245PW,118

74VHC245MTCX

74VHC245MTC

If these suggested models do not meet your requirements or are unavailable, please contact the Ariat-Tech sales team for more equivalent products and technical assistance.

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