74ABT245D,623

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-power consumption, bidirectional data transfer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Input Capacitance: 4pF
• Output Capacitance: 8pF
• Propagation Delay Time: 3.5ns (max)
• Output Current: ±24mA

Detailed Pin Configuration

The 74ABT245D,623 IC has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Output Enable Control
2. A1 - Data Input/Output
3. B1 - Data Input/Output
4. A2 - Data Input/Output
5. B2 - Data Input/Output
6. A3 - Data Input/Output
7. B3 - Data Input/Output
8. A4 - Data Input/Output
9. B4 - Data Input/Output
10. GND (Ground) - Ground Reference
11. B5 - Data Input/Output
12. A5 - Data Input/Output
13. B6 - Data Input/Output
14. A6 - Data Input/Output
15. B7 - Data Input/Output
16. A7 - Data Input/Output
17. B8 - Data Input/Output
18. A8 - Data Input/Output
19. VCC (Supply Voltage) - Positive Supply Voltage
20. DIR (Direction Control) - Direction Control

Functional Features

• Bidirectional data transfer between two voltage domains
• High-speed operation with minimal propagation delay
• Output enable control for disabling the outputs
• Direction control for selecting the data flow direction
• Compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels
• Low-power consumption

Advantages and Disadvantages

Advantages: - High-speed data transfer - Bidirectional functionality - Compatibility with different logic levels - Low-power consumption

Disadvantages: - Limited voltage range (4.5V to 5.5V) - Propagation delay may affect timing-sensitive applications

Working Principles

The 74ABT245D,623 is a level shifter and bus transceiver IC that allows bidirectional data transfer between two voltage domains. It operates by converting the input signals from one logic level to another, enabling communication between devices operating at different voltage levels. The direction control pin determines the data flow direction, while the output enable pin enables or disables the outputs. The IC is designed to operate at high speeds with minimal propagation delay.

Detailed Application Field Plans

The 74ABT245D,623 IC finds applications in various digital systems where there is a need to interface components operating at different voltage levels. Some common application fields include:

1. Microcontroller Interfacing: The IC can be used to connect microcontrollers operating at different voltage levels, allowing them to communicate seamlessly.

2. Bus Transceivers: It can be employed as a bidirectional buffer for data buses in systems such as computers, embedded systems, and communication devices.

3. Level Shifting: The IC facilitates level shifting between different voltage domains, enabling compatibility between devices with varying logic levels.

4. Signal Conversion: It can be utilized to convert signals from TTL to CMOS or vice versa, ensuring proper signal integrity and communication.

Detailed and Complete Alternative Models

1. SN74LVC245A: This IC is a similar bidirectional bus transceiver with 3-state outputs and operates at a wider voltage range of 1.65V to 5.5V.

2. CD4508B: This IC is a dual 4-bit latch with 3-state outputs, suitable for applications requiring latch functionality along with bidirectional data transfer.

3. MC74VHC245: This IC is an octal bus transceiver with 3-state outputs, offering high-speed operation and compatibility with various logic families.

4. 74HCT245: This IC is an octal bus transceiver with non-inverting 3-state outputs, designed for use in systems with mixed voltage levels.

These alternative models provide similar functionality to the 74ABT245D,623 and can be considered based on specific application requirements.