IDT74LVC245APYG8

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: Bi-directional, 8-bit, voltage level translation
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Facilitates bidirectional voltage level translation between different logic families
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Family: LVC (Low Voltage CMOS)
• Number of Channels: 8
• Input/Output Compatibility: TTL, CMOS
• Output Drive Capability: ±24mA
• Propagation Delay: 4.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. OE (Output Enable)
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. GND (Ground)
9. B4 (Data Input/Output)
10. A4 (Data Input/Output)
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. VCC (Supply Voltage)
18. DIR (Direction Control)
19. B8 (Data Input/Output)
20. A8 (Data Input/Output)

Functional Features

• Bi-directional voltage level translation between different logic families
• Enables interfacing between devices operating at different voltage levels
• Supports bidirectional data flow with direction control pin (DIR)
• Low power consumption due to CMOS technology
• High-speed operation with low propagation delay

Advantages

• Wide supply voltage range allows compatibility with various systems
• Bidirectional functionality simplifies circuit design and reduces component count
• High output drive capability enables driving capacitive loads
• Small package size saves board space
• Low power consumption enhances battery life in portable applications

Disadvantages

• Limited number of channels (8) may not be sufficient for complex systems
• Propagation delay may affect timing critical applications
• Requires careful consideration of voltage level compatibility to avoid damage

Working Principles

The IDT74LVC245APYG8 is a bidirectional level shifter/transceiver IC. It facilitates the translation of voltage levels between different logic families, such as TTL and CMOS. The DIR pin controls the direction of data flow, allowing seamless bidirectional communication. The IC operates within a wide supply voltage range and utilizes CMOS technology for low power consumption. It offers high-speed operation with minimal propagation delay.

Detailed Application Field Plans

1. Interfacing between microcontrollers operating at different voltage levels
2. Level shifting in communication interfaces (e.g., UART, SPI, I2C)
3. Voltage translation in mixed-signal systems
4. Signal conversion between legacy and modern logic families
5. Buffering and signal conditioning in industrial automation

Detailed and Complete Alternative Models

1. SN74LVC245A by Texas Instruments
2. MC74LVX245 by ON Semiconductor
3. 74LVC245 by NXP Semiconductors
4. CD74HCT245 by Texas Instruments
5. 74HC245 by Nexperia

(Note: This is not an exhaustive list and there are several other alternative models available in the market.)

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