74HCT245BQ-Q100X

Product Overview

Category

The 74HCT245BQ-Q100X belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for signal level shifting and voltage translation applications.

Characteristics

• High-speed CMOS technology
• Wide operating voltage range: 2.0V to 6.0V
• Low power consumption
• Schmitt-trigger action on all inputs
• Balanced propagation delays
• Direct interface with TTL levels
• Multiple package options available

Package

The 74HCT245BQ-Q100X is available in a standard 20-pin SSOP (Shrink Small Outline Package) package.

Essence

The essence of the 74HCT245BQ-Q100X lies in its ability to provide bidirectional voltage level shifting between different logic families, such as TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor).

Packaging/Quantity

The 74HCT245BQ-Q100X is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• Input Voltage Range: GND to VCC
• Output Voltage Range: GND to VCC
• Operating Temperature Range: -40°C to +125°C
• Input Capacitance: 3.5pF
• Output Capacitance: 6pF
• Propagation Delay: 10ns (max)
• Output Current: ±6mA

Detailed Pin Configuration

The 74HCT245BQ-Q100X has a total of 20 pins, which are assigned specific functions as follows:

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

Functional Features

• Bidirectional voltage level shifting between TTL and CMOS logic families.
• Schmitt-trigger action on all inputs for improved noise immunity.
• Balanced propagation delays ensure accurate signal transmission.
• Direct interface with TTL levels simplifies integration into existing systems.
• Low power consumption makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• High-speed CMOS technology enables fast data transfer.
• Schmitt-trigger action enhances noise immunity.
• Multiple package options provide flexibility in design.

Disadvantages

• Limited number of input/output channels (16 in total).
• Not suitable for applications requiring higher output currents.

Working Principles

The 74HCT245BQ-Q100X operates by receiving input signals from one logic family (e.g., TTL) and translating them to the voltage levels compatible with another logic family (e.g., CMOS). The direction of translation is controlled by the DIR pin. When the DIR pin is high, the data flows from A1-A8 to B1-B8, and when it is low, the data flows in the opposite direction.

Detailed Application Field Plans

The 74HCT245BQ-Q100X finds applications in various fields, including:

1. Microcontroller interfacing
2. Level shifting between different logic families
3. Data communication systems
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74HCT245BQ-Q100X are:

1. SN74LVC245A - Texas Instruments
2. MC74LVX245 - ON Semiconductor
3. CD74HCT245 - Texas Instruments
4. 74HC245 - NXP Semiconductors
5. TC74HCT245AF - Toshiba

These alternative models