CD74HC652EN

Product Overview

• Category: Integrated Circuit
• Use: Logic Level Shifter and Translator
• Characteristics: High-Speed, CMOS Technology
• Package: 24-Pin DIP (Dual In-Line Package)
• Essence: Translates signals between different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage Levels: VCC or GND
• Output Voltage Levels: VCC or GND
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. OE (Output Enable) - Active Low Output Enable
2. A0 - Data Input/Output A
3. A1 - Data Input/Output B
4. A2 - Data Input/Output C
5. A3 - Data Input/Output D
6. A4 - Data Input/Output E
7. A5 - Data Input/Output F
8. GND - Ground
9. B5 - Data Input/Output G
10. B4 - Data Input/Output H
11. B3 - Data Input/Output I
12. B2 - Data Input/Output J
13. B1 - Data Input/Output K
14. B0 - Data Input/Output L
15. VCC - Supply Voltage
16. DIR (Direction Control) - Active High Direction Control
17. LE (Latch Enable) - Active High Latch Enable
18. O0 - Data Input/Output M
19. O1 - Data Input/Output N
20. O2 - Data Input/Output O
21. O3 - Data Input/Output P
22. O4 - Data Input/Output Q
23. O5 - Data Input/Output R
24. GND - Ground

Functional Features

• Translates logic levels between two different voltage domains
• Bidirectional data transfer capability
• High-speed operation
• Low power consumption
• Schmitt-trigger inputs for noise immunity
• 3-state outputs for bus-oriented applications

Advantages and Disadvantages

Advantages

• Allows interfacing between devices operating at different voltage levels
• Supports bidirectional communication
• Fast propagation delay ensures quick signal translation
• Low power consumption makes it suitable for battery-powered applications
• Noise immunity provided by Schmitt-trigger inputs

Disadvantages

• Limited number of input/output channels (6 bits)
• Requires additional control signals for direction and latch enable

Working Principles

The CD74HC652EN is a logic level shifter and translator integrated circuit. It enables the translation of digital signals between two different voltage domains, allowing devices operating at different voltage levels to communicate with each other. The device utilizes CMOS technology, providing high-speed operation and low power consumption.

The direction of data flow is controlled by the DIR pin, which determines whether the data is transferred from the A-side to the B-side or vice versa. The OE pin enables or disables the outputs, while the LE pin latches the input data when enabled.

The CD74HC652EN features 3-state outputs, making it suitable for bus-oriented applications where multiple devices share a common data bus. The Schmitt-trigger inputs ensure noise immunity, enhancing the reliability of signal translation.

Detailed Application Field Plans

The CD74HC652EN can be used in various applications that require level shifting and translation between different voltage domains. Some potential application fields include:

1. Microcontroller interfacing with peripherals operating at different voltage levels.
2. Communication interfaces between devices with different logic families (e.g., TTL and CMOS).
3. Bus systems where multiple devices need to share a common data bus.
4. Battery-powered devices requiring low power consumption.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Octal Bus Transceiver with 3-State Outputs
2. CD4050B: Hex Non-Inverting Buffer/Converter
3. TXS0108EPWR: 8-Bit Bidirectional Voltage-Level Translator

These alternative models offer similar functionality to the CD74HC652EN and can be considered as alternatives based on specific requirements and design constraints.

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