74HC640N,652

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-Speed CMOS, Octal Bus Transceiver with 3-State Outputs
• Package: DIP-20 (Dual In-Line Package with 20 pins)
• Essence: The 74HC640N,652 is an octal bus transceiver designed to facilitate bidirectional level translation between two different voltage domains. It allows seamless communication between devices operating at different logic levels.
• Packaging/Quantity: The 74HC640N,652 is typically available in reels or tubes containing a specific quantity of ICs.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range (VCC): 0V to VCC
• Output Voltage Range (VCC): 0V to VCC
• Input Current (VI = GND or VCC): ±20mA
• Output Current (IO = GND or VCC): ±25mA
• Propagation Delay (tpd): 11ns (typical) at VCC = 4.5V
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The 74HC640N,652 has a total of 20 pins arranged as follows:

+-----+--+-----+ A1 -|1 +--+ 20|- VCC B1 -|2 19|- OE# A2 -|3 18|- B7 B2 -|4 17|- A7 A3 -|5 16|- B6 B3 -|6 15|- A6 A4 -|7 14|- B5 B4 -|8 74HC 13|- A5 GND-|9 640N,652 12|- B5 A0 -|10 11|- OE# +-------------+

Functional Features

• Bidirectional level translation between two voltage domains.
• Eight bidirectional data lines (A1-A8 and B1-B8).
• Output enable control (OE#) for tristate outputs.
• High-speed operation suitable for various applications.
• CMOS technology ensures low power consumption.

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different logic levels. - Provides bidirectional data transfer capability. - Supports high-speed operation. - Low power consumption due to CMOS technology.

Disadvantages: - May require additional external components for specific applications. - Limited to a maximum supply voltage of 6V.

Working Principles

The 74HC640N,652 operates by utilizing a combination of CMOS technology and internal circuitry to facilitate bidirectional level translation. It allows data to be transferred bidirectionally between two voltage domains while maintaining compatibility and integrity.

Detailed Application Field Plans

The 74HC640N,652 finds applications in various fields where bidirectional level translation is required. Some potential application areas include:

1. Microcontroller Interfacing: The IC can be used to interface microcontrollers operating at different logic levels, enabling seamless communication between them.
2. Mixed Voltage Systems: It can be employed in systems where different components operate at distinct voltage levels, ensuring proper data transfer between them.
3. Communication Protocols: The IC can be utilized in communication protocols that involve multiple devices operating at different voltage domains, such as I2C or SPI.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74HC640N,652 include:

1. SN74LVC8T245: Octal Bus Transceiver with 3-State Outputs
2. CD4050B: Hex Non-Inverting Buffer/Converter
3. TXS0108EPWR: 8-Bit Bidirectional Voltage-Level Translator

These alternatives can be considered based on specific requirements and compatibility with the target application.

---

Note: The above content provides a basic structure for an encyclopedia entry on the 74HC640N,652. Additional information and details can be added as per the specific requirements of the encyclopedia.