N74F657D,623

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, 8-bit bus transceiver with parity generator/checker
• Package: Dual In-Line Package (DIP)
• Essence: Transceiver with parity functionality
• Packaging/Quantity: Typically sold in reels of 2500 units

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
• Propagation Delay Time: 6 ns (max)
• Output Current: ±24 mA
• Parity Error Detection: Even/Odd

Detailed Pin Configuration

1. A0 - Data Bus A Input/Output
2. A1 - Data Bus A Input/Output
3. A2 - Data Bus A Input/Output
4. A3 - Data Bus A Input/Output
5. A4 - Data Bus A Input/Output
6. A5 - Data Bus A Input/Output
7. A6 - Data Bus A Input/Output
8. A7 - Data Bus A Input/Output
9. GND - Ground
10. B7 - Data Bus B Input/Output
11. B6 - Data Bus B Input/Output
12. B5 - Data Bus B Input/Output
13. B4 - Data Bus B Input/Output
14. B3 - Data Bus B Input/Output
15. B2 - Data Bus B Input/Output
16. B1 - Data Bus B Input/Output
17. B0 - Data Bus B Input/Output
18. OE - Output Enable
19. P - Parity Output
20. VCC - Supply Voltage

Functional Features

• Bidirectional data transfer between two 8-bit buses (A and B)
• Parity generation and checking for error detection
• Output enable control for tristate operation
• High-speed operation suitable for time-critical applications
• Wide operating voltage range for compatibility with various systems

Advantages

• Efficient data transfer between two buses with parity functionality
• Error detection capability through parity checking
• Tristate output enables flexible bus sharing
• High-speed operation ensures quick data transmission
• Wide operating voltage range allows compatibility with different systems

Disadvantages

• Limited to 8-bit bus width, may not be suitable for larger data transfers
• Requires additional circuitry for parity error handling
• Not suitable for low-power or battery-operated devices due to higher power consumption

Working Principles

The N74F657D,623 is a bidirectional bus transceiver with parity generation/checking functionality. It allows data transfer between two 8-bit buses (A and B) while also providing parity error detection. The transceiver operates by enabling the appropriate direction of data flow based on the control signals. The parity generator generates even or odd parity based on the input data, which can be checked at the receiving end for error detection.

Detailed Application Field Plans

• Data communication systems requiring reliable data transfer with error detection
• Microprocessor-based systems with multiple buses that need to exchange data
• Industrial automation systems where data integrity is crucial
• Networking equipment for efficient data transmission and error detection

Detailed and Complete Alternative Models

1. SN74F657D - Similar functionality and specifications, offered by Texas Instruments
2. MC74F657D - Equivalent device from Motorola
3. CD74F657D - Comparable IC provided by National Semiconductor

Note: The above alternative models are suggested based on similar functionality and specifications. It is recommended to refer to the respective datasheets for detailed information.

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