CD74AC623M96G4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, octal bus transceiver with 3-state outputs
• Package: 96-ball MicroStar Junior™ BGA package
• Essence: Transfers data between two bidirectional buses
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: AC
• Number of Bits: 8
• Supply Voltage Range: 2V to 6V
• Input/Output Compatibility: TTL, CMOS
• Propagation Delay: 5.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74AC623M96G4 has a total of 96 pins. The pin configuration is as follows:

1. OE (Output Enable) A
2. I/O0 (Bidirectional Data Bus) A
3. I/O1 (Bidirectional Data Bus) A
4. I/O2 (Bidirectional Data Bus) A
5. I/O3 (Bidirectional Data Bus) A
6. I/O4 (Bidirectional Data Bus) A
7. I/O5 (Bidirectional Data Bus) A
8. I/O6 (Bidirectional Data Bus) A
9. GND (Ground)
10. VCC (Power Supply)
11. I/O7 (Bidirectional Data Bus) A
12. DIR (Direction Control) A
13. CLK (Clock Input) A
14. LE (Latch Enable) A
15. OE (Output Enable) B
16. I/O0 (Bidirectional Data Bus) B
17. I/O1 (Bidirectional Data Bus) B
18. I/O2 (Bidirectional Data Bus) B
19. I/O3 (Bidirectional Data Bus) B
20. I/O4 (Bidirectional Data Bus) B
21. I/O5 (Bidirectional Data Bus) B
22. I/O6 (Bidirectional Data Bus) B
23. GND (Ground)
24. VCC (Power Supply)
25. I/O7 (Bidirectional Data Bus) B
26. DIR (Direction Control) B
27. CLK (Clock Input) B
28. LE (Latch Enable) B 29-96. Reserved

Functional Features

• Bidirectional data transfer between two buses
• 3-state outputs for bus isolation
• Separate output enable controls for each bus
• Latch enable control for transparent latch operation
• Direction control for selecting data flow direction
• High-speed operation suitable for various digital applications

Advantages and Disadvantages

Advantages

• High-speed data transfer capability
• Versatile compatibility with TTL and CMOS logic levels
• 3-state outputs allow for bus isolation
• Transparent latch operation for easy data flow control

Disadvantages

• Limited number of bits (8) in the transceiver
• Requires external clock signal for proper operation
• Not suitable for low-voltage applications (<2V)

Working Principles

The CD74AC623M96G4 is an octal bus transceiver that facilitates bidirectional data transfer between two buses. It operates based on the input signals provided to the direction control (DIR) pin, which determines the data flow direction. The latch enable (LE) pin enables transparent latch operation, allowing data to be transferred from one bus to another.

The device features separate output enable (OE) controls for each bus, enabling individual bus isolation when necessary. The 3-state outputs ensure that the transceiver does not interfere with the buses when it is not actively transferring data.

Detailed Application Field Plans

The CD74AC623M96G4 can be used in various digital applications that require bidirectional data transfer between two buses. Some potential application fields include:

1. Microprocessor systems
2. Data communication systems
3. Industrial automation
4. Test and measurement equipment
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. SN74ACT623: Similar octal bus transceiver from Texas Instruments
2. MC74AC623: Octal bus transceiver from ON Semiconductor
3. 74HC623: Octal bus transceiver from NXP Semiconductors
4. CD54AC623: Octal bus transceiver from Texas Instruments (obsolete)

These alternative models offer similar functionality and can be considered as alternatives to the CD74AC623M96G4.

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