SN74ABT623PWE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Level Shifter
• Characteristics: High-speed, Bi-directional, 8-bit shift register
• Package: TSSOP-20
• Essence: Transferring data between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

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
• Maximum Clock Frequency: 80 MHz
• Number of Shift Register Stages: 8

Detailed Pin Configuration

1. GND: Ground
2. SER: Serial Data Input
3. CLK: Clock Input
4. OE: Output Enable
5. A: Parallel Data Input A
6. B: Parallel Data Input B
7. C: Parallel Data Input C
8. D: Parallel Data Input D
9. QH: Serial Data Output
10. QH*: Complementary Serial Data Output
11. SCLR: Shift Register Clear
12. VCC: Power Supply
13. QA: Parallel Data Output A
14. QB: Parallel Data Output B
15. QC: Parallel Data Output C
16. QD: Parallel Data Output D
17. GND: Ground
18. GND: Ground
19. GND: Ground
20. GND: Ground

Functional Features

• Bi-directional data transfer between two voltage domains
• High-speed operation with minimal propagation delay
• Output enable control for tri-state output
• Shift register clear function for resetting the register
• Complementary serial data output for differential signaling

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Bi-directional capability simplifies interfacing between different voltage domains - Tri-state output enables easy bus sharing - Shift register clear function provides reset capability

Disadvantages: - Limited to 8-bit shift register stages - Requires external clock signal for operation

Working Principles

The SN74ABT623PWE4 is a digital logic level shifter that facilitates the transfer of data between two voltage domains. It operates by utilizing an internal shift register, which allows for bi-directional data flow. The input data is shifted through the register based on the clock signal provided. The output data can be enabled or disabled using the output enable control. Additionally, the shift register can be cleared using the shift register clear input.

Detailed Application Field Plans

The SN74ABT623PWE4 is commonly used in various applications where data needs to be transferred between different voltage domains. Some specific application fields include:

1. Communication Systems: Facilitating data transfer between different communication protocols operating at different voltage levels.
2. Microcontroller Interfacing: Enabling communication between microcontrollers operating at different voltage levels.
3. Sensor Networks: Transferring data from sensors with varying voltage requirements to a central processing unit.
4. Industrial Automation: Interfacing between different components of an automated system operating at different voltage levels.

Detailed and Complete Alternative Models

1. SN74ABT623APW: Similar functionality but available in a different package (TSSOP-20).
2. SN74LVC4245APW: Bi-directional octal bus transceiver with similar voltage level shifting capabilities.
3. SN74LVCC3245APW: Octal bus transceiver with tri-state outputs and voltage level shifting capabilities.

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