SN74LVTH373PWRE4

Product Overview

• Category: Integrated Circuit
• Use: Latch/Flip-Flop
• Characteristics: Low-Voltage, High-Speed, 3-State Output
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Octal Transparent D-Type Latch with 3-State Outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

The SN74LVTH373PWRE4 is an octal transparent D-type latch with 3-state outputs. It operates at a low voltage and offers high-speed performance. The latch is packaged in a TSSOP package, which provides a compact and space-saving solution for integrated circuits.

The key specifications of the SN74LVTH373PWRE4 are as follows:

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24 mA
• Propagation Delay: 3.8 ns (typical)

Pin Configuration

The SN74LVTH373PWRE4 has a total of 20 pins. The detailed pin configuration is as follows:

1. OE (Output Enable) 1
2. LE (Latch Enable) 1
3. D0 (Data Input) 1
4. D1 (Data Input) 2
5. D2 (Data Input) 3
6. D3 (Data Input) 4
7. D4 (Data Input) 5
8. D5 (Data Input) 6
9. D6 (Data Input) 7
10. D7 (Data Input) 8
11. GND (Ground)
12. Q0 (Latch Output) 1
13. Q1 (Latch Output) 2
14. Q2 (Latch Output) 3
15. Q3 (Latch Output) 4
16. Q4 (Latch Output) 5
17. Q5 (Latch Output) 6
18. Q6 (Latch Output) 7
19. Q7 (Latch Output) 8
20. VCC (Supply Voltage)

Functional Features

The SN74LVTH373PWRE4 is designed to provide transparent latch functionality with 3-state outputs. It allows data to be latched and stored when the latch enable (LE) input is high. The latch output remains in the last state until a new set of data is presented at the inputs.

The output enable (OE) input controls the 3-state outputs. When OE is low, the outputs are active and reflect the current state of the latch. When OE is high, the outputs are in a high-impedance state, allowing other devices to drive the bus lines.

Advantages and Disadvantages

Advantages of the SN74LVTH373PWRE4 include:

• Low-voltage operation allows for compatibility with a wide range of systems.
• High-speed performance enables efficient data processing.
• 3-state outputs provide flexibility in bus sharing applications.
• Compact TSSOP package saves board space.

Disadvantages of the SN74LVTH373PWRE4 include:

• Limited output drive capability may not be suitable for high-current applications.
• Temperature range limited to -40°C to +85°C.

Working Principles

The SN74LVTH373PWRE4 operates based on the principles of transparent latch functionality. When the latch enable (LE) input is high, the data inputs (D0-D7) are latched and stored in the internal flip-flops. The latch output (Q0-Q7) reflects the stored data until a new set of data is presented at the inputs.

The output enable (OE) input controls the 3-state outputs. When OE is low, the outputs are active and reflect the current state of the latch. When OE is high, the outputs are in a high-impedance state, allowing other devices to drive the bus lines without interference.

Detailed Application Field Plans

The SN74LVTH373PWRE4 is commonly used in various digital systems where latching and storing data is required. Some application fields include:

1. Microprocessor Systems: The latch can be used to hold address or control signals during specific operations.
2. Data Storage Systems: It can be utilized for temporary storage of data during read/write operations.
3. Communication Systems: The latch enables buffering and synchronization of data between different components.
4. Industrial Control Systems: It can be employed for signal conditioning and interfacing purposes.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the SN74LVTH373PWRE4. Some