Overview
The SN74LVTH373PW is an octal latch produced by Texas Instruments, designed for low-voltage (3.3-V) VCC operation with the capability to interface with 5-V systems. This device is part of the LVT (Low-Voltage Technology) family and is suitable for mixed-mode signal operation. The SN74LVTH373PW features a buffered output-enable input, allowing the outputs to be placed in either a normal logic state or a high-impedance state, which is beneficial for driving bus lines without the need for additional interface or pullup components.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | V | 2.7 | - | 3.6 |
| Input Voltage Range (VI) | V | -0.5 | - | 7 |
| High-Level Input Voltage (VIH) | V | 2 | - | - |
| Low-Level Input Voltage (VIL) | V | 0.8 | - | - |
| High-Level Output Current (IOH) | mA | -24 | - | -32 |
| Low-Level Output Current (IOL) | mA | 48 | - | 64 |
| Operating Free-Air Temperature (TA) | °C | -40 | - | 85 |
| Storage Temperature Range (Tstg) | °C | -65 | - | 150 |
| Package Thermal Impedance (θJA) | °C/W | - | - | 83 |
Key Features
- Supports mixed-mode signal operation with 5-V input and output voltages and 3.3-V VCC.
- Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C.
- Supports unregulated battery operation down to 2.7 V.
- Ioff and power-up 3-state support for hot insertion.
- Bus hold on data inputs eliminates the need for external pullup/pulldown resistors.
- Latch-up performance exceeds 500 mA per JESD 17.
- ESD protection exceeds JESD 22 - 2000-V Human-Body Model (A114-A) and 200-V Machine Model (A115-A).
Applications
The SN74LVTH373PW is suitable for a variety of applications requiring low-voltage operation and compatibility with both 3.3-V and 5-V systems. These include:
- Embedded systems and microcontrollers.
- Communication and networking equipment.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics requiring low power consumption.
Q & A
- What is the primary function of the SN74LVTH373PW? The SN74LVTH373PW is an octal latch designed for low-voltage operation, allowing it to latch data and provide output based on the latch-enable input.
- What is the operating voltage range for the SN74LVTH373PW? The operating voltage range is from 2.7 V to 3.6 V.
- Can the SN74LVTH373PW operate with 5-V systems? Yes, it supports mixed-mode signal operation with 5-V input and output voltages.
- What is the significance of the bus hold feature? The bus hold feature eliminates the need for external pullup/pulldown resistors on data inputs.
- What kind of ESD protection does the SN74LVTH373PW offer? It offers ESD protection exceeding JESD 22 - 2000-V Human-Body Model (A114-A) and 200-V Machine Model (A115-A).
- What is the maximum operating temperature for the SN74LVTH373PW? The maximum operating temperature is 85°C.
- What package types are available for the SN74LVTH373? Available package types include SOIC (DW), SOP (NS), SSOP (DB), TSSOP (PW), CDIP (J), and LCCC (FK).
- How does the output-enable input function? The output-enable input can place the outputs in either a normal logic state or a high-impedance state.
- What is the typical output ground bounce (VOLP) at VCC = 3.3 V and TA = 25°C? The typical VOLP is less than 0.8 V.
- Is the SN74LVTH373PW suitable for hot insertion? Yes, it supports Ioff and power-up 3-state for hot insertion.
