Overview
The SN74LVCH16373ADGGR is a 16-bit transparent D-type latch with 3-state outputs, manufactured by Texas Instruments. This device is part of the Texas Instruments Widebus™ family and is designed for operation over a wide voltage range of 1.65 V to 3.6 V. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The latch can be used as two 8-bit latches or one 16-bit latch, and it features a buffered output-enable (OE) input to control the output states.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | 1.65 | 3.6 | V | |
| Input Voltage Range | -0.5 | 6.5 | V | |
| Output Voltage Range (High or Low State) | -0.5 | VCC + 0.5 | V | |
| Continuous Output Current | ±50 | mA | ||
| Continuous Current through Each VCC or GND | ±100 | mA | ||
| Operating Free-Air Temperature Range | -40 | 125 | °C | |
| High-Level Output Current (VCC = 3 V, IOH = -24 mA) | 2.2 | V | ||
| Low-Level Output Current (VCC = 3 V, IOL = 24 mA) | 0.55 | 0.65 | V |
Key Features
- Operates from 1.65 V to 3.6 V, allowing for down-voltage translation.
- Inputs accept voltages up to 5.5 V, enabling translation down to VCC.
- Ioff feature supports live insertion, partial-power-down mode, and back-drive protection.
- Bus hold on data inputs eliminates the need for external pull-up or pull-down resistors.
- ESD protection exceeds JESD 22 standards (2000-V Human-Body Model, 200-V Machine Model).
- Latch-up performance exceeds 250 mA per JESD 17.
- High-drive capability, producing up to 24 mA of drive current at 3.3 V.
- Suitable for high-speed applications up to 100 MHz.
Applications
The SN74LVCH16373ADGGR is versatile and can be used in various applications, including:
- Buffer registers and working registers.
- I/O ports and bidirectional bus drivers.
- Wearable health and fitness devices.
- Toys and consumer electronics.
- Power infrastructures and servers.
Q & A
- What is the operating voltage range of the SN74LVCH16373ADGGR?
The operating voltage range is from 1.65 V to 3.6 V.
- What is the maximum continuous output current per pin?
The maximum continuous output current per pin is ±50 mA.
- What is the maximum total continuous current through each VCC or GND pin?
The maximum total continuous current through each VCC or GND pin is ±100 mA.
- What is the input voltage tolerance of the SN74LVCH16373ADGGR?
The inputs are 5.5-V tolerant, allowing translation down to VCC.
- What is the purpose of the OE (output-enable) input?
The OE input can place the outputs in either a normal logic state (high or low) or the high-impedance state.
- What are the thermal resistance characteristics of the SN74LVCH16373ADGGR?
The junction-to-ambient thermal resistance (RθJA) is approximately 64.3 to 78.4 °C/W, depending on the package type.
- What are the ESD protection capabilities of the SN74LVCH16373ADGGR?
The device exceeds JESD 22 standards with 2000-V Human-Body Model and 200-V Machine Model ESD protection.
- Can the SN74LVCH16373ADGGR be used in high-speed applications?
Yes, it is suitable for high-speed applications up to 100 MHz.
- What are the package options available for the SN74LVCH16373ADGGR?
The device is available in TSSOP, TVSOP, and SSOP packages.
- What is the significance of the Ioff feature in the SN74LVCH16373ADGGR?
The Ioff feature supports live insertion, partial-power-down mode, and back-drive protection.
