Overview
The SN74ALVCH16373DGGR is a 16-bit transparent D-type latch with 3-state outputs, produced by Texas Instruments. This device is part of the Texas Instruments Widebus™ family and is designed to operate over a wide voltage range from 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 device can be used as two 8-bit latches or one 16-bit latch, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | 1.65 | - | 3.6 | V |
| Input Voltage Range | -0.5 | - | VCC + 0.5 | V |
| Output Voltage Range | -0.5 | - | VCC + 0.5 | V |
| High-Level Input Voltage (VCC = 1.65 V to 1.95 V) | 0.65 × VCC | - | - | V |
| High-Level Input Voltage (VCC = 2.3 V to 2.7 V) | 1.7 | - | - | V |
| High-Level Input Voltage (VCC = 2.7 V to 3.6 V) | 2 | - | - | V |
| Low-Level Input Voltage (VCC = 1.65 V to 1.95 V) | 0.35 × VCC | - | - | V |
| Low-Level Input Voltage (VCC = 2.3 V to 2.7 V) | 0.7 | - | - | V |
| Low-Level Input Voltage (VCC = 2.7 V to 3.6 V) | 0.8 | - | - | V |
| Propagation Delay Time (tpd) at 3.3 V | - | 3.6 | - | ns |
| Output Drive at 3.3 V | - | ±24 | - | mA |
| Operating Free-Air Temperature Range | -40 | - | 85 | °C |
Key Features
- Operates from 1.65 V to 3.6 V, making it suitable for a wide range of voltage applications.
- Maximum propagation delay time (tpd) of 3.6 ns at 3.3 V.
- ±24-mA output drive at 3.3 V, ensuring strong output signals.
- Bus hold on data inputs eliminates the need for external pullup/pulldown resistors.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22 – 2000-V human-body model (A114-A) and 200-V machine model (A115-A).
- Available in various packages including TSSOP (DGG), SSOP (DL), and VFBGA (GQL/ZQL), offering flexibility in design.
Applications
- Implementing buffer registers and working registers.
- Building I/O ports and bidirectional bus drivers.
- Used in high-speed data transmission and storage systems.
- Suitable for applications requiring low power consumption and high performance.
- Can be used in embedded systems, microcontrollers, and other digital logic circuits.
Q & A
- What is the voltage range for the SN74ALVCH16373DGGR?
The SN74ALVCH16373DGGR operates from 1.65 V to 3.6 V.
- What is the maximum propagation delay time (tpd) at 3.3 V?
The maximum propagation delay time (tpd) at 3.3 V is 3.6 ns.
- What is the output drive capability at 3.3 V?
The output drive capability at 3.3 V is ±24 mA.
- Does the SN74ALVCH16373DGGR require external pullup/pulldown resistors?
No, the bus hold on data inputs eliminates the need for external pullup/pulldown resistors.
- What is the latch-up performance of the SN74ALVCH16373DGGR?
The latch-up performance exceeds 250 mA per JESD 17.
- What kind of ESD protection does the SN74ALVCH16373DGGR offer?
The device offers ESD protection exceeding JESD 22 – 2000-V human-body model (A114-A) and 200-V machine model (A115-A).
- In what packages is the SN74ALVCH16373DGGR available?
The device is available in TSSOP (DGG), SSOP (DL), and VFBGA (GQL/ZQL) packages.
- What are some common applications of the SN74ALVCH16373DGGR?
Common applications include implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
- What is the operating free-air temperature range for the SN74ALVCH16373DGGR?
The operating free-air temperature range is from -40°C to 85°C.
- How many bits does the SN74ALVCH16373DGGR latch support?
The device supports 16 bits and can be used as two 8-bit latches or one 16-bit latch.
