Overview
The SN74LVT16245BDLR is a 16-bit (dual-octal) noninverting 3-state bus transceiver produced by Texas Instruments. This device is part of the Texas Instruments Widebus™ Family and is designed using Advanced BiCMOS Technology (ABT) for 3.3-V operation. It supports mixed-mode signal operation, allowing it to interface with 5-V systems while operating at 3.3 V. The device is optimized for low static-power dissipation and supports unregulated battery operation down to 2.7 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2.7 | - | 3.6 | V |
| VIH High-Level Input Voltage | 2 | - | - | V |
| VIL Low-Level Input Voltage | 0.8 | - | - | V |
| IOH High-Level Output Current | -24 | - | -32 | mA |
| IOL Low-Level Output Current | 48 | - | 64 | mA |
| TA Operating Free-Air Temperature | -40 | - | 85 | °C |
| tPLH Propagation Delay Time | 0.5 | - | 4.5 | ns |
Key Features
- State-of-the-Art Advanced BiCMOS Technology (ABT) for 3.3-V operation and low static-power dissipation.
- Supports mixed-mode signal operation (5-V input and output voltages with 3.3-V VCC).
- Supports unregulated battery operation down to 2.7 V.
- Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C.
- Ioff and power-up 3-state support for hot insertion.
- Distributed VCC and GND pins minimize high-speed switching noise.
- Flow-through architecture optimizes PCB layout.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 – 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
Applications
The SN74LVT16245BDLR is suitable for various applications requiring asynchronous communication between two data buses. It is particularly useful in systems that need to interface between 3.3-V and 5-V logic levels. Common applications include:
- Embedded systems and microcontrollers.
- Communication interfaces (e.g., UART, SPI, I2C).
- Data acquisition and processing systems.
- Industrial control systems.
- Automotive electronics.
Q & A
- What is the operating voltage range of the SN74LVT16245BDLR?
The operating voltage range is from 2.7 V to 3.6 V.
- Can the SN74LVT16245BDLR operate with 5-V logic levels?
Yes, it supports mixed-mode signal operation with 5-V input and output voltages while operating at 3.3 V.
- What is the maximum propagation delay time for the SN74LVT16245BDLR?
The maximum propagation delay time is 4.5 ns.
- Does the SN74LVT16245BDLR support hot insertion?
Yes, it supports hot insertion with Ioff and power-up 3-state circuitry.
- What is the typical output ground bounce (VOLP) for the SN74LVT16245BDLR?
The typical output ground bounce is less than 0.8 V at VCC = 3.3 V and TA = 25°C.
- What are the ESD protection levels for the SN74LVT16245BDLR?
The device exceeds JESD 22 – 2000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- What are the package options available for the SN74LVT16245BDLR?
The device is available in SSOP (DL), TSSOP (DGG), TVSOP (DGV), and VFBGA (GQL/ZQL) packages.
- What is the operating temperature range for the SN74LVT16245BDLR?
The operating temperature range is from -40°C to 85°C.
- How does the SN74LVT16245BDLR minimize high-speed switching noise?
The device minimizes high-speed switching noise through distributed VCC and GND pins.
- What is the latch-up performance of the SN74LVT16245BDLR?
The latch-up performance exceeds 100 mA per JESD 78, Class II.
