Overview
The SN74LVT16245B, specifically the 74LVT16245BDGGRE4, is a 3.3-V Advanced BiCMOS Technology (ABT) 16-bit bus transceiver produced by Texas Instruments. This device is designed for low-voltage operation and supports mixed-mode signal operation, allowing it to interface with both 3.3-V and 5-V systems. It is part of the Texas Instruments Widebus™ family and is optimized for asynchronous communication between two data buses.
Key Specifications
| Parameter | Min | Max |
|---|---|---|
| VCC Supply Voltage | 2.7 V | 3.6 V |
| VIH High-Level Input Voltage | 2 V | |
| VIL Low-Level Input Voltage | 0.8 V | |
| VI Input Voltage | 5.5 V | |
| IOH High-Level Output Current | -24 mA | -32 mA |
| IOL Low-Level Output Current | 48 mA | 64 mA |
| Δt/Δv Input Transition Rise or Fall Rate | 10 ns/V | |
| Δt/ΔVCC Power-Up Ramp Rate | 200 μs/V | |
| TA Operating Free-Air Temperature | -55°C | 125°C |
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 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 (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101).
Applications
The SN74LVT16245B is suitable for a variety of applications that require asynchronous communication between two data buses. These include:
- Embedded systems requiring low-voltage operation.
- Mixed-voltage systems where both 3.3-V and 5-V logic levels are present.
- High-speed data transmission systems where low output ground bounce is critical.
- Systems requiring hot insertion capability and low power consumption.
Q & A
- What is the operating voltage range of the SN74LVT16245B?
The operating voltage range is from 2.7 V to 3.6 V. - Can the SN74LVT16245B 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 VCC. - What is the typical output ground bounce (VOLP) of the SN74LVT16245B?
The typical VOLP is less than 0.8 V at VCC = 3.3 V and TA = 25°C. - Does the SN74LVT16245B support hot insertion?
Yes, it supports hot insertion with Ioff and power-up 3-state. - What is the latch-up performance of the SN74LVT16245B?
The latch-up performance exceeds 100 mA per JESD 78, Class II. - What kind of ESD protection does the SN74LVT16245B have?
The device has ESD protection exceeding JESD 22 – 2000-V Human-Body Model (A114-A), 200-V Machine Model (A115-A), and 1000-V Charged-Device Model (C101). - What is the operating temperature range of the SN74LVT16245B?
The operating temperature range is from -40°C to 85°C. - How many bits does the SN74LVT16245B transceiver handle?
The device is a 16-bit (dual-octal) bus transceiver. - What is the input transition rise or fall rate for the SN74LVT16245B?
The input transition rise or fall rate is 10 ns/V. - What is the power-up ramp rate for the SN74LVT16245B?
The power-up ramp rate is 200 μs/V.
