Overview
The SN74LVT16244BDLR is a 16-bit buffer and line driver produced by Texas Instruments. This device is part of the 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 can be configured as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer, making it versatile for various applications. It features true outputs and symmetrical active-low output-enable (OE) inputs, and it supports unregulated battery operation down to 2.7 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage Range) | 2.7 | - | 3.6 | V |
| VI (Input Voltage Range) | -0.5 | - | 7 | V |
| VO (Output Voltage Range in High State) | -0.5 | - | VCC + 0.5 | V |
| IOH (High-Level Output Current) | -24 | - | -32 | mA |
| IOL (Low-Level Output Current) | 48 | - | 64 | mA |
| TA (Operating Free-Air Temperature Range) | -40 | - | 85 | °C |
| tPLH (Propagation Delay Time, A to Y) | 1.1 | 2.3 | 3.7 | ns |
| tPHL (Propagation Delay Time, A to Y) | 1.1 | 2 | 3.7 | ns |
| θJA (Package Thermal Impedance, DL Package) | - | - | 63 | °C/W |
Key Features
- State-of-the-art Advanced BiCMOS Technology (ABT) design 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.
- 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), and 1000-V Charged-Device Model (C101).
- True outputs and symmetrical active-low output-enable (OE) inputs.
Applications
- Buffering and driving signals in low-voltage systems.
- Interface between 3.3-V and 5-V systems.
- Unregulated battery-powered systems.
- Hot-swappable applications due to Ioff and power-up 3-state support.
- High-reliability applications requiring robust ESD protection.
Q & A
- What is the operating voltage range of the SN74LVT16244BDLR?
The operating voltage range is from 2.7 V to 3.6 V.
- What is the maximum output current in the high state?
The maximum output current in the high state is -32 mA.
- What is the maximum output current in the low state?
The maximum output current in the low state is 64 mA.
- What is the operating temperature range of the device?
The operating temperature range is from -40°C to 85°C.
- Does the device support hot insertion?
Yes, it supports hot insertion due to Ioff and power-up 3-state functionality.
- What is the typical output ground bounce (VOLP) at VCC = 3.3 V and TA = 25°C?
The typical output ground bounce (VOLP) is less than 0.8 V.
- What kind of ESD protection does the device offer?
The device offers 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).
- Can the device be used in mixed-mode signal operations?
Yes, it supports mixed-mode signal operation with 5-V input and output voltages while operating at 3.3 V.
- What is the package type and pin count of the SN74LVT16244BDLR?
The device is available in SSOP (DL) package with 48 pins.
- Is the device suitable for unregulated battery operation?
Yes, it supports unregulated battery operation down to 2.7 V.
