SN74LVC244APWR Octal Buffer/Driver Information

Overview

The SN74LVC244APWR is a high-performance octal buffer/driver with 3-state outputs, designed for asynchronous communication between data buses. It operates from 1.65 V to 3.6 V and supports mixed-mode signal operation, making it ideal for applications requiring voltage translation and robust bus interfacing.

Key Features

• Wide Operating Voltage Range: 1.65 V to 3.6 V
• High Input Voltage Tolerance: Accepts voltages up to 5.5 V
• Fast Propagation Delay: Maximum tpd of 5.9 ns at 3.3 V
• Low Ground Bounce and Undershoot: Typical VOLP < 0.8 V and VOHV > 2 V at VCC = 3.3 V, TA = 25°C
• Mixed-Mode Signal Operation: Supports 5-V input/output voltage with 3.3-V VCC
• Ioff Capability: Supports live insertion, partial power-down mode, and back-drive protection
• Down Translation: Translates inputs from a maximum of 5.5 V down to the VCC level
• Ultra Small Logic QFN Package: Available in a 0.5 mm maximum height package
• Latch-Up Performance: Exceeds 250 mA per JESD 17
• ESD Protection: Exceeds JESD 22 – 2000-V Human-Body Model and 1000-V Charged-Device Model

Applications

• Servers
• LED Displays
• Network Switches
• Telecom Infrastructure
• Motor Drivers
• I/O Expanders

Detailed Specifications

Electrical Specifications (at +25°C)

• Supply Voltage (VCC): 1.65 V to 3.6 V
• Input Voltage (VI): Up to 5.5 V
• Output Voltage (VO): 0 V to VCC
• High-Level Output Current (IOH): -12 mA to -24 mA (depending on VCC)
• Low-Level Output Current (IOL): 12 mA to 24 mA (depending on VCC)
• Propagation Delay (tpd): 5.9 ns (typical at 3.3 V)
• Output Enable (OE): Low-level enable

Thermal Information

• Thermal Resistance (RθJA): 50.3 °C/W (TSSOP package)
• Thermal Resistance (RθJC): 22.7 °C/W (TSSOP package)
• Thermal Resistance (RθJB): 28.3 °C/W (TSSOP package)

Package Information

• Package Type: TSSOP (20)
• Body Size: 6.50 mm × 4.40 mm
• Lead Finish: NIPDAU
• Moisture Sensitivity Level (MSL): Level-1-260C-UNLIM
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

Ordering Information

• Model Number: SN74LVC244APWR
• Package Type: TSSOP (20)
• Body Size: 6.50 mm × 4.40 mm
• Status: ACTIVE
• Eco Plan: RoHS & Green
• Lead Finish: NIPDAU
• Moisture Sensitivity Level (MSL): Level-1-260C-UNLIM
• Operating Temperature Range: -40°C to 125°C

Additional Information

• Characterization Test Circuit: Refer to the logic diagram and typical application schematic.
• Evaluation Board: Available for testing and validation.
• Support Resources: TI E2E™ support forums for fast, verified answers and design help.
• Layout Guidelines: Ensure proper handling and installation to prevent ESD damage.