Overview
The SN74LVC2244ADGVR, produced by Texas Instruments, is an octal buffer and line driver integrated circuit. This device is designed to operate within a wide voltage range of 1.65 V to 3.6 V, making it versatile for various applications. It is organized as two 4-bit line drivers with separate output-enable (OE) inputs, allowing for precise control over data transmission. The SN74LVC2244ADGVR features 3-state outputs, which can be set to a high-impedance state when the OE input is high, and it includes built-in 26-Ω series resistors to minimize output overshoot and undershoot.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VCC) | 1.65 | 3.6 | V |
| Input Voltage (VI) | 0 | 5.5 | V |
| High-Level Input Voltage (VIH) | 0.65 × VCC (1.65 V to 1.95 V) | 2 × VCC (2.7 V to 3.6 V) | V |
| Low-Level Input Voltage (VIL) | 0.35 × VCC (1.65 V to 1.95 V) | 0.8 × VCC (2.7 V to 3.6 V) | V |
| High-Level Output Current (IOH) | -12 | -8 | mA |
| Low-Level Output Current (IOL) | 12 | 8 | mA |
| Propagation Delay Time (tpd) | 5.5 | 12.4 | ns |
| Operating Temperature (TA) | -40 | 125 | °C |
| ESD Protection | 2000 V | HBM |
Key Features
- Operates from 1.65 V to 3.6 V supply voltage range.
- Inputs accept voltages up to 5.5 V.
- Maximum propagation delay time of 5.5 ns at 3.3 V.
- Output ports have equivalent 26-Ω series resistors to reduce overshoot and undershoot.
- Supports mixed-mode signal operation on all ports (5-V input/output voltage with 3.3-V VCC).
- Ioff feature supports live insertion, partial-power-down mode, and back-drive protection.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds 2000-V human-body model (HBM), 200-V machine model (MM), and 1000-V charged-device model (CDM).
Applications
- Wearable health and fitness devices.
- Network switches.
- Servers.
- Tests and measurements equipment.
Q & A
- What is the operating voltage range of the SN74LVC2244ADGVR? The SN74LVC2244ADGVR operates from 1.65 V to 3.6 V.
- What is the maximum input voltage that the SN74LVC2244ADGVR can accept? The device can accept input voltages up to 5.5 V.
- What is the propagation delay time of the SN74LVC2244ADGVR at 3.3 V? The maximum propagation delay time at 3.3 V is 5.5 ns.
- What type of resistors are included in the output ports of the SN74LVC2244ADGVR? The output ports include equivalent 26-Ω series resistors.
- Does the SN74LVC2244ADGVR support mixed-mode signal operation? Yes, it supports mixed-mode signal operation on all ports.
- What is the ESD protection level of the SN74LVC2244ADGVR? The device has ESD protection exceeding 2000-V HBM, 200-V MM, and 1000-V CDM.
- What are some common applications of the SN74LVC2244ADGVR? Common applications include wearable health and fitness devices, network switches, servers, and tests and measurements equipment.
- How does the output-enable (OE) input function on the SN74LVC2244ADGVR? When the OE input is low, the device passes data from the A inputs to the Y outputs. When the OE input is high, the outputs are in the high-impedance state.
- What is the Ioff feature in the SN74LVC2244ADGVR? The Ioff feature supports live insertion, partial-power-down mode, and back-drive protection.
- What is the latch-up performance of the SN74LVC2244ADGVR? The latch-up performance exceeds 250 mA per JESD 17.
