Overview
The SN74LVC244APWR is an octal buffer or driver with 3-state outputs, designed by Texas Instruments. This component operates within a voltage range of 1.65 V to 3.6 V, making it versatile for various applications. It is specifically engineered for asynchronous communication between data buses and supports mixed-mode signal operation, allowing it to handle 5-V input or output voltages with a 3.3-V VCC. The device is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs, enabling data to be passed from the A inputs to the Y outputs when OE is low, and placing the outputs in a high-impedance state when OE is high.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | SN74LVC244APWR |
| Package Type | TSSOP-20 |
| Operating Voltage Range | 1.65 V to 3.6 V |
| Input Voltage Range | Up to 5.5 V |
| Operating Temperature Range | –40°C to +125°C |
| Propagation Delay Time | Maximum 5.9 ns at 3.3 V |
| Output Ground Bounce | Typical < 0.8 V at VCC = 3.3 V, TA = 25°C |
| Output Undershoot | Typical > 2 V at VCC = 3.3 V, TA = 25°C |
| ESD Protection | 2000-V Human-Body Model, 1000-V Charged-Device Model |
Key Features
- Operates from 1.65 V to 3.6 V and accepts input voltages up to 5.5 V.
- Specified from –40°C to +85°C and –40°C to +125°C.
- Maximum propagation delay time of 5.9 ns at 3.3 V.
- Typical output ground bounce < 0.8 V and output undershoot > 2 V at VCC = 3.3 V, TA = 25°C.
- Supports mixed-mode signal operation on all ports and can be used as a down translator.
- Live insertion, partial-power-down mode, and back-drive protection supported.
- Available in ultra-small logic QFN package (0.5 mm maximum height).
- Latch-up performance exceeds 250 mA per JESD 17 and ESD protection exceeds JESD 22.
Applications
- Servers
- LED Displays
- Network Switches
- Telecom Infrastructure
- Motor Drivers
- I/O Expanders
The SN74LVC244APWR is suitable for a wide range of applications requiring reliable and efficient data buffering and driving capabilities.
Q & A
- What is the operating voltage range of the SN74LVC244APWR?
The SN74LVC244APWR operates from 1.65 V to 3.6 V. - What is the maximum input voltage the SN74LVC244APWR can handle?
The SN74LVC244APWR can handle input voltages up to 5.5 V. - What is the propagation delay time of the SN74LVC244APWR at 3.3 V?
The maximum propagation delay time is 5.9 ns at 3.3 V. - Does the SN74LVC244APWR support mixed-mode signal operation?
Yes, it supports mixed-mode signal operation on all ports. - What are the ESD protection specifications of the SN74LVC244APWR?
The SN74LVC244APWR has ESD protection exceeding 2000-V Human-Body Model and 1000-V Charged-Device Model. - In what package types is the SN74LVC244APWR available?
The SN74LVC244APWR is available in TSSOP-20 and other package types such as PDIP, SO, SSOP, TVSOP, SOIC, VQFN, and BGA. - What are the typical output ground bounce and undershoot values at 3.3 V and 25°C?
The typical output ground bounce is < 0.8 V and the typical output undershoot is > 2 V at VCC = 3.3 V, TA = 25°C. - Does the SN74LVC244APWR support live insertion and partial-power-down mode?
Yes, it supports live insertion, partial-power-down mode, and back-drive protection. - What are some common applications of the SN74LVC244APWR?
Common applications include servers, LED displays, network switches, telecom infrastructure, motor drivers, and I/O expanders. - What is the operating temperature range of the SN74LVC244APWR?
The operating temperature range is from –40°C to +125°C.
