Overview
The SN74LV244APWT is an octal buffer and line driver produced by Texas Instruments. This device is designed to operate within a voltage range of 2 V to 5.5 V, making it versatile for various applications. It is organized as two 4-bit line drivers, each with its own output-enable (OE) input, allowing for precise control over data transmission. The SN74LV244APWT is particularly useful for improving the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| VCC Supply Voltage | -0.5 | 7 | V | |
| Input Voltage (VI) | -0.5 | 7 | V | |
| Output Voltage (VO) | -0.5 | VCC + 0.5 | V | |
| Operating Temperature (TA) | -40 | 125 | °C | |
| Propagation Delay Time (tpd) at VCC = 5 V | 3.9 | 5.5 | 6.5 | ns |
| Output Current (IO) Continuous | ±35 | mA | ||
| Junction Temperature (Tj) | -65 | 150 | °C |
Key Features
- VCC Operation Range: 2 V to 5.5 V, making it suitable for a wide range of applications.
- 3-State Outputs: The device features balanced CMOS 3-state outputs, capable of driving high, driving low, and high impedance states.
- Mixed-Mode Voltage Operation: Supports mixed-mode voltage operation on all ports.
- Partial Power-Down Mode: Ioff supports partial-power-down mode operation, where outputs are disabled when the supply pin is held at 0 V.
- High Current Drive: Capable of high current drive of about 16 mA, suitable for driving digital signals over longer board lengths.
- ESD Protection: Exceeds JESD 22 standards for ESD protection.
- Latch-Up Performance: Latch-up performance exceeds 250 mA per JESD 17.
Applications
- Servers and Network Switches: Used in high-performance server and network switch applications.
- LED Displays: Suitable for driving LEDs up to 16 mA.
- Telecom Infrastructure: Used in telecom infrastructure for reliable signal transmission.
- Motor-Drive Control Boards: Applied in motor-drive control boards for precise signal control.
- Buffering and Delay Creation: Used to buffer signals and create delays between clock or data signals.
Q & A
- What is the operating voltage range of the SN74LV244APWT?
The SN74LV244APWT operates within a voltage range of 2 V to 5.5 V.
- What is the maximum propagation delay time at VCC = 5 V?
The maximum propagation delay time at VCC = 5 V is 6.5 ns.
- What is the continuous output current capability of the device?
The device can handle a continuous output current of ±35 mA.
- Does the SN74LV244APWT support partial power-down mode?
Yes, the device supports partial power-down mode operation through the Ioff feature.
- What are the typical applications of the SN74LV244APWT?
Typical applications include servers, network switches, LED displays, telecom infrastructure, and motor-drive control boards.
- How does the device handle high-impedance states?
The device features 3-state outputs that can be in high-impedance states when the OE input is high.
- What is the ESD protection level of the SN74LV244APWT?
The device exceeds JESD 22 standards for ESD protection.
- Can the SN74LV244APWT drive LEDs?
Yes, the device can drive LEDs up to 16 mA.
- What is the junction temperature range of the device?
The junction temperature range is -65°C to 150°C.
- How many bits does the SN74LV244APWT organize as line drivers?
The device is organized as two 4-bit line drivers.
