Overview
The SN74ABT240APWR is an 8-channel buffer/inverter integrated circuit produced by Texas Instruments. This device is designed to operate within the voltage range of 4.5 V to 5.5 V and features TTL-compatible CMOS inputs along with 3-state outputs. It is particularly useful in applications requiring high-drive outputs and extended temperature performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | –0.5 | 7 | V | |
| Input Voltage Range (VI) | –0.5 | 7 | V | |
| Output Voltage Range (VO) in High or Power-Off State | –0.5 | 5.5 | V | |
| Output Current in Low State (IOL) | 48 | mA | ||
| Output Current in High State (IOH) | –24 | mA | ||
| Storage Temperature Range (Tstg) | –65 | 150 | °C | |
| Operating Temperature Range (TA) | –55 | 125 | °C | |
| Package Thermal Impedance (θJA) | 115 | °C/W |
Key Features
- TTL-compatible CMOS inputs and 3-state outputs.
- High-drive outputs: –24-mA IOH, 48-mA IOL.
- Extended temperature performance: –55°C to 125°C.
- Controlled Baseline: One Assembly/Test Site, One Fabrication Site.
- Packaged in TSSOP (PW) with 20 pins.
- Symmetrical active-low output-enable (OE) inputs.
- Low output ground bounce: Typical VOLP < 1 V at VCC = 5 V, TA = 25°C.
Applications
The SN74ABT240APWR is suitable for various applications including:
- Memory address drivers.
- Clock drivers.
- Bus drivers.
- General-purpose buffering and inverting in digital circuits.
Q & A
- What is the voltage range for the SN74ABT240APWR?
The device operates within a voltage range of 4.5 V to 5.5 V. - What type of inputs and outputs does the SN74ABT240APWR have?
The device features TTL-compatible CMOS inputs and 3-state outputs. - What is the maximum output current in the low state?
The maximum output current in the low state (IOL) is 48 mA. - What is the operating temperature range for the SN74ABT240APWR?
The device operates over a temperature range of –55°C to 125°C. - What is the package type for the SN74ABT240APWR?
The device is packaged in a TSSOP (PW) package with 20 pins. - How should the output-enable (OE) input be managed during power-up or power-down?
The OE input should be tied to VCC through a pull-up resistor to ensure the high-impedance state during power-up or power-down. - What are some typical applications for the SN74ABT240APWR?
Typical applications include memory address drivers, clock drivers, bus drivers, and general-purpose buffering and inverting in digital circuits. - What is the significance of the controlled baseline in the SN74ABT240APWR?
The controlled baseline ensures that the device is manufactured at one assembly/test site and one fabrication site, enhancing reliability and consistency. - How does the SN74ABT240APWR handle output ground bounce?
The device has a low output ground bounce, with a typical VOLP < 1 V at VCC = 5 V, TA = 25°C. - What is the storage temperature range for the SN74ABT240APWR?
The storage temperature range is –65°C to 150°C.
