Overview
The SN74ABT541B, produced by Texas Instruments, is an octal buffer and line driver designed for driving bus lines or buffering memory address registers. This device features a state-of-the-art EPIC-IIB BiCMOS design, which significantly reduces power dissipation. It is characterized for operation over a temperature range of -40°C to 85°C, making it suitable for a variety of applications. The SN74ABT541B has inputs and outputs on opposite sides of the package, facilitating easier printed circuit board layout.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 4.5 to 5.5 | V |
| High-Level Input Voltage | 2 | V |
| Low-Level Input Voltage | 0.8 | V |
| High-Level Output Current | -32 | mA |
| Low-Level Output Current | 64 | mA |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | TSSOP (PW) | |
| Number of Pins | 20 |
Key Features
- State-of-the-Art EPIC-IIB BiCMOS Design: Significantly reduces power dissipation.
- Latch-Up Performance: Exceeds 500 mA per JEDEC Standard JESD-17.
- Typical VOLP (Output Ground Bounce): < 1 V at VCC = 5 V, TA = 25°C.
- High-Impedance State During Power Up and Power Down.
- High-Drive Outputs: -32-mA IOH, 64-mA IOL.
- Multiple Package Options: Includes Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Shrink Small-Outline (PW), and others.
- 3-State Control Gate: Two-input AND gate with active-low inputs.
Applications
The SN74ABT541B is ideal for driving bus lines or buffering memory address registers. Its high-drive outputs and 3-state control make it suitable for use in various digital systems, including data transmission lines, memory interfaces, and other applications requiring reliable signal buffering and driving capabilities.
Q & A
- What is the operating temperature range of the SN74ABT541B?
The operating temperature range is -40°C to 85°C. - What is the supply voltage range for the SN74ABT541B?
The supply voltage range is 4.5 V to 5.5 V. - What are the high-level and low-level output currents of the SN74ABT541B?
The high-level output current is -32 mA, and the low-level output current is 64 mA. - What package types are available for the SN74ABT541B?
The device is available in various packages including TSSOP (PW), SOIC (DW), SSOP (DB), and others. - How does the 3-state control gate work in the SN74ABT541B?
The 3-state control gate is a two-input AND gate with active-low inputs. If either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. - What is the significance of the EPIC-IIB BiCMOS design in the SN74ABT541B?
The EPIC-IIB BiCMOS design significantly reduces power dissipation. - How should unused inputs be handled in the SN74ABT541B?
All unused inputs must be held at VCC or GND to ensure proper device operation. - What is the latch-up performance of the SN74ABT541B?
The latch-up performance exceeds 500 mA per JEDEC Standard JESD-17. - How does the device behave during power up and power down?
The device is in the high-impedance state during power up and power down when VCC is between 0 and 2.1 V. Above 2.1 V, OE should be tied to VCC through a pullup resistor. - What is the typical output ground bounce (VOLP) of the SN74ABT541B?
The typical VOLP is less than 1 V at VCC = 5 V, TA = 25°C.
