Overview
The 74HCT541D is a high-speed CMOS octal non-inverting bus buffer fabricated with silicon gate C2MOS technology, produced by Toshiba Semiconductor and Storage. This device is designed to provide high-speed operation while maintaining low power dissipation, making it suitable for a variety of digital logic applications. It features 3-state outputs and is compatible with TTL, NMOS, and CMOS output voltage levels, allowing for versatile interfacing capabilities.
Key Specifications
| Characteristic | Value | Unit | Conditions |
|---|---|---|---|
| Number of Circuits | 8 | - | - |
| Pins | 20 | - | - |
| Package Type | SOIC20 | - | - |
| Mounting Type | Surface Mount | - | - |
| Operating Temperature Range | -40 to 125 | °C | - |
| Supply Voltage Range | 4.5 to 5.5 | V | - |
| Propagation Delay Time (tpd) | 9 ns (typ.) | ns | VCC = 5.5 V |
| Low-Level Input Voltage (VIL) | 0.8 V (max) | V | - |
| High-Level Input Voltage (VIH) | 2.0 V (min) | V | - |
| Quiescent Supply Current (ICC) | 4.0 µA (max) | µA | Ta = 25 °C |
| Output Drive Capability | ± 6 mA | mA | - |
Key Features
- High-Speed Operation: Achieves high-speed operation similar to equivalent LSTTL while maintaining CMOS low power dissipation, with a propagation delay time of 9 ns (typ.) at VCC = 5.5 V.
- Wide Operating Temperature Range: Operates over a temperature range of -40 to 125 °C.
- Low Power Dissipation: Quiescent supply current of 4.0 µA (max) at Ta = 25 °C.
- Wide Interfacing Ability: Compatible with TTL, NMOS, and CMOS output voltage levels, making it versatile for various digital logic applications.
- 3-State Outputs: Features two output enables (OE1 and OE2), allowing the outputs to assume a high-impedance OFF-state when either OE is high.
- Input Protection: All inputs are equipped with protection circuits against static discharge or transient excess voltage.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Latch-Up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
Applications
The 74HCT541D is suitable for a wide range of digital logic applications, including:
- Level Conversion: Can be used as a level converter for interfacing TTL or NMOS to High Speed CMOS systems.
- Buffering and Line Driving: Ideal for buffering and driving signals in digital circuits, ensuring signal integrity and strength.
- General Digital Logic Circuits: Useful in various digital logic circuits where high-speed, low-power operation is required.
- Embedded Systems and Microcontrollers: Can be integrated into embedded systems and microcontroller-based projects for signal buffering and conditioning.
Q & A
- What is the primary function of the 74HCT541D?
The 74HCT541D is an octal non-inverting bus buffer with 3-state outputs, designed for high-speed operation and low power dissipation.
- What is the operating temperature range of the 74HCT541D?
The device operates over a temperature range of -40 to 125 °C.
- What is the supply voltage range for the 74HCT541D?
The supply voltage range is from 4.5 to 5.5 V.
- What is the propagation delay time of the 74HCT541D?
The propagation delay time is 9 ns (typ.) at VCC = 5.5 V.
- Is the 74HCT541D compatible with TTL inputs?
Yes, the device is compatible with TTL, NMOS, and CMOS output voltage levels.
- What is the output drive capability of the 74HCT541D?
The output drive capability is ± 6 mA.
- Does the 74HCT541D have input protection?
Yes, all inputs are equipped with protection circuits against static discharge or transient excess voltage.
- How many output enables does the 74HCT541D have?
The device features two output enables (OE1 and OE2).
- What is the package type of the 74HCT541D?
The package type is SOIC20.
- Is the 74HCT541D RoHS compliant?
Yes, the 74HCT541D is RoHS compliant.
