Overview
The 74HC541D is a high-speed CMOS octal bus buffer integrated circuit produced by Toshiba Semiconductor and Storage. This non-inverting buffer is part of the 74HC series and is fabricated using silicon gate C2MOS technology. It offers high-speed operation similar to equivalent LSTTL (Low-power Schottky Transistor-Transistor Logic) while maintaining the low power dissipation characteristic of CMOS technology. The device features 3-state outputs and is available in a 20-pin SOIC package.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Toshiba Semiconductor and Storage |
| Logic Type | Buffer, Non-Inverting |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | -40°C to 125°C |
| Supply Voltage | 2V to 6V |
| Output Type | 3-State |
| Number of Bits per Element | 8 |
| Propagation Delay Time (typ.) | 10 ns at VCC = 6.0 V |
| Low Power Dissipation | ICC = 4.0 µA (max) at Ta = 25°C |
| Input/Output Current | 7.8mA (High, Low) |
Key Features
- Wide operating temperature range: -40°C to 125°C
- High speed: propagation delay time of 10 ns (typ.) at VCC = 6.0 V
- Low power dissipation: ICC = 4.0 µA (max) at Ta = 25°C
- Balanced propagation delays: tPLH ≈ tPHL
- Wide operating voltage range: VCC(opr) = 2.0 V to 6.0 V
- 3-state outputs with high-impedance state when either G1 or G2 are high
- Protection circuits against static discharge or transient excess voltage
Applications
The 74HC541D is suitable for various digital logic applications requiring high-speed buffering and low power consumption. It is commonly used in:
- Computer systems and peripherals
- Telecommunication equipment
- Industrial control systems
- Automotive electronics
- Consumer electronics requiring high-speed data transfer and buffering
Q & A
- What is the primary function of the 74HC541D?
The 74HC541D is a non-inverting octal bus buffer, designed to buffer digital signals without inverting them.
- What is the operating temperature range of the 74HC541D?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the 74HC541D?
The supply voltage range is 2V to 6V.
- What type of output does the 74HC541D have?
The 74HC541D has 3-state outputs.
- How many bits per element does the 74HC541D support?
The 74HC541D supports 8 bits per element.
- What is the typical propagation delay time of the 74HC541D?
The typical propagation delay time is 10 ns at VCC = 6.0 V.
- Does the 74HC541D have protection against static discharge?
- In what package is the 74HC541D available?
The 74HC541D is available in a 20-pin SOIC package.
- What are the common applications of the 74HC541D?
Common applications include computer systems, telecommunication equipment, industrial control systems, automotive electronics, and consumer electronics.
- How does the 74HC541D achieve low power dissipation?
The 74HC541D achieves low power dissipation through CMOS technology, with a maximum ICC of 4.0 µA at Ta = 25°C.
- What happens to the outputs when either G1 or G2 are high?
When either G1 or G2 are high, the terminal outputs are in the high-impedance state.
