Overview
The 74HC151D is a high-speed CMOS 8-channel multiplexer produced by Toshiba Semiconductor and Storage. Fabricated with silicon gate C2MOS technology, this device offers high-speed operation similar to equivalent LSTTL while maintaining the low power dissipation characteristic of CMOS technology. The multiplexer selects one of eight data input signals (D0-D7) based on the decoding of three binary control inputs (A, B, C) and provides the selected data on two outputs: a non-inverting output (Y) and an inverting output (W). The device also includes a strobe input that controls the output conditions, making it versatile for various digital signal routing applications.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Propagation Delay Time (tpd) | 15 ns (typ.) | ns | VCC = 5 V, CL = 50 pF, Ta = 25°C |
| Low Power Dissipation (ICC) | 4.0 µA (max) | µA | Ta = 25°C |
| Operating Voltage Range (VCC) | 2.0 to 6.0 V | V | |
| Output Current (IOUT) | ±25 mA | mA | |
| Input Voltage Range (VIN) | -0.5 to VCC + 0.5 V | V | |
| Operating Temperature Range | -40 to 125 °C | °C | |
| Package Type | 16-SOIC |
Key Features
- High-Speed Operation: Achieves propagation delay times of 15 ns (typ.) at VCC = 5 V.
- Low Power Dissipation: Maximum quiescent supply current of 4.0 µA at Ta = 25°C.
- Wide Operating Voltage Range: Operates from 2.0 to 6.0 V.
- Balanced Propagation Delays: tPLH ≈ tPHL, ensuring consistent signal timing.
- High Noise Immunity: Enhanced reliability in noisy environments.
- Non-Inverting Output: Provides both non-inverting (Y) and inverting (W) outputs.
- Strobe Input Control: Allows for two output conditions based on the strobe input level.
- Static Discharge Protection: All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Applications
- Digital Signal Routing: Ideal for complex signal routing requirements in various digital systems.
- Communication Systems: Used for data selection and multiplexing in communication systems.
- Industrial Control Systems: Suitable for industrial control applications due to its robust operating temperature range.
- Consumer Electronics: Used in consumer electronics for efficient and reliable data multiplexing.
Q & A
- What is the 74HC151D?
The 74HC151D is a high-speed CMOS 8-channel multiplexer produced by Toshiba Semiconductor and Storage.
- What is the propagation delay time of the 74HC151D?
The propagation delay time (tpd) is 15 ns (typ.) at VCC = 5 V.
- What is the operating voltage range of the 74HC151D?
The device operates from 2.0 to 6.0 V.
- What type of package does the 74HC151D come in?
The 74HC151D comes in a 16-SOIC package.
- What are the key features of the 74HC151D?
Key features include high-speed operation, low power dissipation, wide operating voltage range, balanced propagation delays, high noise immunity, and static discharge protection.
- What are the typical applications of the 74HC151D?
Typical applications include digital signal routing, communication systems, industrial control systems, and consumer electronics.
- How does the strobe input control the outputs of the 74HC151D?
A low level on the strobe input transfers the selected data to the outputs, while a high level sets the Y output low and the W output high regardless of the data or select input conditions.
- What is the maximum output current of the 74HC151D?
The maximum output current is ±25 mA.
- Is the 74HC151D compatible with other logic families?
Yes, it is compatible with a wide range of logic families due to its wide operating voltage range.
- What is the operating temperature range of the 74HC151D?
The operating temperature range is -40 to 125 °C.
