Overview
The 74HCT154D,653 is a 4-to-16 line decoder/demultiplexer produced by NXP Semiconductors. This device is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. It decodes four binary weighted address inputs (A0 to A3) into sixteen mutually exclusive outputs (Y0 to Y15), making it highly versatile for various digital logic applications.
The device features two input enable (E0 and E1) inputs, where a HIGH on either of the input enables forces the outputs HIGH. This functionality allows the device to be used as a 1-to-16 demultiplexer by utilizing one of the enable inputs as the multiplexed data input.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| VCC | 4.5 - 5.5 V | Supply voltage range |
| Logic Switching Levels | TTL | Input logic levels compatible with TTL |
| Output Drive Capability | ± 4 mA | Maximum current that can be driven by the outputs |
| tpd | 13 ns | Propagation delay time |
| Tamb | -40°C to +125°C | Operating temperature range |
| Package | SO24 (SOT137-1) | Package type and pin count |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | Electrostatic discharge protection levels |
Key Features
- Wide Supply Voltage Range: Operates from 4.5 V to 5.5 V, making it compatible with a variety of power supply systems.
- CMOS Low Power Dissipation: Low power consumption, which is beneficial for power-sensitive applications.
- High Noise Immunity: Robust against noise, ensuring reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B, providing high reliability against latch-up conditions.
- 16-Line Demultiplexing Capability: Decodes four binary-coded inputs into sixteen mutually-exclusive outputs.
- Input Levels: Compatible with TTL input levels, making it versatile for use in TTL-based systems.
- Multiple Package Options: Available in various packages such as SO24, TSSOP24, and DHVQFN24, offering flexibility in design.
- Compliance with JEDEC Standards: Complies with JESD8C and JESD7A standards, ensuring compatibility and reliability.
Applications
- Digital Logic Circuits: Ideal for decoding and demultiplexing in digital logic circuits, such as in microprocessor and microcontroller systems.
- Communication Systems: Used in communication systems where data needs to be routed to multiple destinations based on address inputs.
- Automotive Electronics: Suitable for automotive applications due to its wide operating temperature range and robust ESD protection.
- Industrial Control Systems: Employed in industrial control systems for decoding and routing signals to various outputs.
Q & A
- What is the primary function of the 74HCT154D,653?
The primary function is to decode four binary weighted address inputs into sixteen mutually exclusive outputs, and it can also be used as a 1-to-16 demultiplexer.
- What is the supply voltage range for the 74HCT154D,653?
The supply voltage range is from 4.5 V to 5.5 V.
- What are the input logic levels compatible with this device?
The input logic levels are compatible with TTL (Transistor-Transistor Logic) levels.
- What is the propagation delay time of the 74HCT154D,653?
The propagation delay time is approximately 13 ns.
- What is the operating temperature range of this device?
The operating temperature range is from -40°C to +125°C.
- What types of packages are available for the 74HCT154D,653?
It is available in SO24, TSSOP24, and DHVQFN24 packages.
- Does the 74HCT154D,653 have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- Is the 74HCT154D,653 compliant with any industry standards?
Yes, it complies with JESD8C and JESD7A standards.
- Can the 74HCT154D,653 be used in automotive applications?
Yes, it is suitable for automotive applications due to its robust ESD protection and wide operating temperature range.
- What are some common applications of the 74HCT154D,653?
Common applications include digital logic circuits, communication systems, automotive electronics, and industrial control systems.
