Overview
The 74HCT154DB,118 is a 4-to-16 line decoder/demultiplexer produced by Nexperia USA Inc. This integrated circuit decodes four binary weighted address inputs (A0 to A3) into sixteen mutually exclusive outputs (Y0 to Y15). It features two input enable (E0 and E1) inputs, allowing for flexible operation as either a decoder or a demultiplexer. The device is part of the 74HCT series, which is compatible with TTL logic levels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type Number | 74HCT154DB,118 | - |
| Supply Voltage (VCC) | 4.5 - 5.5 | V |
| Logic Switching Levels | TTL | - |
| Output Drive Capability | ± 4 | mA |
| Propagation Delay (tpd) | 13 ns (typical at VCC = 4.5 V to 5.5 V) | ns |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | SSOP24 (0.209", 5.30mm Width) | - |
| Mounting Type | Surface Mount | - |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | - |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, but optimized for 4.5 V to 5.5 V for TTL compatibility.
- CMOS Low Power Dissipation: Despite being TTL compatible, it benefits from CMOS low power characteristics.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- 16-Line Demultiplexing Capability: Decodes 4 binary-coded inputs into 16 mutually-exclusive outputs.
- Input Levels: Compatible with TTL logic levels.
- ESD Protection: Compliant with ANSI/ESDA/JEDEC standards for HBM and CDM protection.
- Multiple Package Options: Available in various packages including SSOP24.
Applications
The 74HCT154DB,118 is versatile and can be used in a variety of applications, including:
- Digital Decoding: Decoding binary inputs to control multiple outputs.
- Demultiplexing: Routing a single input signal to one of multiple output lines based on the address inputs.
- Control Systems: In industrial control systems where multiple outputs need to be controlled based on a few input signals.
- Communication Systems: In data transmission and reception systems where data needs to be routed to different channels.
Q & A
- What is the primary function of the 74HCT154DB,118?
The primary function is to decode four binary weighted address inputs into sixteen mutually exclusive outputs, and it can also operate as a 1-to-16 demultiplexer.
- What is the supply voltage range for the 74HCT154DB,118?
The supply voltage range is from 2.0 V to 6.0 V, but it is optimized for 4.5 V to 5.5 V for TTL compatibility.
- What are the logic switching levels for this device?
The logic switching levels are TTL (Transistor-Transistor Logic) compatible.
- What is the propagation delay of the 74HCT154DB,118?
The typical propagation delay is 13 ns at VCC = 4.5 V to 5.5 V.
- What is the operating temperature range of the device?
The operating temperature range is -40°C to +125°C.
- What package types are available for the 74HCT154DB,118?
The device is available in SSOP24 (0.209", 5.30mm Width) among other packages.
- Does the 74HCT154DB,118 have ESD protection?
Yes, it has ESD protection compliant with ANSI/ESDA/JEDEC standards for HBM and CDM.
- Can the 74HCT154DB,118 be used as a demultiplexer?
Yes, it can be used as a 1-to-16 demultiplexer by using one of the enable inputs as the multiplexed data input.
- What are the key benefits of using the 74HCT154DB,118?
The key benefits include wide supply voltage range, low power dissipation, high noise immunity, and robust ESD protection.
- Is the 74HCT154DB,118 RoHS compliant?
Yes, the device is RoHS compliant.
