Overview
The 74HCT253DB,118 is a dual 4-bit multiplexer produced by Nexperia USA Inc. This component is part of the 74HCT series and is designed to select one of four binary inputs and route it to the output based on the select inputs. It features a 3-state output, which can be set to a high-impedance OFF-state using the output enable input (nOE). The device includes clamp diodes on the inputs, allowing the use of current limiting resistors to interface with voltages beyond the supply voltage (VCC).
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Type Number | 74HCT253DB,118 | - |
| Package | 16-SSOP (SOT338-1) | - |
| Supply Voltage Range | 2.0 V to 6.0 V | - |
| Input Levels | TTL level | - |
| Operating Temperature Range | -40 °C to +125 °C | - |
| Output Current (High/Low) | 6 mA / 6 mA | - |
| Propagation Delay (tpd) | 20 ns to 60 ns (depending on VCC and load) | - |
| Enable/Disable Time (ten/tdis) | 14 ns to 45 ns (depending on VCC) | - |
| ESD Protection | HBM: >2000 V, CDM: >1000 V | - |
Key Features
- Non-inverting data path: Ensures that the output signal is the same as the selected input signal.
- 3-state outputs: Outputs can be set to a high-impedance OFF-state, allowing direct interface with system buses.
- Common select inputs: Shared select inputs (S0 and S1) for both multiplexers.
- Separate output enable inputs: Each multiplexer has its own output enable input (nOE).
- Wide supply voltage range: Operates from 2.0 V to 6.0 V.
- CMOS low power dissipation: Low power consumption.
- High noise immunity: Robust against noise.
- Latch-up performance: Exceeds 100 mA per JESD 78 Class II Level B.
- Compliance with JEDEC standards: Meets JESD8C and JESD7A standards.
- Multiple package options: Available in various packages, including SSOP16.
Applications
- Data selectors: Used to select data from multiple sources.
- Data multiplexers: Multiplexes multiple data streams into a single output.
Q & A
- What is the function of the 74HCT253DB,118?
The 74HCT253DB,118 is a dual 4-bit multiplexer that selects one of four binary inputs and routes it to the output based on the select inputs.
- What is the supply voltage range for the 74HCT253DB,118?
The supply voltage range is from 2.0 V to 6.0 V.
- What type of input levels does the 74HCT253DB,118 support?
The 74HCT253DB,118 supports TTL input levels.
- What is the operating temperature range for the 74HCT253DB,118?
The operating temperature range is from -40 °C to +125 °C.
- What is the purpose of the output enable input (nOE)?
The output enable input (nOE) sets the outputs to a high-impedance OFF-state when HIGH.
- Does the 74HCT253DB,118 have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What are the common applications of the 74HCT253DB,118?
Common applications include data selectors and data multiplexers.
- What package type is the 74HCT253DB,118 available in?
The 74HCT253DB,118 is available in a 16-SSOP (SOT338-1) package.
- Does the 74HCT253DB,118 comply with any industry standards?
Yes, it complies with JEDEC standards JESD8C and JESD7A.
- What is the propagation delay of the 74HCT253DB,118?
The propagation delay ranges from 20 ns to 60 ns depending on the supply voltage and load.
