Overview
The 74HCT238D,652 is a 3-to-8 line decoder/demultiplexer integrated circuit produced by NXP Semiconductors. This device is part of the 74HCT series and is designed to decode three binary weighted address inputs (A0, A1, and A2) into eight mutually exclusive outputs (Y0 to Y7). It features three enable inputs (E1, E2, and E3), allowing for flexible control over the output states. The 74HCT238D,652 is widely used in digital circuits for decoding and demultiplexing applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | NXP Semiconductors | |
| Part Number | 74HCT238D,652 | |
| Package | 16-SOIC (0.154, 3.90mm Width) | |
| Number of Pins | 16 | |
| Supply Voltage (VCC) | 4.5 V to 5.5 V | V |
| Propagation Delay (tpd) | 19 ns to 53 ns | ns |
| Ambient Temperature Range | -40 °C to +125 °C | °C |
| Input Voltage Levels | TTL level |
Key Features
- Decodes three binary weighted address inputs to eight mutually exclusive outputs.
- Features three enable inputs (E1, E2, and E3) for flexible control.
- Wide supply voltage range from 4.5 V to 5.5 V.
- CMOS low power dissipation.
- High noise immunity.
- Demultiplexing capability.
- Multiple input enable for easy expansion to larger decoders.
- Ideal for memory chip select decoding.
- Active HIGH mutually exclusive outputs.
- Complies with JEDEC standards (JESD8C and JESD7A).
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
Applications
- Memory chip select decoding.
- Demultiplexing in digital circuits.
- Parallel expansion to larger decoders.
- Interface circuits requiring TTL input levels.
- General-purpose decoding and demultiplexing in electronic systems.
Q & A
- What is the primary function of the 74HCT238D,652 IC?
The primary function is to decode three binary weighted address inputs into eight mutually exclusive outputs.
- What is the supply voltage range for the 74HCT238D,652?
The supply voltage range is from 4.5 V to 5.5 V.
- What type of input voltage levels does the 74HCT238D,652 support?
The 74HCT238D,652 supports TTL input voltage levels.
- How many enable inputs does the 74HCT238D,652 have?
The device has three enable inputs (E1, E2, and E3).
- What is the typical propagation delay of the 74HCT238D,652?
The typical propagation delay ranges from 19 ns to 53 ns.
- What are the temperature ranges specified for the 74HCT238D,652?
The device is specified to operate from -40 °C to +125 °C.
- Does the 74HCT238D,652 have ESD protection?
- Can the 74HCT238D,652 be used as a demultiplexer?
- What are some common applications of the 74HCT238D,652?
- Does the 74HCT238D,652 comply with any industry standards?
