Overview
The 74LVC138ADB, produced by Nexperia USA Inc., is a 3-to-8 line decoder/demultiplexer integrated circuit. This device decodes three binary weighted address inputs (A0, A1, and A2) to eight mutually exclusive outputs (Y0 to Y7). It features three enable inputs (E1, E2, and E3), allowing for easy parallel expansion and demultiplexing capabilities. The 74LVC138A series is designed for use in mixed 3.3 V and 5 V environments, making it versatile for various electronic designs.
Key Specifications
| Parameter | Description |
|---|---|
| Type Number | 74LVC138ADB |
| Package Name | SSOP16 (SOT338-1) |
| Supply Voltage Range | 1.2 V to 3.6 V |
| Input Voltage Range | Up to 5.5 V |
| Enable Inputs | Three (E1, E2, E3) |
| Output Drive Capability | 50 Ω transmission lines at 125 °C |
| Operating Temperature Range | -40 °C to +85 °C and -40 °C to +125 °C |
| 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
- Overvoltage tolerant inputs up to 5.5 V
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low power consumption
- Direct interface with TTL levels
- Demultiplexing capability
- Multiple input enable for easy expansion
- Ideal for memory chip select decoding
- Mutually exclusive outputs
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
Applications
- Memory chip select decoding
- Demultiplexing applications
- Mixed 3.3 V and 5 V environments
- Automotive and industrial electronics
- Consumer and mobile devices
Q & A
- What is the primary function of the 74LVC138ADB?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs.
- What is the package type of the 74LVC138ADB?
The package type is SSOP16 (SOT338-1).
- What is the supply voltage range for the 74LVC138ADB?
The supply voltage range is from 1.2 V to 3.6 V.
- Can the 74LVC138ADB be used in mixed voltage environments?
- What is the ESD protection level of the 74LVC138ADB?
The ESD protection level is HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, and CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- What are the operating temperature ranges for the 74LVC138ADB?
The operating temperature ranges are -40 °C to +85 °C and -40 °C to +125 °C.
- Can the 74LVC138ADB be used as a demultiplexer?
- What is the output drive capability of the 74LVC138ADB?
The output drive capability is 50 Ω transmission lines at 125 °C.
- Is the 74LVC138ADB compliant with any specific standards?
- What is the current status of the 74LVC138ADB product?
The product is currently discontinued and obsolete.
