Overview
The 74LVC138APW-Q100118 is a 3-to-8 line decoder/demultiplexer produced by NXP USA Inc. This integrated circuit 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 device is designed for high-performance applications, including memory-decoding and data-routing, and is compatible with both 3.3 V and 5 V logic levels.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC138APW | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 2.7 | Low | -40 to 125 | 126 | 4.8 | 55.9 | TSSOP16 |
Key Features
- Decodes three binary weighted address inputs to eight mutually exclusive outputs.
- Three enable inputs (E1, E2, and E3) for easy parallel expansion and demultiplexing.
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times.
- 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.
- Ideal for memory chip select decoding.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
Applications
The 74LVC138APW-Q100118 is suitable for various high-performance applications, including:
- Memory-decoding and data-routing.
- Mixed 3.3 V and 5 V environments as a translator.
- Parallel expansion to a 1-of-32 decoder with multiple ICs.
- Demultiplexing applications using active LOW enable inputs.
Q & A
- What is the primary function of the 74LVC138APW-Q100118?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs. - What are the supply voltage ranges for this device?
The supply voltage range is from 1.2 V to 3.6 V. - How many enable inputs does the 74LVC138APW-Q100118 have?
It has three enable inputs (E1, E2, and E3). - What is the output drive capability of this device?
The output drive capability is ± 24 mA. - Is the 74LVC138APW-Q100118 suitable for mixed voltage environments?
Yes, it can be used in mixed 3.3 V and 5 V environments. - What type of package does the 74LVC138APW-Q100118 come in?
The device comes in a TSSOP16 package. - What is the operating temperature range for this device?
The operating temperature range is from -40 °C to 125 °C. - Does the 74LVC138APW-Q100118 have ESD protection?
Yes, it has ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V. - Can the 74LVC138APW-Q100118 be used for demultiplexing?
Yes, it can be used as an eight-output demultiplexer. - What logic levels does the 74LVC138APW-Q100118 support?
It supports CMOS and LVTTL logic levels.
