Overview
The 74HC138D-Q100HL, produced by Nexperia USA Inc., is a 3-to-8 line decoder/demultiplexer with inverting outputs. This integrated circuit is part of the 74HC family, known for its high-speed CMOS logic. It decodes three binary weighted address inputs (A0, A1, and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1, E2, and E3), allowing for easy expansion and demultiplexing capabilities.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | 5.0 | 6.0 | V |
| VI (Input Voltage) | 0 | - | VCC | V |
| VO (Output Voltage) | 0 | - | VCC | V |
| Tamb (Ambient Temperature) | -40 | - | 125 | °C |
| tpd (Propagation Delay) | - | 12 | - | ns |
| IO (Output Drive Capability) | - | ±5.2 | - | mA |
| ICC (Supply Current) | - | - | 160 | μA |
| CI (Input Capacitance) | - | 3.5 | - | pF |
Key Features
- Decoding and Demultiplexing Capability: Decodes three binary weighted address inputs to eight mutually exclusive outputs, and can be used as an eight-output demultiplexer.
- Multiple Enable Inputs: Features three enable inputs (E1, E2, and E3) for easy expansion and demultiplexing.
- Wide Supply Voltage Range: Operates from 2.0 to 6.0 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Provides high noise immunity and latch-up performance exceeding 100 mA per JESD 78 Class II Level B.
- ESD Protection: Complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and JS-002 class C3 (exceeds 1000 V).
- Multiple Package Options: Available in SO16, TSSOP16, and DHVQFN16 packages.
Applications
- Memory Chip Select Decoding: Ideal for decoding memory chip select lines.
- Demultiplexing: Can be used as a demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes.
- Industrial and Automotive Systems: Suitable for use in various industrial and automotive applications due to its wide operating temperature range and robust design.
- Consumer Electronics: Used in consumer electronics for decoding and demultiplexing functions.
Q & A
- What is the primary function of the 74HC138D-Q100HL IC?
The primary function is to decode three binary weighted address inputs to eight mutually exclusive outputs and to act as a demultiplexer.
- What is the supply voltage range for the 74HC138D-Q100HL?
The supply voltage range is from 2.0 to 6.0 V.
- What are the key features of the enable inputs on the 74HC138D-Q100HL?
The device has three enable inputs (E1, E2, and E3) which allow for easy expansion and demultiplexing capabilities.
- What is the propagation delay of the 74HC138D-Q100HL?
The propagation delay is typically 12 ns.
- What is the output drive capability of the 74HC138D-Q100HL?
The output drive capability is ±5.2 mA.
- Does the 74HC138D-Q100HL have ESD protection?
Yes, it complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and JS-002 class C3 (exceeds 1000 V).
- What are the available package options for the 74HC138D-Q100HL?
It is available in SO16, TSSOP16, and DHVQFN16 packages.
- What is the operating temperature range for the 74HC138D-Q100HL?
The operating temperature range is from -40 °C to +125 °C.
- Is the 74HC138D-Q100HL suitable for automotive applications?
Yes, it is suitable due to its robust design and wide operating temperature range.
- How can the 74HC138D-Q100HL be used in memory chip select decoding?
It can be used to decode memory chip select lines efficiently due to its decoding and demultiplexing capabilities.
