HD14556B Dual Binary to 1-of-4 Decoder / Demultiplexer IC Dip-16
The HD14556B is a dual binary to 1-of-4 decoder/demultiplexer IC with a 3.0 V to 18 V supply range, offering flexible output control in digital systems.
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Buy NowHD14556B Dual Binary to 1-of-4 Decoder / Demultiplexer IC Dip-16
The HD14556B Dual Binary to 1-of-4 Decoder / Demultiplexer IC, available in a DIP-16 package, is a versatile and efficient component widely used in digital circuit designs. It has two select inputs (A and B), an active low enable input (E), and four mutually exclusive outputs (Q0, Q1, Q2, Q3). This IC is designed to convert binary input signals into one of four outputs, providing a powerful decoding function with reliable switching.
The HD14556B IC utilizes CMOS technology and is structured to operate with a supply voltage range of 3.0 Vdc to 18 Vdc. It supports active high or active low outputs depending on the application requirements. The device can be used for a wide range of tasks, including address decoding, memory selection, and demultiplexing. The decoder uses a simple two-bit binary input to generate one of the four outputs, offering efficient and flexible switching capabilities.
This IC can be easily expanded for larger decoding functions by connecting additional units, enabling complex decoding solutions. Its applications include digital data transmission systems, code conversion, and address decoding in both commercial and industrial systems. The device is essential for various control and automation systems where binary input must be converted into discrete, mutually exclusive outputs.
Features:
- Dual independent 2→4 decoder/demultiplexer.
- Active-low (MC14556B) output variants.
- Diode protection on inputs.
- Buffered outputs (capable of driving TTL loads).
- Expandable for larger decoding networks.
- Low power CMOS construction.
- Automotive-qualified prefixes available (NLV/AEC-Q100).
Specifications:
| Parameter | Value |
|---|---|
| Supply voltage range (VDD): | 3.0V to 18.0V |
| DC supply voltage absolute max: | −0.5V to +18.0V |
| Output drive (source/sink): | IOH / IOL: device can source/sink small TTL loads |
| Quiescent current (per package): | IDD ranges: 5μA to 20μA depending on VDD and temperature |
| Total dynamic supply current formula: | IT ≈ (0.85–2.60 μA/kHz)·f + IDD (formula per VDD) |
| Input / output voltage limits: | VIN, VOUT: −0.5V to VDD + 0.5V |
| Operating temperature (ambient): | −55°C to +125°C |
| Package examples: | SOIC-16 (D), other packages/ordering codes available |
Pinout Diagram:
Footprint:
Applications:
- Address Decoding.
- Memory Selection Control.
- Digital Data Transmission.
- Signal Routing.
- Control Systems.
Package includes:
- 1x HD14556B Dual Binary to 1-of-4 Decoder / Demultiplexer IC Dip-16.
Documents:
| Weight | 2 g |
|---|---|
| Dimensions | 20 × 10 × 10 mm |
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