HT12D-18DIP Holtek Integrated Circuit (Dual-In-Line Packages) In Stock
The Holtek HT12D-18DIP is a 12-bit series-to-parallel decoder IC operating from 2.4 V to 12 V supply, housed in an 18-pin PDIP package. It decodes 8-bit addresses and 4-bit data for wireless remote control and security systems. Available from stock worldwide with fast shipping.
- Manufacturer
- Holtek
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- HT12D-18DIP Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6010(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-bit serial-to-parallel decoder with 8-bit address and 4-bit data output, operating from 2.4 V to 12 V
- 18-pin PDIP package for easy through-hole assembly and breadboard prototyping
- Pairs with HT12E encoder for complete wireless data transmission link in remote control systems
Applications
The HT12D-18DIP is widely used in RF remote control systems, home automation, and wireless security applications where serial address and data decoding is required. Operating at 2.4 V to 12 V, it interfaces directly with common RF receiver modules and microcontrollers to decode 4-bit data payloads from matched HT12E transmitters.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the HT12D-18DIP support and how does it affect RF receiver pairing?
The HT12D-18DIP operates from 2.4 V to 12 V, allowing direct pairing with 3.3 V or 5 V RF receiver modules without additional regulation. This wide range simplifies design across battery-powered and mains-derived supply systems requiring 4-bit data decoding.
How many address bits and data bits does the HT12D-18DIP decode per transmission?
The HT12D decodes a 12-bit serial word consisting of 8 address bits and 4 data bits per received packet. This 8-bit address space allows up to 256 unique device codes, preventing cross-talk in systems with multiple remote control transmitters within the same area.
For a simple wireless door alarm using HT12D-18DIP, what package and pin count should the designer account for?
The HT12D-18DIP comes in an 18-pin PDIP package with 0.1-inch (2.54 mm) pin pitch, making it easy to mount on standard perf-board or breadboard for prototyping a door alarm circuit. The through-hole format supports manual soldering and reduces assembly complexity compared to surface-mount alternatives.
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Why Buy from FindMyChip
About Holtek
Holtek is a leading electronic component manufacturer. FindMyChip sources Holtek ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.7850 | $7.85 |
| 50+ | $0.6930 | $34.65 |
| 250+ | $0.6010 | $150.25 |
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