HCS512-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
The HCS512-I/SO is a KEELOQ code-hopping encoder IC from Microchip Technology designed for secure remote keyless entry and access control applications. It provides rolling-code encryption in a single-function 18-pin SOIC package. Available in stock worldwide at competitive prices with standard lead times.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- HCS512-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- KEELOQ rolling-code encryption algorithm providing strong resistance against code grabbing and replay attacks
- Single-function encoder design simplifying remote keyless entry transmitter firmware and hardware integration
- 18-pin SOIC package enabling easy PCB integration in automotive key fobs, garage openers, and access control transmitters
- RoHS compliant and lead-free construction meeting environmental standards for automotive and consumer applications
Applications
The HCS512-I/SO is designed for secure wireless access control systems, including automotive remote keyless entry, garage door openers, and building access transmitters. Its KEELOQ rolling-code algorithm ensures that each transmitted code is unique, preventing unauthorized code capture and replay attacks. It is widely used in aftermarket automotive security products, industrial access systems, and consumer remote control devices requiring high-security one-way transmission.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-18 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| JESD-30 Code | R-PDSO-G18 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP18,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max | 10mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Telecom IC Type | DATA ENCRYPTION CIRCUIT |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| ## HCS512-I/SO Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for HCS512-I/SO:
Frequently Asked Questions
What encryption method does the HCS512-I/SO use?
The HCS512-I/SO uses the KEELOQ code-hopping (rolling code) algorithm developed by Microchip Technology. This algorithm generates a new encrypted code for each button press, making it virtually impossible for an attacker to replay a previously captured transmission to gain unauthorized access.
What are typical applications for the HCS512-I/SO?
Typical applications include automotive remote keyless entry (RKE) systems, garage door opener transmitters, building access control fobs, industrial remote controls, and consumer wireless security devices. The rolling-code security model makes it well-suited for any application where unauthorized code replay must be prevented.
What package does the HCS512-I/SO come in?
The HCS512-I/SO is available in an 18-pin SOIC (Small Outline Integrated Circuit) package with a 0.300-inch body width. This standard surface-mount package is compatible with automated PCB assembly and is widely used in automotive electronics, consumer remote controls, and access control hardware.
Is the HCS512-I/SO RoHS compliant?
Yes, the HCS512-I/SO is RoHS compliant and lead-free, as indicated by its Pbfree code and JESD-609 code e3. This compliance makes it suitable for use in automotive, consumer, and industrial products that must meet EU RoHS and similar global environmental regulations.
What is the difference between a rolling code and a fixed code encoder?
A rolling code encoder like the HCS512-I/SO generates a new unique code for every transmission using an encryption algorithm, so no two transmitted codes are ever the same. A fixed code encoder always sends the same code, making it vulnerable to code grabbing attacks where an attacker records and replays the transmission. Rolling codes provide significantly higher security for remote access applications.
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