HCS515-I/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
HCS515-I/SL is a KEELOQ code-hopping decoder IC from Microchip Technology in a 14-pin SOIC package for remote keyless entry systems. It supports secure rolling code authentication with a 64-bit encryption key for tamper-resistant access control. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- HCS515-I/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4000(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- KEELOQ code-hopping algorithm with 64-bit encryption key providing secure rolling code authentication for keyless entry
- 14-pin SOIC package enabling straightforward PCB integration in garage door openers and automotive RKE receiver modules
- On-chip EEPROM for storing 64-bit manufacturer code and synchronization counter eliminating external memory requirements
Applications
HCS515-I/SL is used in automotive remote keyless entry systems, garage door openers, and building access control receivers that require secure code-hopping authentication. It decodes encrypted rolling codes transmitted by KEELOQ-compatible key fobs operating at 433 MHz or 315 MHz RF frequencies. The IC is also employed in industrial wireless control panels and home automation systems where replay-attack-resistant entry authentication is essential.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max | 2mA |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 HCS515-I/SL:
Frequently Asked Questions
How many bits does the HCS515-I/SL use for its KEELOQ encryption key, and how does this prevent replay attacks?
The HCS515-I/SL uses a 64-bit manufacturer encryption key for the KEELOQ algorithm. Each transmitted code is uniquely encrypted and includes a 16-bit synchronization counter, so the receiver validates both the counter value and the encrypted payload. Even if an attacker captures a valid code transmission, replaying it fails because the counter has already advanced.
What RF frequency bands are compatible with HCS515-I/SL in remote keyless entry designs?
HCS515-I/SL is a baseband decoder IC and is frequency-agnostic; it decodes the demodulated digital data stream from any RF front-end module. Common system integrations operate at 315 MHz for North American automotive applications and 433.92 MHz for European markets, with data rates typically around 2 kbps to 4 kbps depending on the RF module used.
For a garage door controller using HCS515-I/SL, what is the maximum number of transmitters that can be enrolled?
HCS515-I/SL supports enrollment of up to 8 transmitters when used with recommended external EEPROM storage for serial numbers. Each enrolled transmitter requires a 32-bit serial number and a 16-bit synchronization counter stored in memory. The 14-pin SOIC form factor easily accommodates a small microcontroller and EEPROM on a single compact PCB.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0700 | $3.07 |
| 2+ | $3.0090 | $6.02 |
| 9+ | $2.6400 | $23.76 |
| 29+ | $2.4000 | $69.60 |
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