HCS320
The HCS320 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS320 utilizes Microchip’s patented KEELOQ® hopping technology, which incorporates high security, a small package outline, and low cost, to make this device a perfect solution for unidirectional remote keyless entry systems and access control systems. The HCS320 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and 6 status bits to create a 66-bit transmission stream. The length of the transmission eliminates the threat of code scanning and the code hopping mechanism makes each transmission unique, thus rendering code capture and re-send (code grabbing) schemes useless. The encoder key, serial number, and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS320 a very secure unit. The HCS320 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. Additional features include Shift operation, an LED Drive, Overflow bits, Time-out and Battery low indicator. The HCS320 operates in a voltage range of 3.5V to 13.0V.
| Parameter|
Parameter Name
Value
| Value | |
Device Description
KEELOQ® Encoder Devices
|
KEELOQ® Encoder Devices
| |
Operating Voltage (V)
3.5 to 13.0
|
3.5 to 13.0
| |
Function Codes
16
|
16
| |
Transmission Code Length Bits
66
|
66
| |
Code Hoppings Bits
32
|
32
| |
Features
Shift Operation, LED Drive, Overflow bits, Time-out, Battery low indicator
|
Shift Operation, LED Drive, Overflow bits, Time-out, Battery low indicator
| |
Encryption Key Length
64
|
64
| |
Seed Length
32
|
32
|
|
Documents
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| HCS320-I/P | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 |  |  |
| HCS320/P | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 | | |
| HCS320/SN | 0.078000 | 0.160000 | 8 | SOIC | .150In(3.90mm) | Matte Tin | e3 | | |
| HCS320-I/SN | 0.078000 | 0.160000 | 8 | SOIC | .150In(3.90mm) | Matte Tin | e3 | | |
