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Home - KEELOQ Authentication Products - Encoders - HCS370 Device, download datasheet
Download Datasheets HCS370 Device |
The HCS370 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS370 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 HCS370 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28/32-bit serial number and 5/3 status bits to create a 69-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 HCS370 a very secure unit. The HCS370 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. The HCS370 operates over a wide voltage range of 2.0V to 5.5V and has four button inputs in an 14-pin configuration. This allows the system designer the freedom to utilize up to 15 functions. Additional features include a PWM, VPWM, PPM, Manchester encoding, an internal tunable oscillator, Step-up voltage regulation, Dual encoder operation, 6 inputs and a Queue counter.
Datasheet and Other Documentation |
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Specification Chart
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Reception Length Bits |
Transmitters Supported |
Operating Voltages |
Functions |
69 |
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2.0V to 5.5V |
15 |
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Additional Features |
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Dual encoder operation, PWM, Manchester, VPWM, PPM Modulation formats, 6 button inputs with queue bits. RFEN PLL control output for FSK and ASK, 20 bit counter value, step-up voltage regulator |
Package Options |
14 PDIP(P), 14 SOIC 150mil(SN), 14 TSSOP(ST) |
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