View hcs365 datasheet:

HCS365 KEELOQ® Code Hopping Encoder FEATURES PACKAGE TYPES PDIP, SOIC Security S0 • Two programmable 32-bit serial numbers 8 VDD 1 • Two programmable 64-bit crypt keys S1 7 LED 2 • Two programmable 60-bit seed values • Each transmission is unique S2 6 DATA 3 • 67/69-bit transmission code length S3/SHIFT/ Vss 4 5 RFEN • 32-bit hopping code • Crypt keys are read protected HCS365 BLOCK DIAGRAM Operating Oscillator Power • 2.05-5.5V operation latching and Controller • Four button inputs RESET circuit switching LED • 15 functions available LED driver • Four selectable baud rates • Selectable minimum code word completion • Battery low signal transmitted to receiver EEPROM Encoder • Nonvolatile synchronization data DATA • PWM, VPWM, PPM, and Mancheste