Part No. Supply Freq. Modulation Memory (Data) Baud Rate @ 3V (bps) Check Anti-Collision Encoding Package
HT672A 13.56MHz ASK 96 (64) 5K CRC-16 -- PWM Chip Form
HT672B 13.56MHz ASK 40 (32) 10K CRC-8 -- PWM Chip Form
HT6740 13.56MHz ASK 17 (11) 10K CRC-6 v PWM Chip Form