USB 1.1 Full Speed
Part No. VDD System
Clock
Program
Memory
Data
Memory
I/O Timer Interrupt End
Point
LVR PWM I/O VDD Option SPI Stack Package
8-bit 16-bit Ext. Int.
HT82A520R 2.2V~
5.5V
6MHz or
12MHz
4Kx15 160x8 24 -- 1 1 3 4 v 12-bitx3 v 1 6 20/24/28SSOP, 32QFN
HT82A523R 3.3V~
5.5V
6MHz or
12MHz
4Kx15 192x8 40 1 1 1 5 4 v -- v 2 6 32LQFP,
48SSOP, 52QFP, 64LQFP
Note: These devices are only available in OTP versions.