Part No. VDD System
Clock
Program
Memory
Data Memory I/O 16-bit
Timer
Built-in
DC/DC
SPI Built-in OSC Stack Package
SRAM EEPROM
HT82M73E 2.0V~3.3V 4MHz~6MHz 2Kx15 128x8 -- 20 1 v 1 -- 4 20/28SOP/SSOP
HT82K73E 2.0V~3.3V 4MHz~6MHz 2Kx15 128x8 -- 39 1 v 1 -- 4 48SSOP
HT82M75E* 2.0V~3.3V 6MHz 4Kx15 128x8 128x8 24 1 v 1 v 4 20/28SOP/SSOP, 32QFN
HT82K75E* 2.0V~3.3V 6MHz 4Kx15 160x8 128x8 40 1 v 1 v 4 48SSOP
* Under development, available in 1Q, 2009.
Note: These devices are only available in OTP versions.  

¡@