Part No. VDD System
Clock		 Program
Memory		 Data
Memory		 I/O Timer Interrupt I2C A/D PWM PFD UART Stack Package
8-bit 16-bit Ext. Int.
HT46R22
HT46C22		 2.2V~
5.5V		 400kHz~
8MHz		 2Kx14 64x8 19 1 -- 1 3 v 9-bitx8 8-bitx1 v -- 6 24SKDIP/SOP
HT46R23
HT46C23		 2.2V~
5.5V		 400kHz~
8MHz		 4Kx15 192x8 23 -- 1 1 3 v 10-bitx8 8-bitx2 v -- 8 24SKDIP/SOP,
28SKDIP/SOP
HT46R232
HT46C232
 2.2V~
5.5V		 400kHz~
8MHz		 4Kx16 192x8 40 -- 2 1 4 v 10-bitx8 8-bitx4 v -- 8 28SKDIP/SOP,
48SSOP

HT46R24
HT46C24

 2.2V~
5.5V		 400kHz~
8MHz		 8Kx16 384x8 40 -- 2 1 4 v 10-bitx8 8-bitx4 v -- 16 28SKDIP/SOP,
48SSOP
HT46RU25
HT46CU25		 2.2V~
5.5V		 400kHz~
8MHz		 16Kx16 576x8 48 1 2 1 5 v 12-bitx8 8-bitx4 v v 16 48/56SSOP
HT46RU26
HT46CU26		 2.2V~
5.5V		 400kHz~
8MHz		 32Kx16 768x8 48 1 2 1 5 v 12-bitx8 8-bitx4 v v 16 48/56SSOP

Note: Part numbers including "C" are mask version devices while "R" are OTP devices.

 
Part No. VDD System
Clock		 Program
Memory		 Data
Memory		 I/O 8-bit
Timer		 Interrupt A/D PWM PFD Stack Package
Ext. Int.
HT46R51A 2.2V~
5.5V		 400kHz~
8MHz		 1Kx15 96x8 14 1 1 2 12-bitx5 8-bitx1 v 6 16NSOP, 18DIP,
20SOP/SSOP
HT46R52A 2.2V~
5.5V		 400kHz~
8MHz		 2Kx15 128x8 14 1 1 2 12-bitx5 8-bitx1 v 6 16NSOP, 18DIP,
20SOP/SSOP
HT46R53A 2.2V~
5.5V		 400kHz~
8MHz		 2Kx15 192x8 22 1 1 2 12-bitx8 8-bitx1 v 6 28SKDIP/SOP
HT46R54A 2.2V~
5.5V		 400kHz~
8MHz		 4Kx15 208x8 22 1 1 2 12-bitx8 8-bitx1 v 6 28SKDIP/SOP
Note: These devices are only available in OTP versions.