Part No. VDD System
Clock
Program
Memory
Data
Memory
I/O LCD Segment
Share
Output
Timer Interrupt A/D PWM PFD Interface Stack Package
8-bit 16-bit RTC Ext. Int.
HT56R62* 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
2Kx14 128x8 20 24x4
or
25x3
16 2 -- v 2 4 12-bitx6 12-bitx3 v SPI/I2C 6 52QFP,
64LQFP
HT56R64 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
4Kx15 192x8 24 32x4
or
33x3
24 1 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 8 52QFP,
64LQFP, 100QFP
HT56R65* 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
8Kx16 576x8 24 40x4
or
41x3
24 2 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 12 52QFP,
64LQFP, 100QFP
HT56R66* 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
16Kx16 1152x8 32 48x4
or
49x3
24 3 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 12 52QFP,
64LQFP, 100QFP
HT56R67* 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
32Kx16 2304x8 32 48x4
or
49x3
24 3 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 12 52QFP,
64LQFP, 100QFP
HT56R642* 2.2V~
5.5V
400kHz~
12MHz or
32768Hz
4Kx15 384x8 24 16x16
or
24x8
16 1 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 8 64LQFP, 100QFP
HT56R644*
 
2.2V~
5.5V
400kHz~
12MHz or
32768Hz
4Kx15 576x8 24 32x16
or
40x8
24 1 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 8 100QFP
HT56R654* 8Kx16 1152x8 2 12
HT56R656
 
2.2V~
5.5V
400kHz~
12MHz or
32768Hz
8Kx16 1152x8 24 48x16
or
56x8
24 2 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 12 100QFP
HT56R666 16Kx16 3
HT56R668
 
2.2V~
5.5V
400kHz~
12MHz or
32768Hz
16Kx16 2304x8 24 64x16
or
72x8
24 3 1 v 2 4 12-bitx8 12-bitx4 v SPI/I2C 12 100QFP , 128QFP
HT56R678 32Kx16
* Under development, available in 3Q, 2008.
Note:  This devices is only available in OTP versions.