| Part No. |
VDD |
System
Clock |
Program
Memory |
Data
Memory |
I/O |
LED
Driver
Output |
LED Share I/O |
LED Share Output |
Timer |
PFD |
Stack |
Package |
| 8-bit |
RTC |
| HT48R52A |
2.2V~5.5V |
400kHz~8MHz
or 32768Hz |
2Kx14 |
88x8 |
8 |
16x16 |
8 |
24 |
1 |
v |
-- |
4 |
44/52QFP
44LQFP |
| HT48R54A |
2.2V~5.5V |
400kHz~8MHz
or 32768Hz |
4Kx15 |
192x8 |
8 |
16x16 |
8 |
24 |
2 |
v |
v |
6 |
44/52QFP
44LQFP |
Note: 1. These devices are only available in OTP versions.
2. The RTC can be used as the system clock giving a typical operating current of 20mA at 3V.
3. The standby current is
1mA at 3V with the RTC still running.
|
