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HT48R52A -- I/O Type 8-Bit OTP MCU with 16x16 High Current LED Driver
General Description
This device is an 8-bit high performance, RISC architecture microcontroller specifically designed for multiple I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc.
Features
Operating voltage:
fSYS=32768Hz: 2.2V~5.5V
fSYS=4MHz: 2.2V~5.5V
fSYS=8MHz: 3.3V~5.5V
2k×14 Program memory ROM
88×8 data memory RAM
8 bidirectional I/O lines
Max. 16x16 LED driver output
8 LED shared I/O lines
24 LED shared output
One external interrupt input
One internal interrupt
8 bit programmable timer/event counter
4-level subroutine nesting
Watchdog Timer (WDT)
Low voltage reset (LVR)
External RC and 32768Hz crystal oscillator
Dual clock system offers three operating modes
- Normal mode: Both RC and 32768Hz clock active
- Slow mode: 32768Hz clock only
- Idle mode: Periodical wake-up by watchdog timer
overflow
HALT function and wake-up feature reduce power consumption
14-bit table read instructions
63 powerful instructions
One instruction cycle: 4 system clock periods
All instructions in 1 or 2 instruction cycles
Bit manipulation instructions
Up to 0.5μs instruction cycle with 8MHz system clock
44/52-pin QFP and 44-pin LQFP packages