HT48R063B/064B/065B/066B -- Enhanced I/O Type 8-Bit OTP MCU
(Enhanced OTP MCU)
General Description
The Enhanced I/O MCUs are a series of 8-bit high performance, RISC architecture microcontrollers specifically designed for a wide range of applications. The usual Holtek microcontroller features of low power consumption, I/O flexibility, timer functions, oscillator options, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide devices with a huge range of functional options while still maintaining a high level of cost effectiveness. The fully integrated system oscillator HIRC, which requires no external components and which has three frequency selections, opens up a huge range of new application possibilities for these devices, some of which may include industrial control, consumer products, household appliances subsystem controllers, etc.
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Features
CPU Features
- Operating voltage:
fSYS= 4MHz: 2.2V~5.5V
fSYS= 8MHz: 3.0V~5.5V
fSYS= 12MHz: 4.5V~5.5V
- Up to 0.33us instruction cycle with 12MHz system clock at VDD= 5V
- Oscillator types:
External high freuency Crystal -- HXT
External RC -- ERC
Internal high frequency RC -- HIRC
External low frequency crystal -- LXT
- Three operational modes: Normal, Slow, Sleep
- Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components
- Watchdog Timer function
- LIRC oscillator function for watchdog timer
- All instructions executed in one or two instruction cycles
- Table read instructions
- 63 powerful instructions
- Up to 4-level subroutine nesting
- Bit manipulation instruction
- Low voltage reset function
- Wide range of available package types
Peripheral Features
- Up to 26 bidirectional I/O lines
- Software controlled 4-SCOM lines LCD COM driver with 1/2 bias
- External interrupt input shared with an I/O line
- Up to two 8-bit programmable Timer/Event
Counter with overflow interrupt and prescaler
- Time-Base function
- Programmable Frequency Divider - PFD
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