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HT48R064D/065D/066D -- Enhanced I/O Type MCU
with High Current LED Driver (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: 3.3V~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 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 6-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 driver with 1/2 bias
- External interrupt input shared with an I/O line
- Up to three 8-bit programmable Timer/Event Counter with overflow
interrupt and prescaler
- Time-Base function
- Programmable Frequency Divider -- PFD
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