HT46R065V
24V VFD Type 8-Bit OTP MCU
Technical Document
·
-
Features
CPU Features
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Operating voltage:
·
63 powerful instructions
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6-level subroutine nesting
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Bit manipulation instruction
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Low voltage reset function
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Wide range of available package types
f
SYS
= 4MHz: 2.2V~5.5V
f
SYS
= 8MHz: 3.0V~5.5V
f
SYS
= 12MHz: 4.5V~5.5V
·
Up to 0.33ms instruction cycle with 12MHz system
clock at V
DD
= 5V
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Sleep mode and wake-up functions to reduce
Peripheral Features
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21 bidirectional I/O lines
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4 channel 12-bit ADC
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1 channel 8-bit PWM
·
Software controlled 4-SCOM lines LCD driver with
power consumption
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Oscillator types:
External high freuency Crystal -- HXT
External RC -- ERC
Internal RC -- HIRC
External low frequency crystal -- LXT
·
Four operational modes: Normal, Slow, Sleep
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Fully integrated internal 4MHz, 8MHz and 12MHz
1/2 bias
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External interrupt input shared with an I/O line
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Two 8-bit programmable Timer/Event
Counter with overflow interrupt and prescaler
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Time-Base function
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Programmable Frequency Divider - PFD
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Integrated DC 24V to 5V LDO regulator
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Buzzer and filament 5V to 24V output level shifter
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24-bit shift register/latch for VFD panel driving 24
oscillator requires no external components
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2048´15 program memory
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96´8 data memory RAM
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Watchdog Timer function
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LIRC oscillator function for watchdog timer
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All instructions executed in one or two instruction
grid/segment outputs
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Integrated 3-line serial VFD interface for
cycles
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Table read instructions
grid/segment display control
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52-pin QFP package
General Description
The Enhanced A/D MCUs are a series of 8-bit high per-
formance, RISC architecture microcontrollers specifi-
cally designed for a wide range of applications. The
usual Holtek microcontroller features of low power con-
sumption, I/O flexibility, timer functions, oscillator op-
tions, 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 main-
taining a high level of cost effectiveness. The fully inte-
grated 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 in-
clude industrial control, consumer products, household
appliances subsystem controllers, etc.
Rev. 1.00
1
October 20, 2009
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
