HT46R065V Datasheet, PDF (1/72 Pages) Holtek Semiconductor Inc – 24V VFD Type 8-Bit OTP MCU

HT46R065V
24V VFD Type 8-Bit OTP MCU
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
CPU Features
· Operating voltage:
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
· Sleep mode and wake-up functions to reduce
power consumption
· Oscillator types:
External high freuency Crystal -- HXT
External RC -- ERC
Internal RC -- HIRC
External low frequency crystal -- LXT
· Four operational modes: Normal, Slow, Sleep
· Fully integrated internal 4MHz, 8MHz and 12MHz
oscillator requires no external components
· 2048´15 program memory
· 96´8 data memory RAM
· _{Watchdog Timer function}
· _{LIRC oscillator function for watchdog timer}
· _{All instructions executed in one or two instruction}
cycles
· _{Table read instructions}
· 63 powerful instructions
· 6-level subroutine nesting
· Bit manipulation instruction
· Low voltage reset function
· Wide range of available package types
Peripheral Features
· 21 bidirectional I/O lines
· 4 channel 12-bit ADC
· 1 channel 8-bit PWM
· Software controlled 4-SCOM lines LCD driver with
1/2 bias
· External interrupt input shared with an I/O line
· Two 8-bit programmable Timer/Event
Counter with overflow interrupt and prescaler
· Time-Base function
· Programmable Frequency Divider - PFD
· Integrated DC 24V to 5V LDO regulator
· Buzzer and filament 5V to 24V output level shifter
· _{24-bit shift register/latch for VFD panel driving 24}
grid/segment outputs
· _{Integrated 3-line serial VFD interface for}
grid/segment display control
· _{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