HT46R4A Datasheet, PDF (1/60 Pages) Holtek Semiconductor Inc – Cost-Effective A/D Type 8-Bit MCU

HT46R4A
Cost-Effective A/D Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM
- HA0049E Read and Write Control of the HT1380
- HA0051E Li Battery Charger Demo Board - Using the HT46R47
- HA0052E Microcontroller Application - Battery Charger
- HA0083E Li Battery Charger Demo Board - Using the HT46R46
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· Max of 27 bidirectional I/O lines
· External interrupt input shared with I/O line
· Two 8-bit programmable Timer/Event Counters with
overflow interrupt
· Integrated crystal and RC oscillator
· Watchdog Timer
· 4096´15 program memory
· 192´8 data memory
· PFD for audio frequency generation
· _{Power down and wake-up functions to reduce power}
consumption
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· 6-level subroutine nesting
· 6 channel 9-bit resolution A/D converter
· Dual channel 8-bit PWM output shared with I/O lines
· Bit manipulation instruction
· Table read instructions
· 63 powerful instructions
· All instructions executed in one or two machine
cycles
· Low voltage reset function
· 28-pin SKDIP/SOP, 32-pin DIP, 44-QFP package
General Description
The HT46R4A is a device from the Cost-Effective A/D
Type Series of MCUs. As an 8-bit high performance
RISC architecture microcontroller, the device is de-
signed especially for applications that interface directly
to analog signals, such as those from sensors. The de-
vices include an integrated multi-channel Analog to Dig-
ital Converter in addition to two Pulse Width Modulation
outputs.
The usual Holtek MCU features such as power down
and wake-up functions, oscillator options, programma-
ble frequency divider, etc. combine to ensure user appli-
cations require a minimum of external components.
The benefits of integrated A/D and PWM functions, in
addition to low power consumption, high performance,
I/O flexibility and low-cost, provides the device with the
versatility to suit a wide range of application possibilities
such as sensor signal processing, motor driving, indus-
trial control, consumer products, subsystem controllers,
etc.
As is the case with all Holtek microcontroller devices,
the HT46R4A is fully supported by a full suite of
profesional hardware and software tools, containing
comprehensive features to ensure user applications are
designed and debugged in as short a time as possible.
Rev. 1.00
1
November 28, 2007