HT46R14A Datasheet, PDF (1/49 Pages) Holtek Semiconductor Inc – A/D Type 8-Bit OTP MCU

HT46R14A
A/D Type 8-Bit OTP MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0004E HT48 & HT46 MCU UART Software Implementation Method
- HA0005E Controlling the I^2C bus with the HT48 & HT46 MCU Series
- HA0011E HT48 & HT46 Keyboard Scan Program
- HA0013E HT48 & HT46 LCM Interface Design
- HA0075E MCU Reset and Oscillator Circuits Application Note
- HA0102E Using the HT46R14A in a CCFL Lamp Inverter
Features
· Operating voltage:
f_SYS= 4MHz: 2.2V~5.5V
f_SYS= 8MHz: 3.3V~5.5V
· 21 bidirectional I/O lines
· Three interrupt input shared with an I/O line
· Two 8-bit programmable timer/event counters with
overflow interrupt and 7-stage prescaler
· Two 8-bit programmable pulse generator - PPG
output channel with prescaler and 8-bit
programmable timer counter, supporting both active
low or active high output
· Two comparator
· 4096´15 program memory
· _{192´8 data memory RAM}
· _{Integrated crystal and RC oscillator}
· _{Watchdog Timer}
· PFD for audio generation
· Power-down and wake-up functions for reduced
power consumption
· Up to 0.5ms instruction cycle with 8MHz system
clock at V_DD= 5V
· 8-level subroutine nesting
· 8 channel 9-bit resolution A/D converter
· Two comparators with interrupt function
· Bit manipulation instruction
· 15-bit table read instruction
· 63 powerful instructions
· Instructions executed in one or two machine cycles
· _{Low voltage reset function}
· _{28-pin SKDIP/SOP packages}
General Description
The HT46R14A is an 8-bit, high performance, RISC ar-
chitecture microcontroller devices specifically designed
for A/D applications that interface directly to analog sig-
nals, such as those from sensors.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, multi-channel A/D Converter, HALT
and wake-up functions, provide the device with the ver-
satility to meet the requirements of wide range of A/D
application possibilities such as external analog sensor
signal processing.
With the inclusion of two comparators and a fully inte-
grated programmable pulse generator, the device is par-
ticularly suitable for use in products such as induction
cookers and other home appliance application areas.
Rev. 1.00
1
August 3, 2007