HT46R72D-1 Datasheet, PDF (1/44 Pages) Holtek Semiconductor Inc – Dual Slope A/D Type MCU with LCD

HT46R72D-1
Dual Slope A/D Type MCU with LCD
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM
- HA0004E HT48 & HT46 MCU UART Software Implementation Method
- HA0005E Controlling the I2C bus with the HT48 & HT46 MCU Series
- HA0007E Using the MCU Look Up Table Instructions
- HA0049E Read and Write Control of the HT1380
- 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
· 12 bidirectional I/O lines and two ADC input
· One external interrupt input shard with an I/O lines
· One 8-bit and one 16-bit programmable timer/event
counter with overflow interrupt a 8-stage pre-scalar
· LCD driver with 16´4, 17´3 or 17´2 segments
· 2K´15 program memory with partial lock function
· 96´8 data memory RAM
· Single differential input channel dual slope Analog to
Digital Converter with Operational Amplifier.
· Watchdog Timer with regulator power
· _{Buzzer output}
· _{Internal 12kHz RC oscillator}
· On-chip RC or crystal oscillator
· HALT function and wake-up feature reduce power
consumption
· Voltage regulator (3.3V) and charge pump
· Embeded voltage reference generator (1.5V)
· 4-level subroutine nesting
· Bit manipulation instruction
· 14-bit table read instruction
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· _{Low voltage reset/detector function}
· _{52-pin QFP package}
General Description
The HT46R72D-1 is an 8-bit high performance, RISC
architecture microcontroller device specifically de-
signed for A/D with LCD applications that interface di-
rectly to analog signals, such as those from sensors.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, Dual slope A/D
converter, LCD display, HALT and wake-up functions,
watchdog timer, as well as low cost, enhance the versa-
tility of these devices to suit for a wide range of AD with
LCD application possibilities such as sensor signal pro-
cessing, scales, consumer products, subsystem con-
trollers, etc.
Rev. 1.20
1
August 22, 2007