HT46R73D-3 Datasheet, PDF (1/54 Pages) Holtek Semiconductor Inc – Dual Slope A/D Type 8-Bit OTP MCU with LCD

HT46R73D-3
Dual Slope A/D Type 8-Bit OTP MCU with LCD
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· Three system oscillators:
External Crystal oscillator
External RC oscillator
Internal RC oscillator
· Up to 16 bidirectional I/O lines
· One external interrupt input shard with an I/O lines
· One 8-bit and two 16-bit programmable timer/event
counter with overflow interrupt a 8-stage pre-scalar
· LCD driver with 16´4 segments
· 4K´15 program memory
· 128´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
· External 32.768kHz 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
· 15-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 function
· One vibration sensor input
· Four touch-key inputs
· 52-pin QFP package
General Description
The HT46R73D-3 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. 1.10
1
April 19, 2010