HT46R71D-1
HT46R71D-1 is Dual Slope A/D Type MCU manufactured by Holtek Semiconductor.
Features
- Operating voltage:
- RC oscillator
- HALT function and wake-up feature reduce power f SYS=4MHz: 2.2V~5.5V
- 10 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 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 1ms instruction cycle with 4MHz system clock
- 63 powerful instructions
- All instructions in 1 or 2 machine cycles
- Low voltage reset/detector function
- 48-pin SSOP package counter with overflow interrupt a 7-stage pre-scalar
- LCD driver with 10´3 segments
- 2K´14 program memory with partial lock function
- 32´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 12k Hz RC oscillator
General Description
The HT46R71D-1 is an 8-bit high performance, RISC architecture microcontroller device specifically designed for A/D with LCD applications that interface directly to analog signals, such as those from sensors. The advantages of low power consumption, I/O flexibility, 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 versatility of these devices to suit for a wide range of AD with LCD application possibilities such as sensor signal processing, scales, consumer products, subsystem controllers, etc.
Rev. 1.00
May 14, 2007
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Block Diagram
In te rru p t C ir c u it P ro g ra m R O M P ro g ra m C o u n te r S T A C K IN T C T M R 0 C T M R 0 M U X M U X f S
P r e s c a le r P A 4 /T M R 0
In t. R C
In s tr u c tio n R e g is te r
T M R 1 C T M R 1 M P M U X D a ta M e m o ry W D T P r e s c a le...
