General Description
This OTP-Based 8-bit micro-controller uses a fully static CMOS technology process to achieve higher speed and smaller size with the low power consumption and high noise immunity. On
chip memory includes 3K words of EPROM, and 128bytes of static RAM.

Features
*RISC CPU
*Fully static design
*37 single word instructions
*3K × 14 program memory
*128 bytes RAM for data
*23 bi-directional I/O
*Eight level hardware stacks
*Watchdog timer (WDT) with on-chip RC oscillator
*Power-On Reset (POR) ,only availabl while PED is Disable
*Power Edge-detector Reset (PED)
*Interrupt capability
*Timer0:8-bit timer with 8-bit prescaler (RTCC)
*Timer1:16bit timer with 16bit compare register. This timer can be used as carrier generator.
*4 Channel comparator
*Sleep mode for power saving.
*PB with port change wake- up interrupt

Applications
The application areas of this NEW MCU
range from appliance motor control and high
speed automotive to low power remote
transmitters/receivers and
telecommunications processors, such as
Remote controller, small instruments, toy ,
automobile and keyboard…etc.  

MDT10P622 - OTP-Based 8-bit micro-controller

General Description
MDT7820 is a voltage detector which can generate a low level signal whenever the input voltage (supply voltage) falls below threshold voltage level (2.0v).

Features
*Low detectable voltage 2.0V
*Low power consumption
*Built-in hysteresis characteristic

Applications
*Battery detectors
*Power checkers
*Micro-controller reset

MDT7820ST
MDT7820ST23  

MDT7820 - Voltage Detector

General Description
 This EPROM-Based 8-bit micro-controller uses a fully static CMOS design technology combines higher speeds and smaller size with the low power and high noise immunity.
On chip memory system includes 0.5 K word s of ROM, and 32 bytes of static RAM.

Features
The followings are some of the features on the hardware and software :
* Fully CMOS static design
* 8 -bit data bus
* On chip ROM size : 512 words
* Internal RAM size : 32 bytes (25 general purpose registers, 7 special registers)
* 36 single word instructions
* 14-bit instructions
* 2 -level stacks
* Operating voltage : 2.3V ~ 5.5 V
* Operating frequency : 0 ~ 20 MHz
* The most fast execution time is 200 ns under 20 MHz in all single cycle instructions except the branch instructions
* Addre ssing modes include direct, indirect and relative addressing modes
* Power-on Reset
* Power edge-detector Reset
* Sleep Mode for power saving
* 8 -bit real time clock/counter(RTCC) with 8 -bit programmable prescaler
* 4 types of oscillator can be selected by rogramming option (Internal Capacitor about 10p):
- RC－Low cost RC oscillator
- LFXT－Low frequency crystal oscillator
- XTAL－Standard crystal oscillator
- HFXT－High frequency crystal oscillator
* 4 oscillator start-up time can be selected by programming option:
- 150 us, 20 ms, 40 ms, 80 ms
* On-chip RC oscillator based Watchdog Timer(WDT) can be operated freely
* 12 I/O pins with their own independent direction control

Applications
The application areas of this MDT10P05 range from appliance motor control and high speed automotive to low power remote transmitters/receivers, pointing devices, and telecommunications processors, such as Remote controller, small instruments, chargers, toy, automobile and PC peripheral … etc.  

MDT10P05 - 8 bit micro controller