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PDF MDT2020B Data sheet ( Hoja de datos )

Número de pieza MDT2020B
Descripción EPROM-Based 8-bit micro-controller
Fabricantes Micon Design Technology　
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No Preview Available ! MDT2020B Hoja de datos, Descripción, Manual

MDT2020B
MDT2020B Spec.
Ver 2.2
1. General Description
This EPROM-Based 8-bit micro-controller uses a fully static CMOS design technology
combines higher speed and smaller size with the low power and high noise immunity of
CMOS.
On chip memory system includes 2.0 K bytes of ROM, and 80 bytes of static RAM.
2. Features
The followings are some of the features on the hardware and software :
! Fully COMS static design
! 8-bit data bus
! On chip ROM size : 2 K words
! Internal RAM size : 80 bytes
(72 general purpose, 8 special registers)
! 36 single word instructions
! 14-bit instructions
! 2-level stacks
! Operating voltage : 2.3 V ~ 6.3 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 instruction.
! Addressing modes include direct, indirect and relative addressing modes
! Power-on Reset
! Power Edge-detector Reset
! Sleep mode for power saving
! 4 oscillator start-up time :
150 µs, 20 ms, 40 ms, 80 ms
! 8-bit real time clock/counter(RTCC) with 8-bit programmable prescaler
! 4 types of oscillator can be selected by code options :
RCLow cost RC oscillator
LFXTLow frequency crystal oscillator
XTALStandard crystal oscillator
HFXTHigh frequency crystal oscillator
! On-chip RC oscillator based Watchdog Timer(WDT) can be operated freely
! 20 I/O pins with their own independent direction control


1 page




MDT2020B pdf
MDT2020B Spec.
Ver 2.2
Bit
20
3
4
5
Symbol
PS20
PSC
TCE
TCS
Function
Prescaler Value
RTCC rate
WDT rate
000
1:2
1:1
001
1:4
1:2
010
1:8
1:4
011
1 : 16
1:8
100
1 : 32
1 : 16
101
1 : 64
1 : 32
110
1 : 128
1 : 64
111
1 : 256
Prescaler assignment bit :
0  RTCC
1 : 128
1  Watchdog Timer
RTCC signal Edge :
0  Increment on low-to-high transition on RTCC pin
1  Increment on high-to-low transition on RTCC pin
RTCC signal set :
0  Internal instruction cycle clock
1  Transition on RTCC pin
(10) CPIO A, CPIO B, CPIO C (Control Port I/O Mode Register)
The CPIO register is “write-only”
“0”, I/O pin in output mode;
“1”, I/O pin in input mode.
(11) EPROM Option by Writer Programming:
Oscillator Type
RC Oscillator
HFXT Oscillator
XTAL Oscillator
LFXT Oscillator
Oscillator Start-up Time
150 µs,20ms,40ms,80ms
20 ms,40ms,80ms
20ms,40 ms,80ms
80 ms
Watchdog Timer control
Watchdog timer disable all the time
Watchdog timer enable all the time


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MDT2020B arduino
       
MDT2020B Spec.
Ver 2.2
Voltage/Frequency
2.3 V
3.0 V
4.0 V
5.0 V
6.4 V
32 K
455 K
1M
3.5 µA @2.5V 78 µA @2.6V 132 µA
69.0 µA 115.0 µA 168.0 µA
123.0µA 190.0 µA 260.0 µA
195.0 µA 280.0 µA 370.0 µA
305.0 µA 425.0 µA 555.0 µA
Sleep
1 µA
1 µA
1 µA
5 µA
10 µA
(iii) OSC TypeXT (C=10 p); WDTEnable
Voltage/Frequency
2.1 V
3.0 V
4.0 V
5.0 V
6.4 V
1M
98.0 µA
205.0 µA
350.0 µA
538.0 µA
890.0 µA
4M
300.0 µA
520.0 µA
790.0 µA
1.1 mA
1.65 mA
10 M
@2.3V779µA
1.20 mA
1.60 mA
2.20 mA
3.10 mA
Sleep
1.0 µA
4.0 µA
8.0 µA
15.0 µA
30.0 µA
(iv) OSC TypeHF (C=10 p); WDTEnable
Voltage/Frequency
2.1 V
3.0 V
4.0 V
5.0 V
6.4 V
4M
318.0 µA
540.0 µA
815.0 µA
1.2 mA
1.8 mA
10 M
20 M
Sleep
695 µA @2.2V 1.47mA 1.0 µA
1.15 mA
2.10 mA
4.0 µA
1.70 mA
3.00 mA
8.0 µA
2.30 mA
4.00 mA 15.0 µA
3.30 mA
5.60 mA 30.0 µA
(G) Power Edge-detector Reset Voltage (Not in Sleep Mode), @ Vdd5.0 V
Vpr 1.45 V
Vpr Vdd (Power Supply)


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