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PDF MDT2051 Data sheet ( Hoja de datos )
| Número de pieza | MDT2051 | |
| Descripción | Microcontroller | |
| Fabricantes | Micon Design Technology | |
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MDT2051
1. General Description
This EPROM-Based 8-bit micro-controller uses a fully
static CMOS technology process to achieve higher
speed and smaller size with the low power
consump-tion and high noise immunity. On chip
memory incl-udes 1K words of ROM, and 68 bytes of
static RAM.
2. Features
The followings are some of the features on the
hardware and software :
u Fully CMOS static design
u 8-bit data bus
u On chip EPROM size : 1.0 K words
u Internal RAM size : 84 bytes
(68 general purpose registers, 16 special
registers)
u 37 single word instructions
u 14-bit instructions
u 8-level stacks
u Operating voltage : 2.5 V ~ 5.5 V (PRD Disable)
4.5 V ~ 5.5 V (PRD Enable)
u Operating frequency : DC ~ 20 MHz
u The most fast execution time is 200 ns under
20 MHz in all single cycle instructions except
the branch instruction
u Addressing modes include direct, indirect and
relative addressing modes
u Power-on Reset
u Power edge-detector Reset
u Power range-detector Reset
u Sleep Mode for power saving
u Four interrupt sources:
-External INT pin
-TMR0 timer
-A/D conversion completion
-PortB<7:4> interrupt on change
u A/D converter module:
-Four analog inputs multiplexed into one A/D
converter
-8-bit resolution
u 4 types of oscillator can be selected by
programming option:
RC Low cost RC oscillator
LFXT Low frequency crystal oscillator
XTAL Standard crystal oscillator
HFXT High frequency crystal oscillator
u 8-bit real time clock/counter(RTCC) with 8-bit
programmable prescaler
u On-chip RC oscillator based Watchdog
Timer(WDT)
u 13 I/O pins with their own independent
direction control
3. Applications
The application areas of this MDT2051 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.
4. Pin Assignment
PA2/AIC2 1
PA3/AIC3 2
PA4/RTCC 3
/MCLR 4
Vss 5
PB0/INT 6
PB1 7
PB2 8
PB3 9
18 PA1/AIC1
17 PA0/AIC0
16 OSC1
15 OSC2
14 Vdd
13 PB7
12 PB6
11 PB5
10 PB4
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 1
2004/1 Ver. 1.8
1 page  
(11) INTS ( Interrupt Status Register ) : R0B
MDT2051
Bit Symbol
Function
0 RBIF PORT B change interrupt flag. Set when PB <7:4> inputs change
1 INTF Set when INT interrupt occurs. INT interrupt flag.
2 TIF Set when TMR overflows.
3 RBIE 0 : disable PB change interrupt
1 : enable PB change interrupt
4 INTS 0 : disable INT interrupt
1 : enable INT interrupt
5 TIS 0 : disable TMR interrupt
1 : enable TMR interrupt
6 ADIS 0 : disable A/D interrupt
1 : enable A/D interrupt
7 GIS 0 : disable global interrupt
1 : enable global interrupt
(12) TMR (Time Mode Register) : R81
Bit
20
3
4
5
6
7
Symbol
PS2 0
PSC
TCE
TCS
IES
PBPH
Function
Prescaler Value
RTCC rate
WDT rate
000
001
1:2
1:4
1:1
1:2
010
1:8
1:4
011
1 : 16
1:8
100
1 : 32
1 : 16
101
110
1 : 64
1 : 128
1 : 32
1 : 64
111
1 : 256
1 : 128
Prescaler assignment bit :
0 RTCC
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
Interrupt edge select
0 Interrupt on falling edge on PB0
1 Interrupt on rising edge on PB0
PORTB pull-hi
0 PORTB pull-hi are enable
1 PORTB pull-hi are disable
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 5
2004/1 Ver. 1.8
5 Page 
C R Freq.
4.7k 5.8M
10k 2.9M
47k 660K
20p
100k
318K
300k
105K
470k
66K
4.7k 1.75M
10k 880K
100p
47k
100k
190K
92K
300k
31K
470k
19K
4.7k 800K
10k 380K
300p
47k
100k
83K
39K
300k
13K
470k
8K
These parameters are for reference only.
Sleep WDT-disable
Current
PRD-disable
900u
1u
500u
1u
180u
1u
120u
1u
90u 1u
85u 1u
320u
1u
200u
1u
110u
1u
95u 1u
90u 1u
85u 1u
180u
1u
130u
1u
100u
1u
95u 1u
90u 1u
85u 1u
(4) LF (C=10p) , WDT - disable, PRD - disable,
32K 455K
2.5V
3.0V
5u
6u
35u
40u
4.0V
5.0V
12u
30u
65u
100u
6.4V
130u
165u
These parameters are for reference only.
1M
50u
70u
110u
150u
250u
Sleep
1u
1u
1u
1u
1u
MDT2051
This specification are subject to be changed without notice. Any latest information please preview
http;//www.mdtic.com.tw
P. 11
2004/1 Ver. 1.8
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet MDT2051.PDF ] | |
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