Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Suggest a Microcontroller

Status
Not open for further replies.

ITP

Advanced Member level 4
Joined
Jul 11, 2001
Messages
116
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
1,134
68hc8 processor

Hi all,

I need a low cost, low speed 8bit microcontroller with analog comparaor and DAC builtin for a low cost application. Can anybody suggest a uC.


Thanks in advance
Itp
 

cdcll

Full Member level 3
Joined
Feb 15, 2002
Messages
163
Helped
8
Reputation
16
Reaction score
1
Trophy points
1,298
Activity points
1,199
Some MCS51 MCU has analog comparaor & PWM( DAC can be easily implemented with PWM).
 

vkchau

Member level 4
Joined
Jun 7, 2003
Messages
74
Helped
4
Reputation
8
Reaction score
2
Trophy points
1,288
Activity points
664
MCS51, 80C51, is a good selection for controlling. However, as I know, MCUs do not have built-in DAC.
 

gorkin

Advanced Member level 1
Joined
Feb 27, 2002
Messages
422
Helped
13
Reputation
26
Reaction score
5
Trophy points
1,298
Location
brazil
Activity points
3,377
Low Cost Microcontroller

Hi brother!
If interested for microcontroller with some features, see more about 68HC8 family specialy:
MC68HC908QY4
This is a Low Power 8bit microcontroler with various peripherals modules and ease programming and good development tool(Code Warrior by Metrowerks)...
gorkin
:D
 

maranaza

Member level 2
Joined
Mar 27, 2002
Messages
49
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
351
ITP,

Check the Microchip's PIC16C781/782. May be it suits your needs.

maranaza
 

tjalps

Full Member level 5
Joined
May 28, 2001
Messages
240
Helped
6
Reputation
12
Reaction score
3
Trophy points
1,298
Location
SLOVENIA
Activity points
1,994
Maybe PIC12FXX family flash, A/D ...

Regards!
 

C-Man

Advanced Member level 4
Joined
Jul 19, 2001
Messages
1,059
Helped
90
Reputation
180
Reaction score
17
Trophy points
1,318
Activity points
10,189
A very cheap solution is Microchip 16F628 (4 Comperators, PWM ...)

best regards
 

cancel

Full Member level 5
Joined
May 27, 2001
Messages
251
Helped
15
Reputation
30
Reaction score
4
Trophy points
1,298
Activity points
1,878
dac

afaik only mcu which has built in dac is analog ADuC8xx

regards

cancel
 

eltonjohn

Advanced Member level 4
Joined
Feb 22, 2002
Messages
1,435
Helped
64
Reputation
126
Reaction score
28
Trophy points
1,328
Activity points
16,326
What ..................MY WORD!

WHAT ???....................

NOBODY HAS SUGGESTED THE TI MPS430FXXX familiy

CHEAP PRICE !
EXTREMLY LOW POWER!
JTAG DONWLOAD-DEBUGGING CAPABILITY
(SCHEMATICH FREE TO BUILD THE CABLE)

FREE C COMPILER & ASSAMBLER !
(DOWNLOADABLE FROM TI SITE)

FLASH ... YOU CAN ERASE & REPROGRAM ALL WHAT YOU WANT


THE CHEAPEST CPU IN THE WORLD

$ .50 CENTS for the SMALLEST ONE

SEVERAL PACKAGES AVALAIBLES !

WHAT MORE DO YOU WANT?
 

jimbies

Member level 2
Joined
Jul 22, 2002
Messages
44
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
245
Another will be the Motorola 68HC908QY4. Follow this likk for more
information -
**broken link removed**
 

tjalps

Full Member level 5
Joined
May 28, 2001
Messages
240
Helped
6
Reputation
12
Reaction score
3
Trophy points
1,298
Location
SLOVENIA
Activity points
1,994
Hello EltonJohn!

Wich part exacly you can get for 0.50$ and in what quantity?

Regards!
 

maranaza

Member level 2
Joined
Mar 27, 2002
Messages
49
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
351
PIC16C781/782 have 2 analog comparators and 8-bit DAC.

maranaza
 

_i386sx25_

Member level 3
Joined
Jun 2, 2002
Messages
61
Helped
9
Reputation
18
Reaction score
3
Trophy points
1,288
Activity points
340
You can use a PWM output(s) of microcontrollers as DAC. Of course it won't be rail to rail but for relatively simple applications thats enough. All you need a resistor , a capacitor and a transistor (as buffer).

If you have volume and need sub 1€ controller you can take a look at NEC 9104 , ST 324 , Motorola Nitron and Microchip PIC16F?? . All have ADC PWM. Some of them flash some of them mask ...
 

psubiaco

Member level 2
Joined
Apr 6, 2003
Messages
42
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Location
Italy
Activity points
610
Holtek www.holtek.com make some microcontrolles with ADC and very nice PWM (8 bit PWM used as 6+2 to improve switching frequency achieving better filtering solution).
You can look at the HT46R47 , 18pin, 2K rom, 4 analog input at 9bit resolution, 2 PWM 6+2 bit, and very low cost (0.70 EUR).
Regards. Paolo
 

kittihua

Junior Member level 1
Joined
Sep 1, 2003
Messages
18
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
116
Microchip MCU in PIC16
 

ayeong

Full Member level 1
Joined
Dec 31, 1999
Messages
96
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
904
I have attached some microprocessor report. Basically, they are separated between 8,16 & 32 bits processor.

Pretty informative. Do take a look.

Thanks
 

katos

Junior Member level 3
Joined
May 6, 2003
Messages
25
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
282
The MSP 430 family is a really good choice.

Katos.
 

electro

Junior Member level 3
Joined
Apr 12, 2001
Messages
27
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Turkey
Activity points
173
Hi,
I have just started using MSP430 with IAR C Compiler.

In my opinion, no words to MCU but for IAR, it is an awful compiler.

CCS for PIC has so many ready routines, so you do not have to learn all the internal registers.

IAR for MSP does not include any routines. So you have to deeply study all the registers and initialize them without making a "bit" mistake.

It takes a long period to start developing code quickly in IAR. (i.e. Until you supply all your initialization functions)

I think IAR C Compiler is a "C synthaxed assembler".

I wonder which compiler does other guys use to develop code in MSP.

Best regards,
 

crazyduck

Full Member level 4
Joined
Sep 3, 2001
Messages
214
Helped
13
Reputation
26
Reaction score
6
Trophy points
1,298
Location
France
Activity points
2,007
Hello,
The POC16F629 and 630 are fine for this use. These device include internal oscillator. You can use the PicKIt1 to program and to devellop it.
For the PiCkit1, search on the forum.

CD:)
 

huahua

Member level 2
Joined
Sep 21, 2002
Messages
42
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
258
Cygnal C8051F302 maybe the one you want.

Internal Osc.
Comparator
ADC and DAC
Flash Memory
Free IDE software
Price $1.77

**broken link removed**
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top