Electronics, PCB Design and PCB Layout Daycounter, Inc.
Engineering Services

Custom Firmware, Electronics Design, and PCB Layout

                 
 
Electronics Design
Firmware Development
Software Development
Embedded Design
PCB Layout
Digital Signal Processing (DSP)
Reverse Engineering
Prototyping
Device Driver Development
VHDL
Motor Controllers
Microcontrollers
Data Acquisition Systems
Palm OS Software
Windows CE Software
Pocket PC Software
Design for Manufacturing
Through Hole to Surface Mount (SMT) Conversion 
Microchip PIC Consultant
MSP430 Development
DSP56 Development
RoHs Redesign
Design for USB



Silver Board Contract Assembly


 

Cheap Microcontrollers

Many applications, such as toys or low cost consumer electronics items, require the lowest cost microcontroller.  Tracking down the cheapest microcontroller can be a challenge, because of the multitude of manufacturers.  Small I/O limited microcontrollers can be expanded in I/O capability by interfacing them with a serial shift register, such as a 74HC595, which only costs $14 cents in moderate quantity.  Some chips can be bought as dies and then can be directly wire bound to a PCB with an epoxy covering. This further reduces costs, because the chip package can contribute up to near 50% of the cost.

Part Number Manufacturer Cost Qty 1000 Notes
MSP430F2101 TI $1.17 Very powerful 16 bit microcontroller, with low cost development tools, Comes in small 20 pin packages. Has an on board comparator which can be used to simulate an ADC, and a software UART. This is a great part!
PIC16F630 Microchip $1.26 Decent processor and easy to use tools. 14 pin packages
PIC16F676 Microchip $1.47 Similar to the PIC16F630, but with ADCs.
PIC10F200 Microchip $0.61 Very cheep, and very small with 8 pin SOIC and 6 pin SOT-23 packages.
AT89C2051 Atmel $1.05 20 pin package.
ATTiny11L Atmel $0.35 8 pin package, limited functionality but very cheep. Has low cost development tools.

Manufacturer Links

The best way to find electronic parts is to use our free Electronics Component Directory, where a myriad of electronics manufactures are listed.

Other Electronics Links

We offer a broad range of electrical engineering calculators and electronics articles and tutorials

Daycounter specializes in contract electronics design.  Do you need some help on your project?  Contact us to get a quote.

 






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