SHAOS » electronics

PIC32 in DIP28

Shaos — Tue, 08 Nov 2011 01:31:16 +0000

I got one PIC32 in DIP

PIC32 in DIP28

It’s time to learn MIPS opcodes

TRIMUX: Free sample

Shaos — Tue, 06 Sep 2011 23:24:32 +0000

If you want to play with TRIMUX for free then just e-mail me request for a free sample (1 pcb per 1 person or address):

New TRIMUX PCBs

E-mail: ashabarshin at gmail dot com
Jabber: shaos at jabber dot org
Twitter: nedocon

TRIMUX: Simple applications

Shaos — Wed, 17 Aug 2011 05:25:25 +0000

TRIMUX may be used as memory element:

TRIMUX as ternary memory cell

or as buffer and inverter:

TRIMUX as buffer and inverter

To test TRIMUXes we may use 17-rows breadboards:

TRIMUX breadboard test

1K resistors may be removed for faster operations (1 MHz instead of max 200 kHz) – see screenshots from the oscilloscope:

TRIMUX speed test

TRIMUX: Ternary-Half Adder

Shaos — Fri, 22 Jul 2011 05:42:04 +0000

1st application of TRIMUX devices – ternary-half adder:

Ternary Half Adder

TRIMUX PCB for Sale

Shaos — Wed, 20 Jul 2011 05:10:08 +0000

Now you can buy TRIMUX PCB to create real ternary hardware (including ternary computer)!

TRIMUX PCB

It is dual ternary multiplexer board – $13 for each PCB (plus $10 handling and plus shipping):
http://batchpcb.com/index.php/Products/47438
Attention: BatchPCB has waiting time 3-4 weeks!
Design files can be downloaded from www.trimux.com
Components are available from Mouser
Discussion: http://www.ternary.info/modules/newbb/viewforum.php?forum=5

Handwritten blog 11

Shaos — Sun, 14 Nov 2010 08:09:04 +0000

Another page about building binary circuits with memory based on 74F00:

Ternary multiplexer (selector)

Shaos — Mon, 09 Aug 2010 02:36:34 +0000

My hardware design described earlier has been proven to be working:

DG403: two chips - no more components

Today two DG403s, four chip-capacitors 0.022 uF and 15-pin header were composed by me to the dual ternary multiplexer TRI41D:

1st test of TRI41D

TRI41D pins description:

 1.  S - select command (choose pins to connect)
 2. N1 - connected to C1 if S="N" (negative)
 3. O1 - connected to C1 if S="O" (ground)
 4. P1 - connected to C1 if S="P" (positive)
 5. C1 - connected to N1,O1,P1 based on voltage level on S
 6. N2 - connected to C2 if S="N" (negative)
 7. O2 - connected to C2 if S="O" (ground)
 8. P2 - connected to C2 if S="P" (positive)
 9. C2 - connected to N2,O2,P2 based on voltage level on S
10.-V - negative power
11.GND - ground
12.+V - positive power

TRI41D Test Results

P.S. Recently I designed PCB of double ternary multiplexer TRIMUX – see www.trimux.com

Handwritten blog 9,10

Shaos — Tue, 27 Jul 2010 05:00:15 +0000

Now I’m thinking about building binary circuits based on 74F00:

Handwritten blog 7,8

Shaos — Mon, 19 Jul 2010 00:32:37 +0000

Explanation of idea about ternary hardware based on DG403 switches and also attempt to apply the same approach to 4-value logic:

Ternary Hardware – CMOS switches

Shaos — Sat, 10 Jul 2010 23:47:47 +0000

DG403: one chip with resistors

Here I use undocumented feature of DG403 when normally closed switch opened by voltage lower than required to close another (normally opened) switch. Variable resistor is used to move that “both-opened” window to ternary “0″ zone (up from -3.0V…-0.8V to cover 0V).

DG403: two chips - no more components

Second scheme is more “correct” (nothing from undocumented features were used).

P.S. Ternary selector may be used as ternary inverter when RP=-5V, RO=0V, RN=+5V. See more details on www.ternary.info