Electronics

European Shops

Logic SIM

https://github.com/SebLague/Digital-Logic-Sim

XR2206

https://www.youtube.com/watch?v=mfiRJ1qgToc

https://www.digipart.com/part/XR2206

100uF capacitor blew up, exploded. Because

power supply was AC (pay attention!)
other supply rated 12Vdc, but output 17Vdc without load
replace 100uF U1 capacitor
use 9Vdc on regulated powersupply, with barrel jack.

555 Timer

https://www.electronics-tutorials.ws/waveforms/555_timer.html

RS485

SN75176

120Ohm between A and B

0.1uF between VCC-GND

7 Segment Display

CC Common-Cathode

0.36 inch 3-digit 7-segment display

Xlitx HSN-3631AS

http://www.xlitx.com/datasheet/3631AS.pdf

http://www.lanpade.com/7-segment-led-dot-matrix/3631as.html

3dig 7seg display

Pinout Diagram

D1  A  F D2 D3  B
12 11 10  9  8  7

 1  2  3  4  5  6
 E  D DP  C  G NC

Digits

  A
F   B
  G
E   C
  D   DP

Bitmapping

      dp  a  b  c  d  e  f  g
 bit:  7  6  5  4  3  2  1  0

1: 0b01100000 = 0x60
2: 0b01101101 = 0x6D
char num[] = {0x7e,0x60,0x6d,0x78,0x33,0x5b,0x5f,0x70,0x7f,0x7b};

MAX7219

https://www.analog.com/media/en/technical-documentation/data-sheets/max7219-max7221.pdf

10 microfarad capacitor between 5v and gnd
10K on pin 18 on max7219

https://www.friendlywire.com/tutorials/max7219/

opamps

opamps philips ua741cn

EEPROM Programmers

http://www.xgecu.com/

xgecu is haiko xingong electronic

T48 Programmer is the TL866 Third Generation, T56 and T76 are successors (WinUSB device A466:0A53)

XGPRO programmer V12.90

https://www.mediafire.com/file/03meg9ozvmsr2sm/XgproV1290_Setup.rar/file

Minipro

https://www.eevblog.com/forum/blog/eevblog-411-minipro-tl866-universal-programmer-review/2000/

https://forums-xgecu-com.translate.goog/viewthread.php?tid=170&extra=page%3D1&_x_tr_sch=http&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp

https://gitlab.com/DavidGriffith/minipro

EEPROM

MX27C512 compatible

ATMEL AT28C256 (the 2 I ordered)

The MX26C512A (the one I blew up) is erased by EPROM programmer or in-system. The device is set up in erase mode when A9 =OE/VPP = 12.75V are applied, with VCC = 5V. (Algorithm is shown in Figure 3). The erase time is around 1sec. If the erase is not verified, an additional erase processes will be repeated for a maximum of 200 times.


MODE	!CE	!OE/VPP	A0	A9	OUTPUTS
Erase	VIL	VPP 12.75V	X	VPP 12.75V	HIGH Z
Erase Verify	VIL	VPP 12.75V	X	X	DOUT

VCC = 5V

OE/VPP = 12.5V is applied with VCC = 6.25V

25~100us pulse to the CE input

     <ic
         name="MX27C512@DIP28"
         type="1"
         protocol_id="0x07"
         variant="0x10"
         read_buffer_size="0x1000"
         write_buffer_size="0x80"
         code_memory_size="0x10000"
         data_memory_size="0x00"
         data_memory2_size="0x00"
         page_size="0x0000"
         pages_per_block="0x0000"
         chip_id="0x0000c2d1"
         voltages="0x5070"
         pulse_delay="0x0064"
         flags="0x00000068"
         chip_info="0x0006"
         pin_map="0x0016"
         package_details="0x1c000000"
         config="NULL"
     />

https://www.youtube.com/watch?v=cPROJgbFuKw

fuel consumption minus 20 percent.bin

M95320

fast programming mode