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28 pin eprom programmer
28 pin eprom programmer








  1. 28 PIN EPROM PROGRAMMER SERIAL
  2. 28 PIN EPROM PROGRAMMER SOFTWARE

So the Nano can be removed and used for other projects. The Nano is stacked on a 600mil DIP socket, that I cut down to 30 pins. Here is a picture of the prototype with the Nano V3, 2 74HC595 and a ZIF socket for the EEPROM. But unfortunately I need pin 0 and 1 for RX/TX, making it a little bit harder to set 8 data bits for the EEPROM. The only internal PORT of the Atmeg328 on the Nano that can be completely used with 8 data bits is PORTD (digital Pins 0 to 7). But the address lines are only needed as output, so I decided to use 2 74HC595 shift registers to reduce the needed I/O pins from 15 to 3.

28 PIN EPROM PROGRAMMER SERIAL

The whole thing is based on an Arduino Nano, because of the small form factor, the good price and (very important) and already available serial connection via USB.įor 15 address lines, 8 data lines and 3 control lines I need 26 I/O pins, too much for the Nano. You can buy a programmer, but they are too expensive for just a simple project.

28 pin eprom programmer

Additionally some control lines like /WRITE, /OUTPUT and /ENABLE need to be connected to the EEPROMs. These chips are parallel memory chips with a 13 to 15 bit wide address bus and a 8 bit databus. The back of circuit board is covered by a sheet of perspex and completely protected from a short circuit.For my upcoming 6502 CPU based homebrew computer project I need the possibility to program EPROMs and EEPROMs. Note: Higher Vcc voltages (5.6v and 6.2v) will be available when an external AC power supply is used.Uses the power supply from a USB port or from an optional power supply or plug pack (not supplied).PIC + adapter, 16 bit 40pin/42pin Adapter, PLCC32, PLCC44

28 pin eprom programmer

  • Can be expanded by adding various adapters (Optional).
  • 28 PIN EPROM PROGRAMMER SOFTWARE

  • Updated software Willem EPEOM PCB50a(0.98D12)© only support The newest Willem EPROM PProgrammer PCB50B©.
  • Supports Win9X, Me, XP, NT, 2000 and VISTA operating systems.
  • The back of circuit board is covered by a sheet of perspex and completely protected from a short circuit.
  • Able unprotect the AM29F040B flash memory chip.
  • Uses the power supply from the USB Port or AC/DC adaptor power.
  • Willem EPROM PProgrammer PCB50© and PCB4.5C can support the chip 29/39/49LVxxx (Low Voltage 3.3V).
  • - Test nonvolatile SRAM, static RAM, ATMELand etc.
  • - FLASH Burner (Vpp 12.5V, 21V, 25V), Serial Peripheral Interface (SPI).
  • - EPROM, EEPROM, Serial (I2C) EEPROM, Microwire EEPROM, Microchip PIC.
  • 28 pin eprom programmer

    It can program up to 20% - 50% faster than old version of Willem EPROM Programmer have Built-in PLCC32 and PLCC Firmware HUB/LPC on-board

  • The newest Willem EPROM PProgrammer PCB50B©.
  • You are buying directly from the manufacturer.
  • 28 pin eprom programmer

  • Updated Newest Software Willem EPEOM PCB50a(0.98D12)© support the SPI FLASH chips (AMIC, ATMEL, EON, MXIC, Numonyx (ST), P-FLASH, SPANSION, SST, WINBOND, GigaDevice, MicroChip ) more than the all version and improved the models of algorithms focusing on SST 25 series.
  • * SPI flash chips are found on new motherboards, DVD burners, hard drives etc.
  • This new hardware version (PCB50) is is more STABLE than all old PCB version and increase supports 3V3-3V6 SPI Flash devices.









  • 28 pin eprom programmer