Summary of EPROM adapter for ATMEL 89 Series Flash Microcontroller Programmer Ver 2.0
This article outlines an EEPROM programmer supporting specific 28C and 29C series chips. It details hardware components like diodes, resistors, and jumpers required for isolating voltage and configuring pin compatibility between 24-pin and 28-pin devices. The software is available via a provided link, with a downloadable schematic PDF included for the EPROM adapter used with ATMEL 89 Series Flash Microcontrollers.
Parts used in the EEPROM Programmer:
- Diode D1
- Resistor R1
- Jumper J3
- 28C16 Device
- 28C256 Device
- 28C17 Device
- 29C256 Device
- 28C64 Device
Devices
The EEprom programmer software supports the following devices.
28C16 28C256 28C17 29C256 28C64
Hardware
Diode D1 and resistor R1 provide the VDD isolation when programming the 24 pin devices. The jumper J3 must be shorted for 24 pin devices, and open circuit for 28 pin device programming. Following EEPROMs are pin compatible with their EPROMs version,
28C16 —> 2716
28C64 —> 2764
29C256 —> 27256
The software for this adapter is located here: http://chaokhun.kmitl.ac.th/~kswichit/E2RomPgm_web/PgmE2w.zip
Schematic
Download above in pdf (198KB)
For more detail: EPROM adapter for ATMEL 89 Series Flash Microcontroller Programmer Ver 2.0
- How do I isolate VDD when programming 24 pin devices?
Diode D1 and resistor R1 provide the VDD isolation. - What is the state of jumper J3 for 24 pin devices?
The jumper J3 must be shorted for 24 pin devices. - What is the state of jumper J3 for 28 pin devices?
The jumper J3 must be open circuit for 28 pin device programming. - Which EPROM versions are pin compatible with the listed EEPROMs?
28C16 matches 2716, 28C64 matches 2764, and 29C256 matches 27256. - Where can I find the software for this adapter?
The software is located at http://chaokhun.kmitl.ac.th/~kswichit/E2RomPgm_web/PgmE2w.zip. - Can I download the schematic for this project?
Yes, you can download the schematic as a pdf file which is 198KB. - Does this adapter work with ATMEL 89 Series Flash Microcontrollers?
Yes, it is an EPROM adapter for the ATMEL 89 Series Flash Microcontroller Programmer Ver 2.0.
