Commodore 64 (and More) Memory Chip Tester - 4164/41256 DRAM
Item History & Price
| Reference Number: Avaluer:7186196 | UPC: Does not apply |
Tester for 4164/41256 DRAM chips (used in Commodore 64* and more)
*8x 4164 DRAM chips are used in the "breadbin" C64
This Arduino Nano-based tester runs four loops of the following memory verify tests:Fill with onesFill with zerosFill with alternating ones and zerosFill with alternating zeros and onesTest time, 4164: 40 secondsTest time, 41256: 1 minute, 45 secondsDuo color status LED:
Green - Init & passed all tests
Yellow/orange - tests running
Red (blinking) t...est failedOvercurrent/short circuit protection (Polymer PTC self-resettable fuse and output resistors)Serial monitor output (9600 bauds)One pre-programmed Arduino Nano (socketed) and one 30 cm/12 inch micro-USB cable included. DRAM chip in pictures is NOT included.Note! 4164 chips detected as working/defective has been verified in real C64. 41256 test mode is BETA as I haven't had the opportunity to test chips from multiple manufacturers. Tests are not 100% accurate (timing wise) and should be seen as an good indication.
Drivers for the CH340 chipset is needed for serial communication. I'll send you the link after purchase.- - -4164 DRAM cross reference:MB8264-15 (Fairchild)
MB8264A-15 (Fujitsu)
HM4864, HYB4164P2BD (Hitachi)
M3764A-15 (OKI)
MT4264-25 (Micron)
M5K4164AP-15, M5K4164 ANP-10 (Mitsubishi)
MK4564N-20 (Mostek)
MCM4164BP15, MCM6665BP20, MCM6665AP (Motorola)
D4164C-2, D4164C-15, uPD 4164-1 (NEC)
KM4164B-15 (Samsung)
TMM4164 C-3, TMS4164-15NL, TMS4164-20NL (Toshiba)
41256 DRAM cross reference:TMS4256 (Toshiba)
MCM6256 (Motorola)
HM51256 (Hitachi)
MB81256 (Fujitsu)
HYB41256 (Siemens)
KM41256 (Samsung)
MSM41256 (OKI)
uPD41256 (NEC)
*8x 4164 DRAM chips are used in the "breadbin" C64
This Arduino Nano-based tester runs four loops of the following memory verify tests:Fill with onesFill with zerosFill with alternating ones and zerosFill with alternating zeros and onesTest time, 4164: 40 secondsTest time, 41256: 1 minute, 45 secondsDuo color status LED:
Green - Init & passed all tests
Yellow/orange - tests running
Red (blinking) t...est failedOvercurrent/short circuit protection (Polymer PTC self-resettable fuse and output resistors)Serial monitor output (9600 bauds)One pre-programmed Arduino Nano (socketed) and one 30 cm/12 inch micro-USB cable included. DRAM chip in pictures is NOT included.Note! 4164 chips detected as working/defective has been verified in real C64. 41256 test mode is BETA as I haven't had the opportunity to test chips from multiple manufacturers. Tests are not 100% accurate (timing wise) and should be seen as an good indication.
Drivers for the CH340 chipset is needed for serial communication. I'll send you the link after purchase.- - -4164 DRAM cross reference:MB8264-15 (Fairchild)
MB8264A-15 (Fujitsu)
HM4864, HYB4164P2BD (Hitachi)
M3764A-15 (OKI)
MT4264-25 (Micron)
M5K4164AP-15, M5K4164 ANP-10 (Mitsubishi)
MK4564N-20 (Mostek)
MCM4164BP15, MCM6665BP20, MCM6665AP (Motorola)
D4164C-2, D4164C-15, uPD 4164-1 (NEC)
KM4164B-15 (Samsung)
TMM4164 C-3, TMS4164-15NL, TMS4164-20NL (Toshiba)
41256 DRAM cross reference:TMS4256 (Toshiba)
MCM6256 (Motorola)
HM51256 (Hitachi)
MB81256 (Fujitsu)
HYB41256 (Siemens)
KM41256 (Samsung)
MSM41256 (OKI)
uPD41256 (NEC)
