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ZXNet echo conference «hardware.zx»
From Alexandr Tkachev → To All 25 April 2002
Hello, All!
I have a couple more questions for you.
Question number 1:
Which ROM from the 556ртxx family has an 8-bit address bus and an 8-bit data bus capacity
not less than 256 bytes, are there any such things, if so, pinout would be desirable,
programming voltage level and which pin should it be applied to?
Question number 2:
Somehow someone wrote a letter about connecting a flash drive to the ZX and I found it
I have a flash N28F001 BX-T150 in a PLCC case, maybe someone knows the pinout and
what is the volume?
Alexandr.
From Eugene Palenock → To Alexandr Tkachev 28 April 2002
Hello, Alexandr!
25 Apr 02 23:16, Alexandr Tkachev -> All:
AT> Somehow someone wrote a letter about connecting a flash to ZX like this
AT> I found a flash N28F001 BX-T150 in a PLCC case here, maybe someone
AT> knows the pinout and what is the volume?
128kb.
but the BX-T is not the best chip for the Spectrum (unless you use it as a ROM, of course).
it's better to take a regular intel 28F010
and the pinout is the same for everyone
├─────────────────────── ────────────────────────┼
│ │
│ A12 A15 A16 Vpp Vcc -WE NC │
│ ┌──────────────────────────────────╖ │
│ ┌─┘ 4 3 2 1 32 31 30 ║ │
│ A7 │ 5 29 ║ A14 │
│ A6 │ 6 * 28 ║ A13 │
│ A5 │ 7 PLCC 27 ║ A8 │
│ A4 │ 8 26 ║ A9 │
│ A3 │ 9 28F010 25 ║ A11 │
│ A2 │ 10 24 ║ -OE │
│ A1 │ 11 128 KB 23 ║ A10 │
│ A0 │ 12 22 ║ -CE │
│ D0 │ 13 21 ║ D7 │
│ │ 14 15 16 17 18 19 20 ║ │
│ ╘════════════════════════════════════╝ │
│ D1 D2 GND D3 D4 D5 D6 │
│ │╘═══════════════════════════════════════════════╧