22 Jul
2004
22 Jul
'04
5:40 a.m.
On Jul 22, 13:09, wolfgang(a)eichberger.org wrote:
2732 2532
EPROM -> SOCKET
Pin(s) Pin(s)
1-17 -> 1-17
18 (E) -> 20 (PD/PGM)
19(A10)-> 19 (A10)
20(GVpp)> 21 (Vpp)
21(A11)-> 18 (A11)
22-24 -> 22-24
That should certainly work for reading.
--
Pete Peter Turnbull
Network Manager
University of York
22 Jul
22 Jul
8:17 a.m.
In message <10407221840.ZM22794(a)mindy.dunnington.u-net.com>
Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
On Jul 22, 13:09, wolfgang(a)eichberger.org wrote:
Not if those pin names are correct. !G is Output Gate, i.e. !OE. I'd connect
all the pins straight through, except 18, 20 and 21.
2532 socket 2732 ROM
18 A11 21 A11
21 VPP no-connect
20 !E (PD/PGM) 18 !E
14 Vss 14 and 20 (Vss and !G respectively)
Anything else is connected straight through
I *think* that'll work. The only difference is that this grounds the 2732's
!G (Output Enable) pin instead of rigging it high (Vpp is usually connected
to +5V for EPROMs that are wired for reading only).
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem(a)dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice,
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... A pound of puppies; a college of cardinals; a bowl of weevils
2732 2532
EPROM -> SOCKET
Pin(s) Pin(s)
1-17 -> 1-17
18 (E) -> 20 (PD/PGM)
19(A10)-> 19 (A10)
20(GVpp)> 21 (Vpp)
21(A11)-> 18 (A11)
22-24 -> 22-24
That should certainly work for reading.
7239
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7239
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philpem＠dsl.pipex.com