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270S/
2716 PROGRAMMER &
4K/
SK EPROM BOAR D
':ATURES:
SYSTEM COMPATIBILITY
S-100 bus computer
systems.
EPROM PROGRAMMER
2 separate programming
sockets for
2708
or
2716
(5V)
EPROMs.
Meets al I
manufacturers data
sheet
requirements for programming.
Programming voltage
generated
on board--no
need for
an
external
power supply.
Programming
sockets
are DIP switch addressable
to
any 4K boundary.
Software control of
2708/2716 programming selection--no
hardware reconfiguration required.
Provisions for 2 optional ZIP
sockets from
Textool for
easier
insertion and removal of
EPROMs being programmed.
Special
safety features to prevent accidental programming
include LED indicator for
programming mode and
an
on-off
switch for programming
voltage.
ON-BOARD EPROMS
4 separate sockets for
4K
of 2708 or 8K of 2716
EPROMs.
Addressable by DIP
switch to any
4K
or 8K boundary above 8000
Hex.
Unused EPROM
sockets do
not
e
nable
data bus drive
so
the
board
is never committed to the
full 4K or
8K of
memory.
Jumper selectable
wait states (0 to
4)
for fast or
s
low
EPROMs.
SOFHJARE
Complete
subroutines for checking EPROM
erasure,
programming and
ve
rification.
A dress and
data
lin
es
fully buffered.
Solder
masked
PC
board
with gold
plated
edge
connector contacts.
Low
profile sockets provided for all
ICs.
Power requirements:
+8v
@
500ma, +16v
@
25ma (l
ess
EPROM),
-16V
@
Sma
(less EPROM).
We used to be Solid State Music
.
We still make the blue
boards.
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