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SILICON GATE
MOS
8702A
SWITCHING CHARACTERISTICS FOR PROGRAMMING OPERATION
PROGRAM
OPERATION
Conditions
of
Test:
Input
pulse rise and fall times :s
1J1sec
CS
=
OV
PROGRAM
WAVEFORMS
BINARY
ADDRESS
OF WORD TO
BE
PROGRAMMED
I
I I I
I
~tvoi
I
~
f--tATW
---.l
tACH
r--
I I I
tACW----.l',
I I
BINARY
COMPLEMENT OF
ADDRESS OF WORD
TO
BE
PROGRAMMED
o------------~
o
ADDRESS
-40
to
-48
-46
to-48
PULSED V
oo
POWER
SUPPLY
0------------""'"
PULSED V
GG
POWER
SUPPLY
-35
to-40
o--------------~
PROGRAMMING
PULSE
-46
to-48
o
DATA
INPUT
(DEVICE
OUTPUT
LINES)
--46
to
-48
I I
I I
1-
tATH-----"1
I
I
I I I
I I I
--'ltOHr-
I
DATA
STABLE
TIME
PROGRAMMING OPERATION OF THE 8702A
ADDRESS
When
the
Data I
nput
for
Then
the
Data
Output
WORD
A7
A6
AS
A4
A3
A2
A1
AO
the
Program
Mode
is:
during
the
Read Mode is:
0 0
0 0
0
0 0
0 0
V,L,P
=
""-48V
pulsed
Logic
1 =
VOH
='P'
on
tape
1
0
0 0
0
0 0
0 1
I
I
I
I
I
I I
I I
I I
I
I
I
I
I
I
I
VIHP;:
""
OV
Logic
0 =
VOL
='N'
on
tape
255
1
1
1 1
1
1
Address
Logic
Level
During
Read
Mode:
Logic 0 =
VIL
(""
.3V)
Logic 1
=
V,H
(
""
3V)
Address
Logic
Level
During
Program
Mode:
Logic 0 =VIL2P (
""
-40V)
Logic 1 =
V,
HP
(--
OV)
5-42