IBM Series 1 User Manual page 230

c
(;
c
TNL: GN34-0368 to GA34-0033-0 (February 4, 1977)
need not be conditioned
if
the receiver always
satisfies the conditioned inactive unit load current
for a test condition of from
0
to 0.45 volts. See
"Receiver
Conditioning"
sUbsection that
follows for
further explanation
of
conditioning.
*3. The general unit
load
current may be computed at any
other test condition voltage
by
linear extrapolation
using the
two
points given.
Voltag~ ~yg12 ~Q ~witchi~g
Characteri§!l£§. The driver
voltage levels
given
are the minimum and maximum output
levels for the driver circuits as seen at the module output
pins.
The receiver switching levels given are as seen at the
module
pins and
include
de noise tolerance.
Driver voltage levels
r
I I NON-
11EVEL~_lSCHOTTKY
I
MPUL
1
5.50V
I
LPUL
1
2.40V
I
MPDL
I
0.45V
I
LPDL )
o.
0 V
L
,
, J
l§CHQTTKY_l
I s.SV ,
I
2.4V
I
I
0.6V
I
I
o.ov
I
.J
Receivec switching
characteristics
r ,
I I I
1_~1---1_1Ng~_1
I
MPOL
I
s.sv
I
I
LP U L
I
2.0 V
I
I
MPDL
1
0.8V
J
I
LPDL
I
o.ov
I
L
Capacitive Loading. Any single data or tag line on one drop
on the channel shall not be loaded with more than 30 pF. In
the case where a TTL load has been substituted for a general
unit load, the line capacitance may not exceed 60 pF. The
socket adapter must be estimated at 10 pF for application
purposes.
Processor 1/0 Channel 2-69