IBM 1 Series Manual page 70

Type and
element
A-A
driver
A-A
receiver
(conditioned)
A-B, A-C
driver
A-B, A-C
receiver
(conditioned)
Parameter
High-level
output
Low-level
output
High-level
input
Low-level
input-
conditioned
inactive
Low-level
input-
conditioned
active
High-level
output
Low-level
output
High-level
input
Low-level
input-
conditioned
inactive
Low-level
input-
conditioned
active
Test
condition
(volts)
at node
2.4
0.45 (Note 1)
2.4
0.2 (Note 2)
0.4 (Note 3)
0
2.4
0.45 (Note 1)
2.4
0.2 (Note 2)
0.4 (Note 3)
0
General unit
load-
current (mA)
min max
+0.110
+20
+0.04
—0.1
—0.75
—0.93
+0.110
+16
+0.04
—0.2
—0.75
—0.93
Figure 2-26 (Part 1 of 2). Unit-load driver/receiver specifications
TTL unit
load-
current (mA)
max
+0.250
min
+20
+0.04
—0.2
—1.6
+0.250
+16
+0.04
—1.6
Processor I/O Channel
2-59