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+5 V
+15 V
-15 V
Vcc
25 max
30 max
30 max
0
22 max
30 max
30 max
70
21 max
30 max
30 max
180
SPECIFICATIONS FOR BUS-8559 HYBRID
WITH BUS-25679 TRANSFORMER
PARAMETER
POWER SUPPLIES
REQUIREMENTS
RECEIVER SECTION
Input Level
Input Impedance
Threshold Level
Output Levels
Outputs:
V
OL
V
OH
I
OL
I
OH
TRANSMITTER SECTION
Input Levels
Inputs:
V
ih
V
il
I
ih
I
il
Output Level
Rise/Fall Time
Output Noise
Variable Vcc
TEMPERATURE
RANGE
Operating (Case temp.)
Storage
-55°C to +125°C
-55°C to +135°C
40 V pk-pk differential max
4 k
Ω differential min
1 V pk-pk nominal, internally set
(direct mode)
TTL, 10 LS loads
0.6 V max
2.5 V min
4 mA max
-400 µA max
PHYSICAL
CHARACTERISTICS
Size (24-pin DDIP hybrid)
Weight
VALUE
P.S.
VOLTS
STDBY
mA
25%
mA
100%
mA
1.4 x 0.8 x 0.2 inches
(36 x 20 x 5 mm).
0.4 oz
(11 g)
NOTE: This unit will also operate with ±12 V P.S.
TTL, 2 LS loads
2 V min
0.8 V max
80 µA max
-3.2 mA
0-27 V pk-pk nominal across 145
Ω load
0-20 V pk-pk nominal
(measured at output of BUS-25679
XFMR output - XFMR coupled stub)
130 nsec typ
10 mV pk-pk differential max
0 to +15 V DC
BOTTOM VIEW
.020 ± .002
(0.5 ± 0.1)
1
2
3
8
7
6
5
4
.200 ± .005
(5.1 ± 0.1)
.63
MAX
SIDE VIEW
.500 ± .005
(13 ± 0.1)
.63 MAX
(16.0)
.275 MAX
(7.0)
.250 MIN
(6.3)
TERMINAL
IDENTIFICATION
THIS SIDE
NOTES:
1. All dimensions are in inches (millimeters).
2. Pin callouts on bottom view are for reference only.
0.750 MAX
(19.05)
0.600±0.002
(15.2 ±0.05)
1.390 MAX
(33.02)
12 EQ.SP.
0.100=1.100
TOL. NONCUM
(2.5=27.9)
0.150 MAX
(3.81)
0.250 MIN
(6.35)
0.100
(2.54)
0.020 0.51 DIA PIN
0.016 0.41 24 PLACES
BOTTOM VIEW
SIDE VIEW
0.095
(2.41)
124
13
12
BUS-25679 TRANSFORMER OUTLINE
BUS-8559 MECHANICAL OUTLINE
BUS-8559 PIN FUNCTION TABLE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PIN
FUNCTION
TX Data Out
TX Data Out
Gnd
N.C.
N.C.
Variable Vcc
RX Data Out
Strobe
GND
RX Data Out
N.C.
N.C.
+15V DC
N.C.
RX Data In
RX Data In
N.C.
GND
-15V DC
+5V DC
TX Inhibit
TX Data In
TX Data In
N.C.
FUNCTION
PIN
2