line driver. LM75123 Datasheet

LM75123 driver. Datasheet pdf. Equivalent


Part LM75123
Description dual line driver
Feature Line 0 rivers/Receivers LM75123 dual line driver general description The LM75123 is a monolithic du.
Manufacture National Semiconductor
Datasheet
Download LM75123 Datasheet


Line 0 rivers/Receivers LM75123 dual line driver general de LM75123 Datasheet
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LM75123
Line 0 rivers/Receivers
LM75123 dual line driver
general description
The LM75123 is a monolithic dual line driver
designed specifically to meet the I/O interface
specifications for IBM System 360. It is com-
patible with standard TIL logic and supply voltage
levels.
The low-impedance emitter-follower outputs of
the LM75123 enable driving terminated low im-
pedance lines. In addition the outputs are un-
commited allowing two or more drivers to drive
the same line.
Output short-circuit protection is incorporated
to tum off the output when, the output voltage
drops below approximately 1.5V.
features
• Meet IBM System 360 I/O interface specifica-
tions for digital data transmission over 500 to
500n coaxial cable, strip line, or terminated
pair transmission lines
• TIL compatible with single 5.0V supply
• 3.11V output at IOH = -59.3 mA
• Open emitter-follower output structure for
party-line operation
• Short circuit protection
• AND-OR logic configuration
• Plug-in replacement for the SN75123 and the
8T23
.rs.:.-:.
~
N
W
connection diagram
Dual-In-Line Package
Vee 2F 2E 2D 2C 28 2> 2V
16 1. 14
1. 18 lC lD IE IF tV GND
TOP VIEW
typical performance
characteristics
Output Current VI Output Volt_
-300
;( -250
oS
.~ -2DD
§
u -150
..!;
S -100
.sI -50
f--
Vee· 5,~V
VIH "'2.0V
TA "'25°C
,I
'\
\
o 051 D 1,5 2.0253,03.54,04550
Vo - OUTPUT VOLTAGE IV)
Order Number LM75123J
Sao Package 17
Order Number LM75123N
Sao Package 23
truth table
INPUTS
ABC0 EF
OUTPUT
V
HHHHX X
H
X XX XHH
H
All Other Input Comblnatlon~
L
H
=high
level,
L
=low
--
level,
X
=
irrelevant
ac test circuit' and switching time waveforms
3J1V
>--+-....- .....-0 OUTPUT
C,
(NOTE 8J
~50ns
3 QV ---'I-Jr=-=i
INPUT
VOH ---+r----,.
OUTPUT
NOTE A. THE PULSE GENERATORS HAVE THI;: FOLLOWING CHARACTERISTICS louT"" 5On.
tv. = 200 lIS, DUTY CYCLE = 6p%
NOTE B CL INCLUDES PROBE AND JIG CAPACITANCE
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LM75123
absolute maximum ratings
(Notes 1 and 2)
Supply Voltage, VCC
7.0V
Input Voltage
5.5V
Output Voltage
7.0V
Continuous Total Power Dissipation at (or
below) 25~C Free-Air Temperature (Note 5) 800 mW
Operating Free-Air Temperature Range etc to +75·C
Storage Temperature Range
-65·C to +150·C
Lead Temperature (Solden ng, 10 seconds)
300·C
operating conditions
MIN MAX
Supply Voltage, VCC
High Level Output Current,
IOH
Temperature, TA
4.75
0
5.25
-100
+75
UNITS
V
mA
·C
electrical characteristics (Note 3)
PARAMETER
High Level Input Voltage (V,H )
Low Level Input Voltage (V,d
Input Clamp Voltage (V,)
Input Breakdown Voltage (V(BR) 1)
High Level Output Voltage (VOH )
High Level Output Current (lOH)
Low Level Output Voltage (Vod
Off State Output Current (10 OFF)
High Level Input Current (I,H)
Low Level Input Current (l,d
Short CirCUIt Output Current (los)
Supply Current, Outputs High (lceH)
Supply Current, Outputs Low (Iced
CONDITIONS
MIN
2.0
Vee = 5.0V, 1,=-12mA
Vee = 5.0V, I, = 10mA
Vee = 5.0V, V,H = 2.0V,
10H = -59.3 mA, (Note 4)
TA = 25·C
TA =O°C to +75°C
Vee = 5.0V, VIH = 4.5V, TA = 25'C, (Note 4)
VOH = 2.0V
V,L = 0.8V, 10L = -240I'A, (Note 4)
Vee = 0, Vo =3.0V
V, =4.5V
V, =0.4V
Vee =5.0V, TA =25'C
Vee =5.25V, All Inputs at 2.0V, Outputs Open
Vee =5.25V, All Inputs atO.8V, Outputs Open
5.5
3.11
2.9
-100
-{)1
TYP MAX UNITS
V
0.8 V
-1.5 V
V
-250
0.15
40
40
-1.6
-30
28
60
V
V
mA
V
I'A
!lA
mA
mA
mA
mA
switching characteristics Vee = 5.0V, TA = 25°C
PARAMETER
Propagation Delay Time, Low to High
Level Output (tPLH)
Propagation Delay Time, High to Low
Level Output (tPH d
Propagation Delay Time, Low to HIgh
Level Output (tPLH)
Propagation Oelay Time, Hlt'tl to Low
level Output (tPHd
CONDITIONS
RL =50n,CL = 15pF
(See AC Test CirCUit and SWitching
TIme Waveforms)
RL =50n, CL =100 pF
(See AC Test Circuit and SWitching
Time Waveforms)
MIN TYP MAX UNITS
12 20
ns
12 20
ns
20 35
ns
15 25
ns
Note 1: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. Except
for "Operating Temperature Range" they are not meant to imply that the devices should be operated at these limits. The
table of "Electrical Characteristics" provides conditions for actual device operation.
Note 2: All currents into device pins are shown as positive, currents out of device pins shown as negative, all voltage values are
referenced with respect to network ground terminal, unless otherwise noted. All values shown as max or min on absolute
value basis.
Note 3: Minimax limits apply across the guaranteed operating temperature range of O'C to +75'C for LM75123, unless
otherwise specified. Typicals are for VCC = 5.0V, TA = 25·C. POSItive current IS defined as current into the referenced pin.
Note 4: The output voltage and current limits Bre guaranteed for any appropriate combination of high and low inputs
specified by the truth table for the desired output.
Note 5: For operating at elevated temperatures, the cavity DIP package (J) hes a maximum junction temperature of +lSetC
and must be derated based on a thermal resistance of +85·C/W, junction to ambient. The molded DIP package (N) hes a maxi-
mum junction temperature of +150°C and must be derated based on a thermal resistance of +150'C/W, junction to ambient.
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