Octal Line Driver
INPUTS OUTPUTS
EN DATA EIA-232E(3) EIA-232E/EIA-423A
0 0 (V+)-3V 5V to 6V
0 1 (V-)+3V -5V to -6V
1 X High Z High Z
Note 3: Minimum output swings .
CONNECTION DIAGRAMS
N PACKAGE (TOP VIEW)
Q PACKAGE (TOP VIEW)
V+ (Pin 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
V- (Pin 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15V
PLCC Power Dissipation , TA = 25°C ( Not e 2) . . . . . . . . . . . . . . . . . . 1000 mW
DIP Power Dissipat ion, TA = 25°C (Note 2) . . . . . . . . . . . . . . . . . . . . 1250 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to +7V
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12V to +12V
Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10kΩ
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Note 1: All voltages are with respec t to ground, pin 18.
Note 2: Consult Packaging section of Data book for thermal limitat ions and
consideration s of packa ge.
UC5171
The UC5171 is a single-ended octal line driver designed to meet both
standard modem control applications (EIA232E/V.28), and long line
drive applicati ons (EIA423A/V.10/X.26). The slew rate for all 8 drivers
is controlled by a single external resistor. The slew rat e and output lev els in Low Mode are independent of t he power variations.
Mode selection is accomplished by the select pin Ms logic “low” for low
output mode (EIA232E/V. 28 & EIA423A/V.10) or pin Ms logic “high” for
high mode (EIA232E/V.28). High mode should only be used to drive
adapters that take power from the control lines, or applications using
high threshold receivers.
• Eight Single-Ended Line Drivers in One
Package
• Digital Selection of High Mode
EIA232E/CCITT V.28 only, and Low
Mode EIA232E/V.28 & EIA423A/CCITT
V.10/X.26
• Single External Resistor Controls Slew
Rate
• Wide Supply Voltage Range
• Tri-State Outputs
• Output Short-Circuit Prot ect ion
• Low Power Consumption
• 2kV ESD Protection on all Pins
FEATURES
ABSOLUTE MAXI MUM RATING S (Not e 1)
FUNCTIONAL TABLE
7/95
DESCRIPTION
UC5171
AC ELECTRICAL CHARACTERIST ICS :
DC ELECTRICAL CHARACTERIST ICS :
PARAMETERS SYMBO L TEST CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY REQUIREMENTS
V+ Range 915V
V- Range -15 -9 V
V+ Supply Current I+ R
L = Infinite En = 0V 25 42 mA
V- Supply Current I- R
L = Infinite En = 0V -42 -23 mA
INPUTS
High Level Input Voltage V
IH 2.0 V
Low Level Input Voltage V
IL 0.8 V
Input Clamp Volta ge V
IK II = -15 mA -1.8 -1.1 V
High Level Input Current I
IH VIH = 2.4V 0.25 40 µA
Low Level Input Current I
IL VIL
= 0.4V -200 -8.0 µA
OUTPUTS
High Level V
OH VIN = 0.8V RL = Inf. 5. 0 5.3 6. 0 V
Output Voltage EIA232E
En = 0.8V RL = 3k 5.0 5.3 6.0 V
(EIA42 3A ) RL = 450 4.5 5.2 6.0 V
Low Level V
OL VIN = 2.0V RL = Inf. -6.0 -5.3 -5.0 V
Output Voltage EIA232E
En = 0.8V RL = 3k -6.0 -5.3 -5.0 V
(EIA423A) R
L = 450 -6.0 -5.2 -4.5 V
Output Balance (EIA423A) V
BAL RL = 450 VOH + V OL = VBAL 0.2 0.4 V
High Level V
OH VIN = 0.8V, MS = 2.0V RL = Inf. 7.0 7.6 10 V
Output Voltage ( EIA232E)
En = 0.8V RL = 3k 7.0 7.6 10 V
Low Level Output Volta ge V
OL VIN = 2.0V, MS = 2.0 V RL = Inf. -10 -7.7 -7. 0 V
(EIA232E) En = 0.8V RL = 3k -1 0 -7.7 -7. 0 V
Off-Stat e O utput Current I
OZ En = 2.0V, VO =
±±
6V, MS = 2.0V -100 100 µA
Short-Circuit Cur re nt I
OS En = 0V VIN = 0V 25 50 mA
V
IN = 5V 25 40 mA
PARAMETERS SYMBO L TEST CONDITIONS MIN TYP MAX UNITS
Output Slew Rate t
R RSRA = 2k 6.65 9 .5 12.3 V/µs
t
F RL = 450, CL = 50pF 6.65 10 12.3 V/µs
Output Slew Rate t
R RSRA = 10k 1.33 1 .9 2.45 V/µs
t
F RL = 450, CL = 50pF 1.33 2.2 2.45 V/µs
Propagation Output to t
Hz RSRA = 10k 0.3 1.0 µs
High Impedance t
Lz RL = 450, CL = 50pF 0.5 1.0 µs
Propagation High Impedance to t
zH RSRA = 10k 6.0 15 µs
Output t
zL RL = 450, CL = 50pF 7.0 15 µs
Unless otherwise stated these sp ecif icatio ns hold for | V+ | = | V - | = +10V,
0 < TA < +70°C, MS ≤ 0.8V, R SRA = +1 0k, TA =TJ.
at | V+ | = | V - | = +10V, 0 < T A < +70°C, MS ≤ 0.8V, TA =TJ.
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