鈥?/div>
Eight Single-Ended Line Drivers in One
Package
Meets Standards EIA232E/CCITT V.28,
and EIA423A/CCITT V.10/X.26
Single External Resistor Controls Slew
Rate
Wide Supply Voltage Range
Tri-State Outputs
Output Short-Circuit Protection
Low Power Consumption
2kV ESD Protection on all Pins
EOS on all Output Pins 35V under all
Output Conditions
High Current Output for Long Line
Drive, Exceeds Standards
DESCRIPTION
The UC5172 is a single-ended octal line driver designed to meet both
standard modem control applications (EIA232E/V.28), and long line
drive applications (EIA423A/V.10/X.26). The slew rate for all 8 drivers
is controlled by a single external resistor. The slew rate and output lev-
els are independent of the power variations.
The UC5172 has high output current, and current balance for long line
drive applications. EOS - Output parasitic SCRs powered on and off
are 35V, well above signal levels, allowing protection devices to work.
Inputs are compatible TTL+MOS logic families and are diode protected
against negative transients.
FUNCTIONAL TABLE
INPUTS
EN
0
0
1
Note 2: Minimum output swings.
DATA
0
1
X
OUTPUT
EIA232E/EIA423A
5V to 6V
-5V to -6V
High Z
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V+ (Pin 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
V- (Pin 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15V
PLCC Power Dissipation, T
A
=25擄C (Note 3) . . . . . . . . . . . . . . . . . . . 1000 mW
DIP Power Dissipation, T
A
=25擄C (Note 3) . . . . . . . . . . . . . . . . . . . . . 1250 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to +7V
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6V to +6V
Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10k鈩?/div>
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65擄C to +150擄C
Note 1: All voltages are with respect to ground, pin 18.
Note 3: Consult Packaging section of Databook for thermal limitations and
considerations of package.
CONNECTION DIAGRAMS
N PACKAGE (TOP VIEW)
Q PACKAGE (TOP VIEW)
9/96
1
2
3
4
5
