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

°C (Note 2) . . . . . . . . . . . . . . . . . . 1000 mW

°C (Note 2) . . . . . . . . . . . . . . . . . . . . 1250 mW

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5V to +7V

Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12V to +12V

Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10k

Ω

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65

°C to +150°C

Note 1: All voltages are with respect to ground, pin 18.

Note 2: Consult Packaging section of Databook for thermal limitations and

considerations of package.

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 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 in Low Mode are independent of the 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 Protection

•

Low Power Consumption

•

2kV ESD Protection on all Pins

FEATURES

ABSOLUTE MAXIMUM RATINGS (Note 1)

FUNCTIONAL TABLE

7/95

DESCRIPTION