DS8921, DS8921A, DS8921AT

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SNLS374D – MAY 1998 – REVISED JANUARY 2015

5 Pin Configuration and Functions

D, P Package

8 Pins

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

DIFFERENTIAL SIGNALING I/O

DI

3

I

TTL/CMOS Compatible Driver Input

DO+, DO–

6, 5

O

Inverting and non-inverting differential driver outputs

RI+, RI–

8, 7

I

Inverting and non-inverting differential receiver inputs

RO

2

O

Receiver Output Pin

POWER

GND

4

Power

Ground Pin

VCC

1

Power

Supply pin, provide 5-V supply

6 Specifications

6.1 Absolute Maximum Ratings

(1) (2)

MIN

MAX

UNIT

Supply Voltage

7

V

Driver Input Voltage

−0.5

7

V

Output Voltage

5.5

V

Receiver Output Sink Current

50

mA

Receiver Input Voltage

–10

10

V

Differential Input Voltage

–12

12

V

Maximum Package Power Dissipation at 25°C: D Package

730

mW

Maximum Package Power Dissipation at 25°C: P Package

1160

mW

Derate D Package, above 25°C

9.3

mW/°C

Derate P Package, above 25°C

5.8

mW/°C

Lead Temperature

260

°C

(Soldering, 4 sec.)

260

°C

Maximum Junction Temperature

150

°C

−65

165

°C

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instrument Sales Office/ Distributors for availability and

specifications.

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