HT6571

Multiple RS-232 Drivers and Receivers

Block Diagram

Pin Assignment

Absolute Maximum Ratings

Supply Voltage (VSS VDD) ..........................

-15V~15V

Supply Voltage (GND VCC) .......................

-0.3V~5.5V

Input Voltage Driver .......................................... 0V~7V

Receiver ......................................................

-15V~15V

Output Voltage Driver ..................................

-15V~15V

Receiver ............................................................ 0V~7V

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those

listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-

ity.

Rev. 1.20

1

August 20, 2002

Features

serial port connector

requirements of EIA/TIA-232-D

General Description

The HT6571 is a CMOS device containing three RS-232

line drivers, and five RS-232 line receivers that are used

to interface data terminal equipment (DTE) with data cir-

cuit-terminating equipment (DCE).

R A 1

R A 2

R A 3

D Y 1

D Y 2

R A 4

D Y 3

R A 5

R Y 1

R Y 2

R Y 3

D A 1

D A 2

R Y 4

D A 3

R Y 5

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1

2

3

4

5

6

7

8

9

1 0

V D D

R A 1

R A 2

R A 3

D Y 1

D Y 2

R A 4

D Y 3

R A 5

V S S

V C C

R Y 1

R Y 2

R Y 3

D A 1

D A 2

R Y 4

D A 3

R Y 5

G N D

H T 6 5 7 1

2 0 S O P - A