1

®

HD-6402

CMOS Universal Asynchronous

Receiver Transmitter (UART)

The HD-6402 is a CMOS UART for interfacing computers or

microprocessors to an asynchronous serial data channel.

The receiver converts serial start, data, parity and stop bits.

The transmitter converts parallel data into serial form and

automatically adds start, parity and stop bits. The data word

length can be 5, 6, 7 or 8 bits. Parity may be odd or even.

Parity checking and generation can be inhibited. The stop

bits may be one or two or one and one-half when

transmitting 5-bit code.

The HD-6402 can be used in a wide range of applications

including modems, printers, peripherals and remote data

acquisition systems. Utilizing the Intersil advanced scaled

SAJI IV CMOS process permits operation clock frequencies

up to 8.0MHz (500K Baud). Power requirements, by

comparison, are reduced from 300mW to 10mW. Status

logic increases flexibility and simplifies the user interface.

Pinout

HD-6402 (PDIP, CERDIP)

TOP VIEW

Features

• 8.0MHz Operating Frequency (5962-9052502)

• 2.0MHz Operating Frequency (HD3-6402R)

• Low Power CMOS Design

• Programmable Word Length, Stop Bits and Parity

• Automatic Data Formatting and Status Generation

• Compatible with Industry Standard UARTs

• Single +5V Power Supply

• CMOS/TTL Compatible Inputs

• Pb-Free Plus Anneal Available (RoHS Compliant)

13

1

2

3

4

5

6

7

8

9

10

11

12

14

15

16

17

18

19

20

NC

GND

RRD

RBR8

RBR7

RBR6

RBR5

RBR4

RBR3

RBR2

RBR1

PE

FE

OE

SFD

RRC

DRR

DR

RRI

28

40

39

38

37

36

35

34

33

32

31

30

29

27

26

25

24

23

22

21

TRC

EPE

CLS1

CLS2

SBS

PI

CRL

TBR8

TBR7

TBR6

TBR5

TBR4

TBR3

TBR2

TBR1

TRO

TRE

TBRL

TBRE

MR

Ordering Information

PACKAGE

TEMP

RANGE (°C)

2MHz = 125K

BAUD

8MHz = 500K

BAUD

PKG.

DWG.

#

PDIP

-40 to +85 HD3-6402R-9

E40.6

PDIP*

(Pb-free)

-40 to +85 HD3-6402R-9Z

(Note)

E40.6

CERDIP -

SMD#

-55 to +125

5962-

9052502MQA

F40.6

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

*Pb-free PDIPs can be used for through hole wave solder processing

only. They are not intended for use in Reflow solder processing

applications.

Data Sheet

FN2956.3

October 31, 2005

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2001, 2005. All Rights Reserved

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