Intersil Corporation HD-6402-883 Datasheet

March 1997

HD-6402/883

CMOS Universal Asynchronous

Receiver Transmitter (UART)

Features

• This Circuit is Processed in Accordance to MIL-STD­883 and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.

• 8.0MHz Operating Frequency (HD-6402/883B)

• 2.0MHz Operating Frequency (HD-6402/883R)

• Low Power CMOS Design

• Programmable Word Length, Stop Bits and Parity

• Automatic Data Formatting and Status Generation

Description

The HD-6402/883 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-6402/883 can be used in a wide range of applica­tions including modems, printers, peripherals and remote

• Compatible with Industry Standard UARTs

• Single +5V Power Supply

• CMOS/TTL Compatible Inputs

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.

Ordering Information

PACKAGE TEMPERATURE RANGE 2MHz = 125K BAUD 8MHz = 500K BAUD PKG. NO.

CERDIP -55oC to +125oC HD1-6402R/883 HD1-6402B/883 F40.6

Pinout

HD-6402/883 (CERDIP)

TOP VIEW

VCC

NC
GND
RRD

RBR8
RBR7
RBR6
RBR5
RBR4
RBR3
RBR2
RBR1

PE
FE

OE

SFD
RRC
DRR

DR

RRI

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20

40

TRC

39

EPE

38

CLS1

37

CLS2

36

SBS

35

PI

34

CRL

33

TBR8

32

TBR7

31

TBR6

30

TBR5

29

TBR4

28

TBR3

27

TBR2

26

TBR1

25

TRO

24

TRE
TBRL

23

TBRE

22

MR

21

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207

| Copyright © Intersil Corporation 1999

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File Number 2953.1

HD-6402/883

Control Definition

CONTROL WORD CHARACTER FORMAT

CLS 2 CLS 1 PI EPE SBS START BIT DATA BITS PARITY BIT STOP BITS

0000015ODD1
0000115ODD1.5
0 0 0 1 0 1 5 EVEN 1
0 0 0 1 1 1 5 EVEN 1.5
0 0 1 X 0 1 5 NONE 1
0 0 1 X 1 1 5 NONE 1.5
0100016ODD1
0100116ODD2
0 1 0 1 0 1 6 EVEN 1
0 1 0 1 1 1 6 EVEN 2
0 1 1 X 0 1 6 NONE 1
0 1 1 x 1 1 6 NONE 2
1000017ODD1
1000117ODD2
1 0 0 1 0 1 7 EVEN 1
1 0 0 1 1 1 7 EVEN 2
1 0 1 X 0 1 7 NONE 1
1 0 1 x 1 1 7 NONE 2
1100018ODD1
1100118ODD2
1 1 0 1 0 1 8 EVEN 1
1 1 0 1 1 1 8 EVEN 2
1 1 1 X 0 1 8 NONE 1
1 1 1 x 1 1 8 NONE 2

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