MAX563CWN+T Maxim Integrated Products, MAX563CWN+T Datasheet

IC TXRX RS232 DUAL 3.3V 18-SOIC

MAX563CWN+T

Manufacturer Part Number
MAX563CWN+T
Description
IC TXRX RS232 DUAL 3.3V 18-SOIC
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.MAX563CWN.pdf (8 pages)

Specifications of MAX563CWN+T

Number Of Drivers/receivers
2/2
Protocol
RS562
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX563 is a +3.3V-powered EIA/TIA-562 transceiver
with two transmitters and two receivers. Because it imple-
ments the EIA/TIA-562 standard, the MAX563 communi-
cates with RS-232 transceivers, yet consumes far less
power; this makes it ideal for battery-powered, hand-held
computers. And, the MAX563 guarantees a 116kbps data
rate while maintaining ±3.7V EIA/TIA-562 signal levels,
which makes it compatible with LapLink™ software.
An on-board charge pump converts the +3.3V supply to
the ±6.6V needed to produce the EIA/TIA-562 output volt-
age levels. Four 0.1µF charge-pump capacitors and a
bypass capacitor of similar size are the only external com-
ponents required.
When the MAX563’s charge pumps and transmitters are
shut down to save power, the receivers remain active to
continuously monitor signals from external devices (for
example, ring indicator from modems). The two receivers’
outputs can be enabled and disabled independently of the
shutdown function to allow two ports—generally of different
types—to be wire-OR connected at the UART.
________________________Applications
19-0198; Rev 0; 10/93
™ LapLink is a registered trademark of Traveling Software, Inc.
Call toll free 1-800-998-8800 for free samples or literature.
__________Typical Operating Circuit
_______________General Description
OUTPUTS
INPUTS
CMOS
CMOS
+3.3V-Powered, EIA/TIA-562 Dual Transceiver
Handiterminals
Battery-Powered Equipment
Bar-Code Readers
Notebook and Palmtop Computers
C1
C2
12
11
10
13
4
6
1
2
5
C2+
C2-
T1
T2
R1
C1+
C1-
R2
EN
________________________________________________________________ Maxim Integrated Products
IN
IN
OUT
OUT
400k
400k
VOLTAGE DOUBLER
VOLTAGE INVERTER
V
V
+3.3V
GND
CC
CC
V CC
17
5k
5k
with Receivers Active in Shutdown
C3
T2
T1
SHDN
R2
R1
OUT
OUT
V+
V-
IN
IN
ALL CAPACITORS 0.1µF
14
9
18
3
15
7
8
+6.6V
-6.6V
ON/OFF
C4
RS-562
OUTPUTS
RS-562/RS-232
INPUTS
____________________________Features
* Dice are specified at T
MAX563CPN
MAX563CWN
MAX563C/D
__________________Pin Configuration
______________Ordering Information
Guaranteed Interoperability with RS-232
Operates from a Single +3.0V to +3.6V Supply
2 Drivers, 2 Receivers
Receivers Active in Shutdown Mode
Low-Power Shutdown: 10µA Max
Small Package—18-Pin Wide SO
Three-State TTL/CMOS Receiver Outputs
116kbps Guaranteed Data Rate
PART
TOP VIEW
T2
R2
C1+
C2+
OUT
C1-
C2-
EN
V+
V-
IN
1
2
3
4
5
6
7
8
9
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
A
= +25°C.
DIP/SO
MAX563
18
17
16
15
14
13
12
11
10
PIN-PACKAGE
18 Plastic DIP
18 Wide SO
Dice *
T1
T2
SHDN
V
GND
T1
R1
R1
R2
CC
OUT
IN
IN
IN
OUT
OUT
1

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MAX563CWN+T Summary of contents

Page 1

... OUT 5k SHDN 1 EN GND ™ LapLink is a registered trademark of Traveling Software, Inc. ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. ____________________________Features Guaranteed Interoperability with RS-232 Operates from a Single +3.0V to +3.6V Supply 2 Drivers, 2 Receivers Receivers Active in Shutdown Mode Low-Power Shutdown: 10µ ...

Page 2

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown ABSOLUTE MAXIMUM RATINGS Power Supply Ranges Supply Voltage (V ) ...........................................-0.3V to +6V CC Input Voltages T .........................................................-0. ...............................................................................±25V IN T (Note 1)...................................................................±15V OUT Output Voltages T ...

Page 3

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown ELECTRICAL CHARACTERISTICS (continued 3.0V to 3.6V, C1-C4 = 0.1µ PARAMETER SYMBOL POWER SUPPLY Operating Supply Voltage V V Supply Current I CC Shutdown Supply Current I SHDN ...

Page 4

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown ______________________________________________________________Pin Description PIN NAME C1 C1- 5 C2 OUT OUT ...

Page 5

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown I SHDN +3.6V 0.1µF V C1+ CC 0.1µF C1- MAX563 C2 0.1µF C2- 400k T1 & +3.6V R1 & OUT 0V +3.6V EN DRIVE ...

Page 6

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown EN INPUT 0.6V CC RECEIVER +0.4V OUTPUT C = 150pF INPUT 0.1V OH RECEIVER OUTPUTS R ...

Page 7

EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown Table 1. Summary of EIA/TIA-232E/V.28 and EIA/TIA-562 Specifications PARAMETER Driver Output Voltage 0 Level 1 Level Maximum Output Level Signal Rate (3kΩ ≤ R ≤ 7kΩ) L Receiver Input Thresholds 0 ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1993 Maxim Integrated Products ...

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