MAX563C/D

MAX563C/D Datasheet

MAX563

Part	Datasheet
MAX563C/D	MAX563C/D (pdf)

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MAX563 +3.3V-Powered, EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown The MAX563 is a +3.3V-powered EIA/TIA-562 transceiver with two transmitters and two receivers. Because it implements the EIA/TIA-562 standard, the MAX563 communicates 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 voltage levels. Four 0.1µF charge-pump capacitors and a bypass capacitor of similar size are the only external components 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 of different be wire-OR connected at the UART. Handiterminals Battery-Powered Equipment Bar-Code Readers Notebook and Palmtop Computers Operating Circuit C1 C2 CMOS INPUTS CMOS OUTPUTS +3.3V C3 ALL CAPACITORS 0.1µF 2 C1+ +6.6V 4 C1- VOLTAGE DOUBLER 5 C2+ VOLTAGE INVERTER -6.6V C4 400k VCC 12 T1IN 400k VCC 11 T2IN T1OUT 15 T2OUT 8 RS-562 OUTPUTS 13 R1OUT 10 R2OUT 1 EN R1IN 14 5k R2IN 9 5k SHDN 18 GND RS-562/RS-232 INPUTS ON/OFF o Guaranteed Interoperability with RS-232 o Operates from a Single +3.0V to +3.6V Supply o 2 Drivers, 2 Receivers o Receivers Active in Shutdown Mode o Low-Power Shutdown 10µA Max o Small Wide SO o Three-State TTL/CMOS Receiver Outputs o 116kbps Guaranteed Data Rate Ordering Information PART MAX563CPN MAX563CWN MAX563C/D TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C * Dice are specified at TA = +25°C. PIN-PACKAGE 18 Plastic DIP 18 Wide SO Dice * Configuration TOP VIEW EN 1 C1+ 2 V+ 3 C1- 4 C2+ 5 C2- 6 V- 7 T2OUT 8 R2IN 9 MAX563 18 SHDN 17 VCC 16 GND 15 T1OUT 14 R1IN 13 R1OUT 12 T1IN 11 T2IN 10 R2OUT DIP/SO LapLink is a registered trademark of Traveling Software, Inc. Maxim Integrated Products 1 Call toll free 1-800-998-8800 for free samples or literature. MAX563 +3.3V-Powered, EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown ABSOLUTE MAXIMUM RATINGS Power Supply Ranges Supply Voltage VCC to +6V Input Voltages to VCC -0.3V RIN TOUT Note Output Voltages to VCC +0.3V Driver/Receiver Output Short Circuit to GND.........Continuous Continuous Power Dissipation TA = +70°C Plastic DIP Wide SO Operating Temperature Range...............................0°C to +70°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature soldering, 10sec .............................+300°C Note 1 Input voltage measured with TOUT in high-impedance state. SHDN or VCC = 0V. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VCC = 3.0V to 3.6V, C1-C4 = 0.1µF, TA = TMIN to TMAX, unless otherwise noted. PARAMETER RS-562 TRANSMITTERS Output Voltage Swing Data Rate Input Logic Threshold Low Input Logic Threshold High Logic Pull-Up/Input Current VIL VIH Output Leakage Current Transmitter Output Resistance Output Short-Circuit Current RS-232/RS-562 RECEIVERS Input Voltage Operating Range Input Threshold Low Input Threshold High Input Hysteresis

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MAX563
+3.3V-Powered, EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown

The MAX563 is a +3.3V-powered EIA/TIA-562 transceiver with two transmitters and two receivers. Because it implements the EIA/TIA-562 standard, the MAX563 communicates 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 voltage levels. Four 0.1µF charge-pump capacitors and a bypass capacitor of similar size are the only external components 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 of different be wire-OR connected at the UART.

Handiterminals

Battery-Powered Equipment

Bar-Code Readers

Notebook and Palmtop Computers

Operating Circuit

C1 C2

CMOS INPUTS

CMOS OUTPUTS
+3.3V

C3 ALL CAPACITORS 0.1µF
2 C1+
+6.6V
4 C1- VOLTAGE DOUBLER 5 C2+

VOLTAGE INVERTER
-6.6V C4
400k VCC 12 T1IN
400k VCC 11 T2IN

T1OUT 15 T2OUT 8

RS-562 OUTPUTS
13 R1OUT 10 R2OUT 1 EN

R1IN 14 5k

R2IN 9 5k SHDN 18 GND

RS-562/RS-232 INPUTS

ON/OFF
o Guaranteed Interoperability with RS-232 o Operates from a Single +3.0V to +3.6V Supply o 2 Drivers, 2 Receivers o Receivers Active in Shutdown Mode o Low-Power Shutdown 10µA Max o Small Wide SO o Three-State TTL/CMOS Receiver Outputs o 116kbps Guaranteed Data Rate
Ordering Information

PART MAX563CPN MAX563CWN MAX563C/D

TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C
* Dice are specified at TA = +25°C.

PIN-PACKAGE 18 Plastic DIP 18 Wide SO Dice *

Configuration

TOP VIEW

EN 1 C1+ 2 V+ 3 C1- 4 C2+ 5 C2- 6

V- 7 T2OUT 8

R2IN 9

MAX563
18 SHDN 17 VCC 16 GND 15 T1OUT 14 R1IN 13 R1OUT 12 T1IN 11 T2IN 10 R2OUT

DIP/SO

LapLink is a registered trademark of Traveling Software, Inc. Maxim Integrated Products 1

Call toll free 1-800-998-8800 for free samples or literature.

MAX563
+3.3V-Powered, EIA/TIA-562 Dual Transceiver with Receivers Active in Shutdown

ABSOLUTE MAXIMUM RATINGS

Power Supply Ranges

Supply Voltage VCC to +6V Input Voltages
to VCC -0.3V RIN TOUT Note Output Voltages
to VCC +0.3V Driver/Receiver Output Short Circuit to GND.........Continuous

Continuous Power Dissipation TA = +70°C Plastic DIP Wide SO

Operating Temperature Range...............................0°C to +70°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature soldering, 10sec .............................+300°C

Note 1 Input voltage measured with TOUT in high-impedance state. SHDN or VCC = 0V.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VCC = 3.0V to 3.6V, C1-C4 = 0.1µF, TA = TMIN to TMAX, unless otherwise noted.

PARAMETER RS-562 TRANSMITTERS

Output Voltage Swing

Data Rate Input Logic Threshold Low Input Logic Threshold High

Logic Pull-Up/Input Current

VIL VIH

Output Leakage Current

Transmitter Output Resistance

Output Short-Circuit Current

RS-232/RS-562 RECEIVERS

Input Voltage Operating Range

Input Threshold Low

Input Threshold High

Input Hysteresis

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Datasheet ID: MAX563C/D 647370