MAX13223EEUP+T Maxim Integrated Products, MAX13223EEUP+T Datasheet

IC TXRX RS-232 2TX/2RX 20-TSSOP

MAX13223EEUP+T

Manufacturer Part Number
MAX13223EEUP+T
Description
IC TXRX RS-232 2TX/2RX 20-TSSOP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX13223EEUP+T

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX13223E is a +3.0V to +5.5V-powered EIA/TIA-
232 and V.28 communications interface with fault protec-
tion on the RS-232 line interface. This allows shorts of the
transmitter outputs and receiver inputs to voltages in the
±70V range without adversely affecting the MAX13223E.
The MAX13223E achieves 1µA supply current using
Maxim’s AutoShutdown™ feature. The MAX13223E
automatically enters a low-power shutdown mode when
the RS-232 cable is disconnected or the receivers are
inactive. The device turns on again when a valid transi-
tion at any receiver input is sensed. A proprietary, high-
efficiency, dual charge-pump power supply and a
low-dropout transmitter combine to deliver true RS-232
performance from a single +3.0V to +5.5V supply.
The MAX13223E has two receivers and two drivers and is
guaranteed to run at data rates of 250kbps for one trans-
mitter switching while maintaining RS-232 output levels.
The MAX13223E operates from input voltages ranging
from +3.0V to +5.5V and is available in a 20-pin, 6.5mm
x 4.4mm, TSSOP package. The MAX13223E is speci-
fied over the -40°C to +85°C temperature range.
19-4585; Rev 1; 2/11
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Automotive
Telematics Equipment
Base Stations
Utility Meters
Industrial Equipment
Telecomm Equipment
POS Terminal Equipment
________________________________________________________________ Maxim Integrated Products
General Description
±70V Fault-Protected, 3.0V to 5.5V,
Applications
2Tx/2Rx RS-232 Transceiver
♦ ±70V Fault Protection
♦ +3.0V to +5.5V Supply Voltage
♦ Overvoltage Current Limiting
♦ Current Protection at Transmitter Outputs
♦ AutoShutdown
♦ 250kbps (Max) Data Rate
♦ Low Current Consumption in Shutdown 1µA (typ)
♦ Thermal Shutdown Protection
♦ ±8kV IEC 61000-4-2 Contact-Discharge Method
♦ -40°C to +85°C Operating Temperature Range
+ Denotes a lead(Pb)-free/RoHS-compliant package.
MAX13223EEUP+
TTL/CMOS
TTL/CMOS
OUTPUTS
PART
INPUTS
C1
C2
Typical Operating Circuit
C1-
C2-
T1IN
T2IN
R1OUT
R2OUT
C1+
C2+
EN
FORCEON
C
BYPASS
0.1μF
-40°C to +85°C
TEMP RANGE
Ordering Information
MAX13223E
GND
V
V
CC
CC
5kΩ
5kΩ
FORCEOFF
INVALID
T1OUT
T2OUT
R1IN
R2IN
V+
V-
PIN-PACKAGE
Features
V
20 TSSOP
TO POWER-
MANAGEMENT
UNIT
CC
C3
C4
RS-232
OUTPUTS
RS-232
INPUTS
1

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MAX13223EEUP+T Summary of contents

Page 1

... Base Stations Utility Meters Industrial Equipment Telecomm Equipment POS Terminal Equipment AutoShutdown is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 2Tx/2Rx RS-232 Transceiver ♦ ...

Page 2

Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) V ...................................................................... -0.3V to +7. ..........................................................................-0.3V to +7.0V V- ...........................................................................+0.3V to -7. ................................................................................+13V Input Voltages T1IN, T2IN, EN, FORCEON, FORCEOFF ...

Page 3

Fault-Protected, 3.0V to 5.5V, ELECTRICAL CHARACTERISTICS (continued +3.0V to +5.5V -40°C to +85°C, unless otherwise noted. Typical values are wise noted. For V = +3.0V to +3.6V ...

Page 4

Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver TIMING CHARACTERISTICS (V = +3.0V to +5.5V -40°C to +85°C, unless otherwise noted. Typical values are wise noted. For V = +3.0V to +3.6V ...

Page 5

Fault-Protected, 3.0V to 5.5V, T_OUT T_IN Figure 1. Driver Test Circuit T_IN PTHL T_OUT -V 0 Figure 3. Driver Propagation Delay V IH R_IN 1.3V V ...

Page 6

Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver (T = +25°C, unless otherwise noted.) A TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE OUT OUT 1000 2000 LOAD CAPACITANCE (pF) ...

Page 7

Fault-Protected, 3.0V to 5.5V, PIN NAME Receiver Enable Control Input. Drive EN low for normal operation. Drive EN high to force the receiver outputs EN 1 (R1OUT, R2OUT) into a high-impedance state. 2 C1+ Positive Terminal of the Voltage ...

Page 8

Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver FORCEOFF POWER- FORCEON MANAGEMENT UNIT OR CPU INVALID MAX13223E UART Figure 5. Interface Under Control of PMU Table 1. Receiver Control Truth Table OPERATION MODE Active (FORCEON Active (AutoShutdown) Shutdown ...

Page 9

Fault-Protected, 3.0V to 5.5V, Table 2. AutoShutdown Control INPUTS VALID RECEIVER INPUT FORCEOFF FORCEON Don’t Care. Applications Information Capacitor Selection The capacitor type used for ...

Page 10

Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver The MAX13223E is designed to survive faults such as direct shorts to power supplies, miswiring faults, con- nector failures, and tool misapplications of the transmit- ter outputs and receiver inputs to voltages ...

Page 11

Fault-Protected, 3.0V to 5.5V 50MΩ to 100MΩ 330Ω DISCHARGE CHARGE CURRENT RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 150pF CAPACITOR DC SOURCE Figure 9a. IEC 61000-4-2 ESD Test Model I 100% 90% 10% t ...

Page 12

... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2011 Maxim Integrated Products ...

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