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MAX3485EEPA

Description
RS-422/RS-485 Interface IC 3.3V Powered, 15kV ESD-Protected, 12Mbps, Slew-Rate-Limited True RS-485/RS-422 Transceivers
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size230KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX3485EEPA Overview

RS-422/RS-485 Interface IC 3.3V Powered, 15kV ESD-Protected, 12Mbps, Slew-Rate-Limited True RS-485/RS-422 Transceivers

MAX3485EEPA Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
Parts packaging codeDIP
package instructionDIP, DIP8,.3
Contacts8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Differential outputYES
Number of drives1
Input propertiesDIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-422; EIA-485
JESD-30 codeR-PDIP-T8
JESD-609 codee0
length9.375 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing1.5 V
Maximum output low current0.0025 A
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP8,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)245
power supply3.3 V
Certification statusNot Qualified
Maximum receive delay
Number of receiver bits1
Maximum seat height4.572 mm
Maximum slew rate2.2 mA
Maximum supply voltage3.6 V
Minimum supply voltage3 V
Nominal supply voltage3.3 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
maximum transmission delay35 ns
width7.62 mm
Base Number Matches1
19-1474; Rev 0; 4/99
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
General Description
Devices in the MAX3483E family (MAX3483E/MAX3485E/
MAX3486E/MAX3488E/MAX3490E/MAX3491E) are
±15kV ESD-protected, +3.3V, low-power transceivers for
RS-485 and RS-422 communications. Each device con-
tains one driver and one receiver. The MAX3483E and
MAX3488E feature slew-rate-limited drivers that minimize
EMI and reduce reflections caused by improperly termi-
nated cables, allowing error-free data transmission at
data rates up to 250kbps. The partially slew-rate-limited
MAX3486E transmits up to 2.5Mbps. The MAX3485E,
MAX3490E, and MAX3491E transmit at up to 12Mbps.
All devices feature enhanced electrostatic discharge
(ESD) protection. All transmitter outputs and receiver
inputs are protected to ±15kV using IEC 1000-4-2 Air-
Gap Discharge, ±8kV using IEC 1000-4-2 Contact
Discharge, and ±15kV using the Human Body Model.
Drivers are short-circuit current limited and are protect-
ed against excessive power dissipation by thermal
shutdown circuitry that places the driver outputs into a
high-impedance state. The receiver input has a fail-safe
feature that guarantees a logic-high output if both
inputs are open circuit.
The MAX3488E, MAX3490E, and MAX3491E feature
full-duplex communication, while the MAX3483E,
MAX3485E, and MAX3486E are designed for half-
duplex communication.
Features
o
ESD Protection for RS-485 I/O Pins
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
o
Operate from a Single +3.3V Supply—
No Charge Pump Required
o
Interoperable with +5V Logic
o
Guaranteed 12Mbps Data Rate
(MAX3485E/MAX3490E/MAX3491E)
o
Slew-Rate Limited for Errorless Data Transmission
(MAX3483E/MAX3488E)
o
2nA Low-Current Shutdown Mode
(MAX3483E/MAX3485E/MAX3486E/MAX3491E)
o
-7V to +12V Common-Mode Input Voltage Range
o
Full-Duplex and Half-Duplex Versions Available
o
Industry-Standard 75176 Pinout
(MAX3483E/MAX3485E/MAX3486E)
o
Current-Limiting and Thermal Shutdown for
Driver Overload Protection
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
Ordering Information
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SO
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 Plastic DIP
MAX3483ECSA
MAX3483ECPA
MAX3483EESA
MAX3483EEPA
MAX3485ECSA
MAX3485ECPA
MAX3485EESA
MAX3485EEPA
Applications
Telecommunications
Industrial-Control Local Area Networks
Transceivers for EMI-Sensitive Applications
Integrated Services Digital Networks
Packet Switching
Ordering Information continued at end of data sheet.
Selector Guide
PART
NUMBER
MAX3483E
MAX3485E
MAX3486E
MAX3488E
MAX3490E
MAX3491E
GUARANTEED SUPPLY
DATA RATE
VOLTAGE
(Mbps)
(V)
0.25
12
2.5
0.25
12
12
3.0 to 3.6
DRIVER/ SHUTDOWN
±15kV
HALF/FULL SLEW-RATE
RECEIVER CURRENT
ESD
DUPLEX
LIMITED
ENABLE
(nA)
PROTECTION
Half
Half
Half
Full
Full
Full
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
No
No
Yes
2
2
2
2
Yes
Yes
Yes
Yes
Yes
Yes
PIN
COUNT
8
8
8
8
8
14
1
________________________________________________________________
Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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