MAX3462ESA+ Maxim Integrated Products, MAX3462ESA+ Datasheet

IC TXRX RS485/422 8-SOIC

MAX3462ESA+

Manufacturer Part Number
MAX3462ESA+
Description
IC TXRX RS485/422 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX3462ESA+

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Data Rate
20000 Kbps
Propagation Delay Time Ns
20 ns
Operating Supply Voltage
5 V
Supply Current
2.5 mA
Operating Temperature Range
- 40 C to + 85 C
Input Voltage
5 V
Maximum Power Dissipation
471 mW
Mounting Style
SMD/SMT
Output Current
+/- 250 mA
Output Voltage
- 8 V to + 13 V
Product
RS-422
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX3460–MAX3464 are high-speed differential
bus transceivers for RS-485 and RS-422 communica-
tions. They are designed to meet TIA/EIA-422-B,
TIA/EIA-485-A, V.11, and X.27 standards. The trans-
ceiver complies with the Profibus specification provid-
ing +2.1V output level with a 54Ω load, 20Mbps data
rate, and output skew less than 2ns. Each part contains
one three-state differential line driver and one differen-
tial input line receiver. The devices operate from a +5V
supply and feature true fail-safe circuitry, which guaran-
tees a logic-high receiver output when the receiver
inputs are open or shorted. This enables all receiver
outputs on a terminated bus to output logic highs when
all transmitters are disabled.
All devices feature a 1/4 standard unit load receiver
input impedance that allows 128 transceivers on the
bus. Driver and receiver propagation delays are guar-
anteed under 20ns for multidrop, clock distribution
applications. Drivers are short-circuit current limited
and are protected against excessive power dissipation
by thermal shutdown circuitry. The driver and receiver
feature active-high and active-low enables, respective-
ly, that can be connected together externally to serve
as a direction control.
19-2217; Rev 1; 2/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX3460
MAX3461
MAX3462
MAX3463
MAX3464
NUMBER
PART
High-Speed RS-485 Communications
High-Speed RS-422 Communications
Level Translators
Industrial-Control Local Area Networks
Profibus Applications
HALF/FULL
DUPLEX
________________________________________________________________ Maxim Integrated Products
+5V, Fail-Safe, 20Mbps, Profibus RS-485/
Half
Half
Full
Full
Full
General Description
RECEIVER/
ENABLE
DRIVER
Yes
Yes
Yes
Yes
No
Applications
SHUTDOWN
POWER
LOW-
Yes
Yes
Yes
Yes
No
HOT SWAP
Yes
Yes
o Recommended for Profibus Applications
o Guaranteed 20Mbps Data Rate
o 20ns Transmitter and Receiver Propagation Delay
o 2ns Transmitter and Receiver Skew
o High Differential Driver Output Level (2.1V on 54Ω)
o Hot-Swap Versions
o 1µA Shutdown Supply Current
o Low Supply Current Requirements (2.5mA typ)
o Allow Up to 128 Transceivers on the Bus
o True Fail-Safe Receiver while Maintaining EIA/TIA-
o Designed for Multipoint Transmissions on Long
o Full Duplex and Half Duplex Versions Available
o Phase Controls to Correct for Twisted-Pair
o Current-Limiting and Thermal Shutdown for
No
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
No
No
MAX3460CSD
MAX3460CPD
MAX3460ESD
MAX3460EPD
485 Compatibility
or Noisy Bus Lines
Reversal for 14-Pin Versions
Driver Overload Protection
RS-422 Transceivers
PART
DRIVER PHASE
RECEIVER/
SELECT
Yes
Yes
No
No
No
-40°C to +85°C
-40°C to +85°C
Ordering Information
TEMP RANGE
0°C to +70°C
0°C to +70°C
INDEPENDENT
SHDN PIN
Selector Guide
Yes
Yes
No
No
No
PIN-PACKAGE
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
Features
PIN COUNT
14
14
8
8
8
1

Related parts for MAX3462ESA+

MAX3462ESA+ Summary of contents

Page 1

... MAX3463 Half Yes MAX3464 Half Yes ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. RS-422 Transceivers o Recommended for Profibus Applications o Guaranteed 20Mbps Data Rate o 20ns Transmitter and Receiver Propagation Delay o 2ns Transmitter and Receiver Skew o High Differential Driver Output Level (2.1V on 54Ω ...

Page 2

Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers ABSOLUTE MAXIMUM RATINGS Supply Voltage ( GND ..................................-0.3V to +6V CC Control Input Voltage (RE, DE, DI, SHDN, TXP, RXP) to GND....................................................-0. Driver Output Voltage ( GND ...

Page 3

Fail-Safe, 20Mbps, Profibus RS-485/ ELECTRICAL CHARACTERISTICS (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Receiver Input Hysteresis Receiver Output High Voltage Receiver ...

Page 4

Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers ELECTRICAL CHARACTERISTICS (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Time to Shutdown t Driver Enable ...

Page 5

Fail-Safe, 20Mbps, Profibus RS-485 +5V +25°C, unless otherwise noted SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE -40 - TEMPERATURE (°C) RECEIVER PROPAGATION DELAY vs. TEMPERATURE 11 ...

Page 6

Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers (V = +5V +25°C, unless otherwise noted DRIVER AND RECEIVER PROPAGATION DELAYS MAX3460-64 toc13 10ns/div PIN MAX3460/ MAX3463/ MAX3462 MAX3461 MAX3464 HALF ...

Page 7

Fail-Safe, 20Mbps, Profibus RS-485/ MAX3460/MAX3461 TRANSMITTING INPUTS SHDN RECEIVING INPUTS RE DE A–B ≥ -0.05V 0 ...

Page 8

Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers TOP VIEW SHDN RXP GND GND 7 8 TXP ...

Page 9

Fail-Safe, 20Mbps, Profibus RS-485/ Detailed Description The MAX3460–MAX3464 high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature true fail-safe cir- cuitry, which guarantees a logic-high receiver output when the receiver inputs are open or ...

Page 10

Fail-Safe, 20Mbps, Profibus RS-485 Figure 5. Driver DC Test Load DIFF Figure 6. Driver Timing Test Circuit ≤ 3ns, t ≤ 3ns ƒ = 1MHz, ...

Page 11

Fail-Safe, 20Mbps, Profibus RS-485/ ATE V ID Figure 12. Receiver Propagation Delay Test Circuit Applications Information 128 Transceivers on the Bus The standard RS-485 receiver input impedance is 12kΩ (one-unit load), and the standard driver can drive up to ...

Page 12

Fail-Safe, 20Mbps, Profibus RS-485/ RS-422 Transceivers 120Ω MAX3463 MAX3464 (HALF-DUPLEX) Figure 13. Typical Half-Duplex RS-485 Network A 120Ω 120Ω ...

Page 13

Fail-Safe, 20Mbps, Profibus RS-485/ (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW ______________________________________________________________________________________ RS-422 ...

Page 14

... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products ...

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