MAX3221 and Receiver Datasheet

MAX3221 Datasheet, PDF, Equivalent


Part Number

MAX3221

Description

3-V to 5.5-V RS-232 Line Driver and Receiver

Manufacture

etcTI

Total Page 26 Pages
Datasheet
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MAX3221
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MAX3221
SLLS348O – JUNE 1999 – REVISED JUNE 2015
MAX3221 3-V to 5.5-V RS-232 Line Driver and Receiver
With ±15-kV ESD Protection
1 Features
1 RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human Body Model (HBM)
• Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU V.28 Standards
• Operates With 3-V to 5.5-V VCC Supply
• Operates up to 250 kbps
• One Driver and One Receiver
• Low Standby Current: 1 μA Typical
• External Capacitors: 4 × 0.1 μF
• Accepts 5-V Logic Input With 3.3-V Supply
• Alternative High-Speed Pin-Compatible
Device (1 Mbps)
– SNx5C3221
• Automatic Power-Down Feature Automatically
Disables Drivers for Power Savings
2 Applications
• Battery-Powered, Hand-Held, and Portable
Equipment
• Notebooks, Subnotebooks, and Laptops
• Digital Cameras
• Mobile Phones and Wireless Devices
3 Description
The MAX3221 device consists of one line driver, one
line receiver with dedicated enable pin, and a dual
charge-pump circuit with ±15-kV ESD protection pin
to pin (serial-port connection pins, including GND).
The device meets the requirements of TIA/EIA-232-F
and provides the electrical interface between an
asynchronous communication controller and the
serial-port connector. The charge pump and four
small external capacitors allow operation from a
single 3-V to 5.5-V supply. These devices operate at
data signaling rates up to 250 kbps and a maximum
of 30-V/μs driver output slew rate.
Flexible control options for power management are
available when the serial port is inactive. The
automatic power-down feature functions when
FORCEON is low and FORCEOFF is high. During
this mode of operation, if the device does not sense a
valid
RS-232 signal on the receiver input, the driver output
is disabled and the supply current is reduced to 1 μA.
The INVALID output notifies the user if an RS-232
signal is present at the receiver input.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
MAX3221xDB
SSOP (32)
6.20 mm × 5.30 mm
MAX3221xPW
TSSOP (32)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Diagram
3.3 V, 5 V
EN [RX]
POWER
FORCEON
FORCEOFF
APD
1
DIN TX
1 DOUT
RS232
ROUT
1
1
RX
RIN
RS232
INVALID
STATUS
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

MAX3221
MAX3221
SLLS348O – JUNE 1999 – REVISED JUNE 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics – Power ............................ 5
6.6 Electrical Characteristics – Driver ............................. 5
6.7 Electrical Characteristics – Receiver ........................ 6
6.8 Electrical Characteristics – Status ........................... 6
6.9 Switching Characteristics – Driver ............................ 6
6.10 Switching Characteristics – Receiver ..................... 7
6.11 Switching Characteristics – Status.......................... 7
6.12 Typical Characteristics ............................................ 7
7 Parameter Measurement Information .................. 8
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 12
9 Application and Implementation ........................ 13
9.1 Application Information............................................ 13
9.2 Typical Application .................................................. 13
10 Power Supply Recommendations ..................... 14
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 15
12 Device and Documentation Support ................. 16
12.1 Community Resources.......................................... 16
12.2 Trademarks ........................................................... 16
12.3 Electrostatic Discharge Caution ............................ 16
12.4 Glossary ................................................................ 16
13 Mechanical, Packaging, and Orderable
Information ........................................................... 16
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision N (January 2014) to Revision O
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
Changes from Revision M (March 2004) to Revision N
Page
• Updated document to new TI data sheet format - no specification changes. ........................................................................ 1
• Deleted Ordering Information table. ....................................................................................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: MAX3221
Copyright © 1999–2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design MAX3221 SL LS348O – JUNE 1999 – REVISED JUNE 2 015 MAX3221 3-V to 5.5-V RS-232 Line Dr iver and Receiver With ±15-kV ESD Prot ection 1 Features •1 RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Hu man Body Model (HBM) • Meets or Excee ds the Requirements of TIA/EIA-232-F an d ITU V.28 Standards • Operates With 3-V to 5.5-V VCC Supply • Operates up to 250 kbps • One Driver and One Rec eiver • Low Standby Current: 1 μA Ty pical • External Capacitors: 4 × 0.1 μF • Accepts 5-V Logic Input With 3 .3-V Supply • Alternative High-Speed Pin-Compatible Device (1 Mbps) – SNx5 C3221 • Automatic Power-Down Feature Automatically Disables Drivers for Powe r Savings 2 Applications • Battery-Po wered, Hand-Held, and Portable Equipmen t • Notebooks, Subnotebooks, and Lapt ops • Digital Cameras • Mobile Phon es and Wireless Devices 3 Description The MAX3221 device consists of one line driver, one line receiv.
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