MAX3221E Line Driver/Receiver Datasheet

MAX3221E Datasheet, PDF, Equivalent


Part Number

MAX3221E

Description

3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver

Manufacture

etcTI

Total Page 26 Pages
Datasheet
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MAX3221E
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MAX3221E
SLLS686B – OCTOBER 2005 – REVISED SEPTEMBER 2016
MAX3221E 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver
With ±15-kV IEC ESD Protection
1 Features
1 ESD Protection for RS-232 Pins
– ±15-kV Human-Body Model (HBM)
– ±8 kV (IEC 61000-4-2, Contact Discharge)
– ±15 kV (IEC 61000-4-2, Air-Gap Discharge)
• 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 kbit/s
• One Driver and One Receiver
• Low Standby Current: 1 µA Typical
• Accepts 5-V Logic Input With 3.3-V Supply
• Auto-Power-Down Feature Automatically Disables
Drivers for Power Savings
• Alternative High-Speed Device (1 Mbit/s)
– SN75C3221E and SN65C3221E
2 Applications
• Battery-Powered, Hand-Held, and Portable
Equipment
• Notebooks and Laptops
• Mobile Phones and Wireless Devices
3 Description
The MAX3221E is a single driver, single receiver RS-
232 solution operating from a single VCC supply. The
RS-232 pins provide IEC 61000-4-2 ESD protection.
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 kbit/s and a maximum
of 30-V/µs driver output slew rate.
Flexible control options for power management are
available. Auto-power down disables driver and
charge pump when the receiver is disconnected or
the remote driver is power down. The drivers can be
manually enabled or disabled. INVALID output goes
low when receiver input is unconnected or power off.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
MAX3221ECDB,
MAX3221EIDB
SSOP (16)
6.20 mm × 5.30 mm
MAX3221ECPW,
MAX3221EIPW
TSSOP (16)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
3.3V, 5V
POWER
FORCEON
FORCEOFF
EN
AUTO-
POWERDOWN
RX Enable
1
DIN TX
1 DOUT
RS-232
ROUT
1
250 kb/s
IEC 61000-4-2
RX
1 RIN
RS-232
INVALID
STATUS
Copyright © 2016, Texas Instruments Incorporated
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.

MAX3221E
MAX3221E
SLLS686B – OCTOBER 2005 – REVISED SEPTEMBER 2016
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........................................... 5
6.6 Electrical Characteristics: Driver ............................... 5
6.7 Electrical Characteristics: Receiver .......................... 6
6.8 Electrical Characteristics: Auto-Power Down............ 6
6.9 Switching Characteristics: Driver .............................. 6
6.10 Switching Characteristics: Receiver........................ 6
6.11 Switching Characteristics: Auto-Power Down......... 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 ..................... 16
11 Layout................................................................... 16
11.1 Layout Guidelines ................................................. 16
11.2 Layout Example .................................................... 16
12 Device and Documentation Support ................. 17
12.1 Receiving Notification of Documentation Updates 17
12.2 Community Resource............................................ 17
12.3 Trademarks ........................................................... 17
12.4 Electrostatic Discharge Caution ............................ 17
12.5 Glossary ................................................................ 17
13 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (May 2006) to Revision B
Page
• Added 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
• Deleted Ordering Information table; see the POA at the end of the data sheet ................................................................... 1
• Changed RθJA thermal values: 82 to 92 for DB package and 108 to 100.3 for PW Package ................................................ 5
2 Submit Documentation Feedback
Product Folder Links: MAX3221E
Copyright © 2005–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design MAX3221E S LLS686B – OCTOBER 2005 – REVISED SE PTEMBER 2016 MAX3221E 3-V to 5.5-V Sing le-Channel RS-232 Line Driver/Receiver With ±15-kV IEC ESD Protection 1 Feat ures •1 ESD Protection for RS-232 Pin s – ±15-kV Human-Body Model (HBM) ±8 kV (IEC 61000-4-2, Contact Discha rge) – ±15 kV (IEC 61000-4-2, Air-Ga p Discharge) • Meets or Exceeds the R equirements of TIA/EIA232-F and ITU v.2 8 Standards • Operates With 3-V to 5. 5-V VCC Supply • Operates up to 250 k bit/s • One Driver and One Receiver Low Standby Current: 1 µA Typical Accepts 5-V Logic Input With 3.3-V S upply • Auto-Power-Down Feature Autom atically Disables Drivers for Power Sav ings • Alternative High-Speed Device (1 Mbit/s) – SN75C3221E and SN65C3221 E 2 Applications • Battery-Powered, H and-Held, and Portable Equipment • No tebooks and Laptops • Mobile Phones and Wireless Devices 3 Description The MAX3221E is a single drive.
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