Datasheet

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 ±  
SLLS348M − JUNE 1999 − REVISED MARCH 2004
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
D Operates With 3-V to 5.5-V V
CC
Supply
D Operates Up To 250 kbit/s
D One Driver and One Receiver
D Low Standby Current...1 µA Typical
D External Capacitors ...4 × 0.1 µF
D Accepts 5-V Logic Input With 3.3-V Supply
D Alternative High-Speed Pin-Compatible
Device (1 Mbit/s)
− SNx5C3221
D Auto-Powerdown Feature Automatically
Disables Drivers for Power Savings
D Applications
− Battery-Powered, Hand-Held, and
Portable Equipment
− PDAs and Palmtop PCs
− Notebooks, Subnotebooks, and Laptops
− Digital Cameras
− Mobile Phones and Wireless Devices
description/ordering information
The MAX3221 consists of one line driver, one line receiver, 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 kbit/s and a maximum of 30-V/µs driver
output slew rate.
ORDERING INFORMATION
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP (DB)
Tube of 80 MAX3221CDB
MA3221C
−0°C to 70°C
SSOP (DB)
Reel of 2000 MAX3221CDBR
MA3221C
−0°C to 70°C
TSSOP (PW)
Tube of 90 MAX3221CPW
MA3221C
TSSOP (PW)
Reel of 2000 MAX3221CPWR
MA3221C
SSOP (DB)
Tube of 80 MAX3221IDB
MB3221I
−40°C to 85°C
SSOP (DB)
Reel of 2000 MAX3221IDBR
MB3221I
−40°C to 85°C
TSSOP (PW)
Tube of 90 MAX3221IPW
MB3221I
TSSOP (PW)
Reel of 2000 MAX3221IPWR
MB3221I
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright 2004, Texas Instruments Incorporated
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DB OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
EN
C1+
V+
C1−
C2+
C2−
V−
RIN
FORCEOFF
V
CC
GND
DOUT
FORCEON
DIN
INVALID
ROUT

Summary of content (19 pages)