MAX3221
3 V TO 5.5 V SINGLE CHANNEL RS 232 LINE DRIVER/RECEIVER
WITH
±15
kV ESD PROTECTION
SLLS348M − JUNE 1999 − REVISED MARCH 2004
D
RS-232 Bus-Pin ESD Protection Exceeds
D
D
D
D
D
D
D
D
D
D
±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 V
CC
Supply
Operates Up To 250 kbit/s
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 Mbit/s)
− SNx5C3221
Auto-Powerdown Feature Automatically
Disables Drivers for Power Savings
Applications
− Battery-Powered, Hand-Held, and
Portable Equipment
− PDAs and Palmtop PCs
− Notebooks, Subnotebooks, and Laptops
− Digital Cameras
− Mobile Phones and Wireless Devices
DB OR PW PACKAGE
(TOP VIEW)
EN
C1+
V+
C1−
C2+
C2−
V−
RIN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FORCEOFF
V
CC
GND
DOUT
FORCEON
DIN
INVALID
ROUT
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
TA
SSOP (DB)
−0°C to 70°C
TSSOP (PW)
SSOP (DB)
−40°C to 85°C
TSSOP (PW)
PACKAGE†
Tube of 80
Reel of 2000
Tube of 90
Reel of 2000
Tube of 80
Reel of 2000
Tube of 90
Reel of 2000
ORDERABLE
PART NUMBER
MAX3221CDB
MAX3221CDBR
MAX3221CPW
MAX3221CPWR
MAX3221IDB
MAX3221IDBR
MAX3221IPW
MAX3221IPWR
MB3221I
MB3221I
MA3221C
MA3221C
TOP-SIDE
MARKING
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2004, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
