TRS3221 Datasheet, PDF (1/17 Pages) Texas Instruments – 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION

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TRS3221
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD PROTECTION
SLLS814 – JULY 2007
FEATURES
• 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 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)
– TRSF3221
• 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 1
C1+ 2
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
RIN 8
16 FORCEOFF
15 V_CC
14 GND
13 DOUT
12 FORCEON
11 DIN
10 INVALID
9 ROUT
DESCRIPTION/ORDERING INFORMATION
The TRS3221 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.
T_A
0°C to 70°C
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ^{(1) (2)}
ORDERABLE PART NUMBER
SSOP – DB
Tube of 50
Reel of 2000
TRS3221CDB
TRS3221CDBR
TSSOP – PW
Tube of 50
Reel of 2000
TRS3221CPW
TRS3221CPWR
SSOP – DB
Tube of 50
Reel of 2000
TRS3221IDB
TRS3221IDBR
TSSOP – PW
Tube of 50
Reel of 2000
TRS3221IPW
TRS3221IPWR
TOP-SIDE MARKING
RS21C
RS21C
RS21I
RS21I
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com.
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated