TRS211 Datasheet, PDF (1/17 Pages) Texas Instruments – 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION

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TRS211
5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD PROTECTION
SLLS811 – 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 at 5-V V_CC Supply
• Four Drivers and Five Receivers
• Operates up to 120 kbit/s
• Low Supply Current in Shutdown
Mode . . . 1 μA Typical
• External Capacitors . . . 4 × 0.1 μF
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
APPLICATIONS
• Battery-Powered Systems
• PDAs
• Notebooks
• Laptops
• Palmtop PCs
• Hand-Held Equipment
DB OR DW PACKAGE
(TOP VIEW)
DOUT3 1
DOUT1 2
DOUT2 3
RIN2 4
ROUT2 ⁵
DIN2 ⁶
DIN1 ⁷
ROUT1 ⁸
RIN1 ⁹
GND ¹⁰
V_CC ¹¹
C1+ ¹²
V+ ¹³
C1− ¹⁴
28 DOUT4
27 RIN3
26 ROUT3
25 SHDN
24 _EN
23 _RIN4
22 _ROUT4
21 _DIN4
20 _DIN3
19 _ROUT5
18 _RIN5
17 _V−
16 _C2−
15 _C2+
DESCRIPTION/ORDERING INFORMATION
The TRS211 device consists of four line drivers, five line receivers, 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 5-V
supply. The devices operate at data signaling rates up to 120 kbit/s and a maximum of 30-V/μs driver output
slew rate.
The TRS211 has both shutdown (SHDN) and enable control (EN). In shutdown mode, the charge pumps are
turned off, V+ is pulled down to V_CC, V– is pulled to GND, and the transmitter outputs are disabled. This reduces
supply current typically to 1 μA. EN is used to put the receiver outputs into the high-impedance state to allow
wired-OR connection of two RS-232 ports. It has no effect on the RS-232 drivers or the charge pumps.
T_A
0°C to 70°C
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ^{(1) (2)}
ORDERABLE PART NUMBER
SOIC – DW
Tube of 20
Reel of 1000
TRS211CDW
TRS211CDWR
SSOP – DB
Tube of 50
Reel of 2000
TRS211CDB
TRS211CDBR
SOIC – DW
Tube of 20
Reel of 1000
TRS211IDW
TRS211IDWR
SSOP – DB
Tube of 50
Reel of 2000
TRS211IDB
TRS211IDBR
TOP-SIDE MARKING
TRS211C
TRS211C
TRS211I
TRS211I
(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
website 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