SN75LV4737A_08 Datasheet, PDF (1/17 Pages) Texas Instruments – 3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SN75LV4737A
3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
D Single-Chip and Single-Supply Interface for
IBM PC/AT™ Serial Port
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.11 Standards
D Operates With 3.3-V or 5-V Supplies
D One Receiver Remains Active During
Standby (Wake-up Mode)
D Designed to Operate at 128 kbit/s Over a
3-m Cable
D Low Standby Current . . . 5 µA Max
D ESD Protection on RS-232 Pins Meets or
Exceeds 4 kV (HBM) and 1.5 kV (HBM) on
All Pins Per MIL-STD-883, Method 3015
D External Capacitors . . . 0.1 µF
(V_CC = 3.3 V . . . Five External Capacitors)
(V_CC = 5 V . . . Four External Capacitors)
D Accepts 5-V Logic Input With 3.3-V Supply
D Applications
– RS-232 Interface
– Battery-Powered Systems, PDAs
– Notebook, Laptop, and Palmtop PCs
– External Modems and Hand-Held
Terminals
D Packaged in Shrink Small-Outline Package
SLLS178D – APRIL 1994 – REVISED FEBRUARY 2000
DB PACKAGE†
(TOP VIEW)
V_{DD 1}
C2+ ₂
V_{CC 3}
C2– 4
EN 5
C1+ 6
DIN1 7
DIN2 8
DIN3 9
ROUT1 10
ROUT2 11
ROUT3 12
ROUT4 13
ROUT5 14
28 ^C3+
27 ^GND
26 ^C3–
25 V_SS
24 C1–
23 STBY
22 DOUT1
21 DOUT2
20 DOUT3
19 RIN1
18 RIN2
17 RIN3
16 RIN4
15 RIN5
† _{The DB package is only}
available in left-ended tape and
reel (order part number
SN75LV4737ADBR).
description
The SN75LV4737A^‡ consists of three line drivers, five line receivers, and a charge-pump circuit. It provides the
electrical interface between an asynchronous communication controller and the serial-port connector, and
meets the requirements of TIA/EIA-232-F. This combination of drivers and receivers matches those needed for
the typical serial port used in an IBM PC/AT or compatibles. The charge pump and five small external capacitors
allow operation from a single 3.3-V supply, and four capacitors allow operation from a 5-V supply.
The device has flexible control options for power management when the serial port is inactive. A common
disable for all of the drivers and receivers is provided with the active-high STBY input. The active-low EN input
is an enable for one receiver to implement a wake-up feature for the serial port. All the logic inputs can accept
signals from controllers operating from a 5-V supply, even though the SN75LV4737A is operating from 3.3 V.
The SN75LV4737A is characterized for operation over the temperature range of 0°C to 70°C.
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.
‡ _{Patent-pending design}
IBM and PC/AT are trademarks of International Business Machines Corporation.
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 © 2000, Texas Instruments Incorporated
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