SN75LBC241_06 Datasheet, PDF (1/10 Pages) Texas Instruments – LOW-POWER LinBiCMOS MULTIPLE DRIVERS AND RECEIVERS

SN75LBC241
LOW-POWER LinBiCMOS MULTIPLE DRIVERS AND RECEIVERS
D Operates With Single 5-V Power Supply
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU Recommendation
V.28
D Improved Performance Replacement for
MAX241
D Operates at Data Rates up to 100 kbit/s
Over a 3-m Cable
D Low-Power Shutdown Mode . . . ≤1 µA Typ
D LinBiCMOS Process Technology
D Four Drivers and Five Receivers
D ±30-V Input Levels
D 3-State TTL/CMOS Receiver Outputs
D ±9-V Output Swing With a 5-V Supply
D Applications
– TIA/EIA-232-F Interface
– Battery-Powered Systems
– Terminals
– Modems
– Computers
D Packaged in Plastic Small-Outline Package
SLLS137F – MAY 1992 – REVISED FEBRUARY 2001
DW PACKAGE
(TOP VIEW)
TOUT3 1
TOUT1 2
TOUT2 3
RIN2 4
ROUT2 5
TIN2 6
TIN1 7
ROUT1 8
RIN1 9
GND 10
V_CC 11
C1+ 12
V_DD 13
C1– 14
28 TOUT4
27 RIN3
26 ROUT3
25 SHUTDOWN
24 EN
23 RIN4
22 ROUT4
21 TIN4
20 TIN3
19 ROUT5
18 RIN5
17 V_SS
16 C2–
15 C2+
description
The SN75LBC241 is a low-power LinBiCMOS line-interface device containing four independent drivers and
five receivers. It is designed as a plug-in replacement for the Maxim MAX241. The SN75LBC241 provides a
capacitive-charge-pump voltage generator to produce RS-232 voltage levels from a 5-V supply. The
charge-pump oscillator frequency is 20 kHz. Each receiver converts RS-232 inputs to 5-V TTL/CMOS levels.
The receivers have a typical threshold of 1.2 V and a typical hysteresis of 0.5 V and can accept ±30-V inputs.
Each driver converts TTL/CMOS input levels into RS-232 levels.
The SN75LBC241 includes a receiver, a 3-state control line, and a low-power shutdown control line. When the
EN line is high, receiver outputs are placed in the high-impedance state. When EN is low, normal operation is
enabled.
The shutdown mode reduces power dissipation to less than 5 µW, typically. In this mode, receiver outputs have
high impedance, driver outputs are turned off, and the charge-pump circuit is turned off. When SHUTDOWN
is high, the shutdown mode is enabled. When SHUTDOWN is low, normal operation is enabled.
This device has been designed to conform to TIA/EIA-232-F and ITU Recommendation V.28.
The SN75LBC241 has been designed using LinBiCMOS technology and cells contained in the
Texas Instruments LinASIC library. Use of LinBiCMOS circuitry increases latch-up immunity in this device
over an all-CMOS design.
The SN75LBC241 is characterized for operation from 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.
LinBiCMOS and LinASIC are trademarks of Texas Instruments.
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  2001, Texas Instruments Incorporated
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