SN75LV4735 Datasheet, PDF (1/11 Pages) Texas Instruments – 3.3-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SN75LV4735
3.3-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
D Meets or Exceeds the Requirements of
ANSI EIA / TIA-232-E and ITU V.28
D Operates With Single 3.3-V Power Supply
D LinBiCMOS™ Process Technology
D Three Drivers and Five Receivers
D ± 30-V Input Levels (Receiver)
D ESD Protection on RS-232 Lines Exceeds
6 kV Per MIL-STD-883C, Method 3015
D Applications
– EIA / TIA-232 Interface
– Battery-Powered Systems
– Notebook PC
– Computers
– Terminals
– Modems
D Voltage Converter Operates With Low
Capacitance . . . 0.47 µF Min
D Functionally Compatible With the
SN75LV4737A
SLLS135E – FEBRUARY 1992 – REVISED MAY 1995
DB PACKAGE
(TOP VIEW)
V_{DD 1}
C2 + 2
V_CC 3
C2 – 4
GND 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-end taped and}
reeled (SN75LV4735DBLE).
description
The SN75LV4735^† is a low-power 3.3-V multichannel RS-232 line driver/receiver. It includes three independent
RS-232 drivers and five independent RS-232 receivers. It is designed to operate off a single 3.3-V supply and
has an internal switched-capacitor voltage converter to generate the RS-232 output levels. The SN75LV4735
provides a single chip, single 3.3-V supply interface between the asynchronous communications element (ACE
or UART) and the serial-port connector of the data terminal equipment (DTE). This device has been designed
to conform to standard ANSI EIA / TIA-232-E.
The switched-capacitor voltage converter of the SN75LV4735 uses five small external capacitors to generate
the positive and negative voltages required by EIA / TIA-232-E line drivers from a single 3.3-V input. The drivers
feature output slew-rate limiting to eliminate the need for external filter capacitors. The receivers can accept ± 30
V without damage.
The device also features a reduced power or standby mode that cuts the quiescent power to the integrated
circuits when not transmitting data between the CPU and peripheral equipment. The STBY input is driven high
for standby (reduced power) mode and driven low for normal operating mode. When in the standby mode, all
driver outputs (DOUT1–3) and receiver outputs (ROUT1– 5) are in the high-impedance state. If the standby
feature is not used in an application, STBY should be tied to GND.
The SN75LV4735 has been designed using LinBiCMOS™ technology and cells contained in the Texas
Instruments LinASIC™ library. The SN75LV4735 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.
† _{Patent-pending design}
LinBiCMOS and LinASIC are trademarks of Texas Instruments Incorporated.
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 © 1995, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1