MAX3243_06 Datasheet, PDF (1/16 Pages) Texas Instruments – 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH +-15-kV ESD (HBM) PROTECTION

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MAX3243
3ĆV TO 5.5ĆV MULTICHANNEL RSĆ232 LINE DRIVER/RECEIVER
WITH ±15ĆkV ESD (HBM) PROTECTION
SLLS350L − APRIL 1999 − REVISED MARCH 2004
D Single-Chip and Single-Supply Interface for
IBM PC/AT Serial Port
D RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
D Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
D Operates With 3-V to 5.5-V V_CC Supply
D Three Drivers and Five Receivers
D Operates Up To 250 kbit/s
D Designed to Transmit at a Data Rate of
250 kbit/s
D Low Standby Current . . . 1 µA Typical
D External Capacitors . . . 4 × 0.1 µF
D Accepts 5-V Logic Input With 3.3-V Supply
D Always-Active Noninverting Receiver
Output (ROUT2B)
D Alternative High-Speed Pin-Compatible
Device (1 Mbit/s)
− SNx5C3243
D Serial-Mouse Driveability
D Auto-Powerdown Feature to Disable Driver
Outputs When No Valid RS-232 Signal Is
Sensed
D Applications
− Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
DB, DW, OR PW PACKAGE
(TOP VIEW)
C2+ 1
C2− 2
V− 3
RIN1 4
RIN2 5
RIN3 6
RIN4 7
RIN5 8
DOUT1 9
DOUT2 10
DOUT3 11
DIN3 12
DIN2 ¹³
DIN1 ¹⁴
28 C1+
27 V+
26 V_CC
25 GND
24 C1−
23 FORCEON
22 FORCEOFF
21 INVALID
20 ROUT2B
19 ROUT1
18 _ROUT2
17 _ROUT3
16 _ROUT4
15 _ROUT5
description/ordering information
The MAX3243 consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD
(HBM) 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. This combination of drivers and receivers matches that needed for the typical serial
port used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors allow operation
from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting output
(ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered down.
The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.
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.
AT, IBM, and PC 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  2004, Texas Instruments Incorporated
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