Texas Instruments MAX3243E Handleiding
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MAX3243E 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver
With ±15-kV IEC ESD Protection
1 Features
•Single-chip and single-supply interface
for IBM
™
PC/AT
™
serial port
•ESD Protection for RS-232 bus pins
–±15-kV Human-body model (HBM)
–±8-kV IEC61000-4-2, contact discharge
–±15-kV IEC61000-4-2, air-gap discharge
•Meets or exceeds requirements of
TIA/EIA-232-F and ITU V.28 standards
•Operates with 3-V to 5.5-V V
CC
supply
•Always-active noninverting receiver
output (ROUT2B)
•Designed to transmit at a data rate
up to 500 kbit/s
•Low standby current: 1 μA typical
•External capacitors: 4 × 0.1 μF
•Accepts 5-V logic input with 3.3-V supply
•Designed to Be interchangeable with
maxim MAX3243E
•Serial-Mouse Driveability
•Auto-powerdown feature to disable driver outputs
when no valid RS-232 signal is sensed
•Package options include plastic small-outline
(DW), shrink small-outline (DB), and thin shrink
small-outline (PW) packages
2 Applications
•Battery powered systems
•Wired Networking
•Data center and enterprise computing
•Battery-powered systems
•Notebooks
•Laptops
•Palmtop PCs
•Hand-held equipment
3 Description
The MAX3243E device consists of three line drivers,
five line receivers, and a dual charge-pump circuit
with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap
Discharge) and ±8-kV ESD (IEC61000-4-2, Contact
Discharge) protection on serial-port connection
pins. 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.
Package Information
PART NUMBERPACKAGE
(1)
BODY SIZE (NOM)
MAX3243E
SSOP (DB) (28)10,20 mm × 5,30 mm
SOIC (DW) (28)17,90 mm × 7,50 mm
TSSOP (PW) (28)9,70 mm × 4,40 mm
VQFN (RHB) (32)5,00 mm × 5,00 mm
(1)For all available packages, see the orderable addendum at
the end of the data sheet.
DIN
DOUTx
RS-232
33
POWER
AUTO-
POWERDOWN
5
5
FORCEOFF
FORCEON
RIN
RS-232
ROUT
RIN2
RS-232
ROUT2B
STATUS
INVALID
3.3 V, 5 V
TX
RX
RX
Simplified Circuit
MAX3243E
SLLS657E – APRIL 2005 – REVISED OCTOBER 2022
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | MAX3243E |
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