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MAX3225ECPP View Datasheet(PDF) - Maxim Integrated

Part Name
Description
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MAX3225ECPP Datasheet PDF : 21 Pages
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AVAILABLE
MAX3224E/MAX3225E/
MAX3226E/MAX3227E/
MAX3244E/MAX3245E
±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
________________General Description
The MAX3224E/MAX3225E/MAX3226E/MAX3227E/
MAX3244E/MAX3245E are 3V-powered EIA/TIA-232
and V.28/V.24 communications interfaces with automat-
ic shutdown/wakeup features, high data-rate capabili-
ties, and enhanced electrostatic discharge (ESD)
protection. All transmitter outputs and receiver inputs
are protected to ±15kV using IEC 1000-4-2 Air-Gap
Discharge, ±8kV using IEC 1000-4-2 Contact Discharge,
and ±15kV using the Human Body Model.
All devices achieve a 1µA supply current using Maxim’s
revolutionary AutoShutdown Plus™ feature. These
devices automatically enter a low-power shutdown
mode when the RS-232 cable is disconnected or the
transmitters of the connected peripherals are inactive,
and the UART driving the transmitter inputs is inactive
for more than 30 seconds. They turn on again when
they sense a valid transition at any transmitter or receiv-
er input. AutoShutdown Plus saves power without
changes to the existing BIOS or operating system.
The MAX3225E/MAX3227E/MAX3245E also feature
MegaBaud™ operation, guaranteeing 1Mbps for high-
speed applications such as communicating with ISDN
modems. The MAX3224E/MAX3226E/MAX3244E guar-
antee 250kbps operation. The transceivers have a pro-
prietary low-dropout transmitter output stage enabling
true RS-232 performance from a +3.0V to +5.5V supply
with a dual charge pump. The charge pump requires
only four small 0.1µF capacitors for operation from a
3.3V supply. The MAX3224E–MAX3227E feature a logic-
level output (READYF) uthnatcatsisoenrtsawl hDeinatgherachmarsge
pump is regulating and the device is ready to begin
transmitting.
All devices are available in a space-saving TQFN,
SSOP, and TSSOP (MAX3224E/MAX3225E/MAX3244E/
MAX3245E) packages.
________________________Applications
Notebook, Subnotebook, and Palmtop Computers
Cellular Phones
Battery-Powered Equipment
Hand-Held Equipment
Peripherals
Printers
__Next Generation Device Features
For Space-Constrained Applications:
MAX3228E/MAX3229E: ±15kV ESD-Protected,
+2.5V to +5.5V, RS-232 Transceivers in UCSP™
MAX3222E/MAX3232E/MAX3241E/MAX3246E:
±15kV ESD-Protected, Down to 10nA, +3.0V to
+5.5V, Up to 1Mbps, True RS-232 Transceivers
(MAX3246E Available in UCSP)
For Low-Voltage or Data Cable Applications:
MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,
2Tx/2Rx RS-232 Transceivers with ±15kV
ESD-Protected I/O and Logic Pins
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX3224ECTP+
0°C to +70°C 20 TQFN-EP*
MAX3224ECUP+
0°C to +70°C 20 TSSOP
MAX3224ECAP+
0°C to +70°C 20 SSOP
MAX3224ECPP+
0°C to +70°C 20 Plastic DIP
MAX3224EETP+
-40°C to +85°C 20 TQFN-EP*
MAX3224EEUP+
-40°C to +85°C 20 TSSOP
MAX3224EEAP+
-40°C to +85°C 20 SSOP
MAX3224EEPP+
-40°C to +85°C 20 Plastic DIP
MAX3224EAAP+ -40°C to +125°C 20 SSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Ordering Information continued at end of data sheet.
_____________________ Selector Guide
PART
NO. OF
DRIVERS/
RECEIVERS
GUARANTEED
DATA RATE
(bps)
READY
OUTPUT
Auto-
Shutdown
Plus
MAX3224E
2/2
MAX3225E
2/2
MAX3226E
1/1
MAX3227E
1/1
MAX3244E
3/5
MAX3245E
3/5
250k
1M
250k
1M
250k
1M
Pin Configurations appear at end of data sheet.
FAuuntoctSiohuntadloDwiangPralums,s McoengtainBuaeudd,atanedndUoCfSdPataarsehteraedt.emarks of
UMCaSxPimisInatetrgardaetemdaPrkroodfuMcatsx,imIncIn. tegrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1339; Rev 10; 3/11
 

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