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MAX3244

Maxim
Part Number MAX3244
Manufacturer Maxim
Description RS-232 Transceivers
Published Jun 13, 2005
Detailed Description MAX3224–MAX3227/ AVAILABLE MAX3244/MAX3245 1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShut...
Datasheet PDF File MAX3244 PDF File

MAX3244
MAX3244

Overview
MAX3224–MAX3227/ AVAILABLE MAX3244/MAX3245 1µA Supply Current, 1Mbps, 3.
0V to 5.
5V, RS-232 Transceivers with AutoShutdown Plus ________________General Description The MAX3224–MAX3227/MAX3244/MAX3245 are 3Vpowered EIA/TIA-232 and V.
28/V.
24 communications interfaces with automatic shutdown/wakeup features and high data-rate capabilities.
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 receiver input.
AutoShutdown Plus saves power without changes to the existing BIOS or operating system.
The MAX3225/MAX3227/MAX3245 also feature MegaBaud™ operation, guaranteeing 1Mbps for highspeed applications such as communicating with ISDN modems.
The MAX3224/MAX3226/MAX3244 guarantee 250kbps operation.
The transceivers have a proprietary low-dropout transmitter output stage enabling true RS232 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 MAX3224–MAX3227 feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.
All devices are available in a space-saving TQFN, TSSOP, and SSOP packages.
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end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
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