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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 2/2 20TQFN
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Series：-
- Type：Transceiver
- Protocol：RS232
- Number of Drivers/Receivers：2月2日
- Duplex：Full
- Data Rate：1Mbps
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-WQFN Exposed Pad
- Supplier Device Package：20-TQFN (5x5)
- Receiver Hysteresis：500 mV
- Grade：-
- Qualification：-
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Overview
The MAX3225EETP+T is a dual RS-232 transceiver from the MAX3224–MAX3227 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.0V to +5.5V supply and guarantees a data rate of 1Mbps. The device features AutoShutdown Plus technology, reducing supply current to 1µA when inputs are inactive for over 30 seconds. It includes two drivers and two receivers with full-duplex communication capability. The component is housed in a 20-pin TQFN package (5mm x 5mm) with an exposed pad and supports surface-mount installation.
Feature Summary
- AutoShutdown Plus functionality automatically reduces power consumption by shutting down charge pumps during periods of inactivity.
- MegaBaud operation ensures reliable high-speed data transmission up to 1Mbps for demanding applications.
- Integrated dual charge pump generates required RS-232 voltage levels using only four small capacitors.
Applications
- Notebook, subnotebook, and palmtop computers
- Cellular phones and handheld equipment
- Battery-powered peripherals and printers
Procurement Notes
Verify the specific suffix EETP+T corresponds to the 20-TQFN (5x5) package with an exposed pad and tape-and-reel packaging configuration. Confirm that the 'E' designation indicates the extended temperature range of -40°C to +85°C. Ensure the '+' suffix confirms lead-free and RoHS compliance status as per manufacturer specifications.
Selection Notes
Select this component when a 1Mbps data rate is required compared to the 250kbps alternative. Choose the TQFN package for space-constrained designs requiring a compact footprint. Verify that the system requires the specific AutoShutdown Plus wake-up behavior and 1µA standby current characteristics provided by this model.
Part Context
This part belongs to the MAX3224–MAX3227 series of low-power RS-232 transceivers. It shares the same functional architecture as the MAX3224, MAX3226, and MAX3227 but is distinguished by its guaranteed 1Mbps data rate capability. The family utilizes Maxim's proprietary low-dropout transmitter output stage for true RS-232 performance.
Replacement Considerations
The MAX3227EETP+T offers identical pinout and functionality with the same 1Mbps speed. The MAX3225ECUP+T provides the same electrical performance in a TSSOP-20 package instead of TQFN. The MAX3225CPP+ is a legacy PDIP version of the same core device.
