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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 3/5 28SSOP
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Series：-
- Type：Transceiver
- Protocol：RS232
- Number of Drivers/Receivers：3月5日
- Duplex：Full
- Data Rate：1Mbps
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：28-SSOP
- Receiver Hysteresis：500 mV
- Grade：-
- Qualification：-
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Overview
The MAX3245ECAI+T is a single-supply RS-232 transceiver manufactured by Analog Devices/Maxim Integrated. It features three drivers and five receivers, supporting data rates up to 1Mbps. The device operates from a +3.0V to +5.5V supply with a typical operating current of 1mA in active mode and 1µA in shutdown. It utilizes AutoShutdown Plus technology to automatically enter low-power mode when inputs are inactive for over 30 seconds. The component is housed in a 28-pin SSOP package and supports full-duplex communication.
Feature Summary
- AutoShutdown Plus functionality enables automatic power-down and wake-up based on input activity.
- MegaBaud operation guarantees high-speed data transmission at 1Mbps.
- Integrated dual charge pump generates required voltage levels using only four small capacitors.
- Provides an INVALID output signal to detect valid RS-232 receiver input levels.
Applications
- Notebook, subnotebook, and palmtop computers
- Cellular phones and handheld equipment
- Battery-powered peripherals and printers
Procurement Notes
Verify the specific ordering suffix 'CAI' corresponds to the SSOP-28 package and industrial temperature range (-40°C to +85°C). Confirm that the '+T' designation indicates tape-and-reel packaging. Ensure compatibility with existing BIOS or operating systems as the AutoShutdown feature requires no software changes.
Selection Notes
Select this model for applications requiring 1Mbps data rates and low standby power. The MAX3245 differs from the MAX3244, which is limited to 250kbps. Consider the R2OUTB pin for ring indicator monitoring if UARTs must be powered down during shutdown. Verify capacitor requirements based on the specific VCC voltage used in the design.
Part Context
This component belongs to the MAX3224–MAX3227/MAX3244/MAX3245 family of 3V-powered EIA/TIA-232 interfaces. It shares the AutoShutdown Plus architecture with other members like the MAX3244 but offers higher speed capabilities. The family is designed for space-saving UCSP packages and low-voltage operation.
Replacement Considerations
The MAX3244EAI+T is a compatible alternative within the same family but is guaranteed for 250kbps operation rather than 1Mbps. Other family members such as the MAX3225EAI+T also support 1Mbps speeds but may have different driver/receiver counts or package options.
