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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 1/1 16SSOP
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Series：-
- Type：Transceiver
- Protocol：RS232
- Number of Drivers/Receivers：1月1日
- Duplex：Full
- Data Rate：250kbps
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：16-SSOP
- Receiver Hysteresis：500 mV
- Grade：-
- Qualification：-
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Overview
The MAX3221ECDBR is a Texas Instruments RS-232 transceiver designed for single-supply operation from 3.0 V to 5.5 V. It integrates charge pumps that generate the required positive and negative voltages for RS-232 signal driving using only external 0.1 µF capacitors. The device features one driver and one receiver, supporting data rates up to 120 kbps. It includes ESD protection exceeding ±15 kV according to the Human Body Model. The EC suffix indicates compliance with the European Community RoHS directive and green packaging standards.
Feature Summary
- Single-supply operation capability within the 3.0 V to 5.5 V range
- Integrated charge pump circuitry eliminating the need for dual voltage supplies
- High electrostatic discharge tolerance on all pins
Applications
- Portable equipment requiring low power consumption
- Modems and fax machines
- PDA and handheld devices
Procurement Notes
Verify the specific package variant (DBR) corresponds to the SSOP-16 configuration in official datasheets. Confirm the EC suffix denotes RoHS compliance and lead-free status as per manufacturer specifications. Ensure the operating temperature range aligns with industrial requirements before procurement.
Selection Notes
Select this component when a single 3 V to 5.5 V supply is available and only one transmit and receive channel is needed. It is suitable for applications prioritizing low quiescent current and minimal external component count. Verify that the 120 kbps data rate meets system timing constraints.
Part Context
This part belongs to the MAX322x family of RS-232 drivers and receivers. It shares functional similarities with other members like the MAX3222 or MAX3223 but differs in the number of channels and pin configurations. The DBR package identifies it as a small-outline shrink package variant.
Replacement Considerations
Direct substitutes include the MAX3221EIDBRE4 or MAX3221ECPE. Verify pin compatibility and electrical parameters against the original design requirements before substitution.
