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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 3/5 20SSOP
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Series：-
- Type：Transceiver
- Protocol：RS232
- Number of Drivers/Receivers：3月5日
- Duplex：Full
- Data Rate：230kbps
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：20-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：20-SSOP
- Receiver Hysteresis：650 mV
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Overview
The MAX3185CAP is a complete DTE RS-232 serial port designed for desktop PC and motherboard applications. It features three transmitters and five receivers without requiring an internal charge pump. The device guarantees data rates up to 230kbps and operates within a temperature range of 0°C to +70°C. Electrical characteristics include VCC supply voltage from +4.5V to +5.5V, VDD from +10.8V to +13.2V, and VSS from -10.8V to -13.2V. It is housed in a 20-pin SSOP package.
Feature Summary
- Enhanced ESD protection withstanding ±15kV Human Body Model and ±8kV IEC1000-4-2 Contact Discharge
- Pin and functionally compatible with the industry-standard 75185
- Flow-through pinout architecture simplifies PCB layout
- Latchup-free operation during electrostatic discharge events
Applications
- Desktop PC motherboards
- Instruments meeting IEC1000-4-2 standards
- Equipment requiring EMC compliance
Procurement Notes
Verify the specific suffix CAP indicates the commercial temperature range (0°C to +70°C) and SSOP package configuration. Confirm that the ordering information matches the required operating conditions and physical footprint before finalizing procurement decisions.
Selection Notes
Select this component when designing systems requiring robust ESD protection without external components. Ensure the design supports the necessary dual-rail power supplies (+12V/-12V) as the device lacks an integrated charge pump. Verify compatibility with existing TTL/CMOS logic levels.
Part Context
The MAX3185 series provides RS-232 serial port functionality optimized for high ESD immunity. This specific part number represents the commercial grade variant packaged in a shrink small-outline format. It serves as a direct replacement for legacy interface chips while offering superior static discharge tolerance.
Replacement Considerations
The MAX3185 is pin-compatible with the SN75C185. Designers can migrate existing designs to this component to achieve immediate EMC compliance without altering the board layout or pin connections.
