MAX3223CAP+TG65

Overview

The MAX3223CAP+TG65 is a dual-driver, dual-receiver RS-232 transceiver from the MAX3221/MAX3223/MAX3243 family. It operates on a single +3.0V to +5.5V supply and features AutoShutdown technology that reduces supply current to 1µA when no valid signal is detected on receiver inputs for 30µs. The device integrates a high-efficiency dual charge pump requiring only 0.1µF capacitors for 3.3V operation. It supports full-duplex communication with a guaranteed data rate of 120kbps and typical rates up to 235kbps. The component is housed in a 20-pin SSOP package and is rated for an operating temperature range of 0°C to +70°C.

Feature Summary

• AutoShutdown feature automatically disables onboard power supplies and drivers to achieve 1µA standby current when valid RS-232 signals are absent.
• Integrated dual charge-pump circuitry generates required ±5.5V levels from a single low-voltage supply without external ±12V sources.
• Provides true RS-232 performance compatibility with CMOS logic families across the specified voltage range.

Applications

• Battery-powered equipment
• Hand-held devices
• Portable diagnostics equipment

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and RoHS compliance status. Confirm availability through authorized distributors as product lifecycle status may vary. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component for applications requiring low-power RS-232 connectivity with minimal external capacitor requirements. Verify that the 0°C to +70°C commercial temperature range meets system constraints. Consider the MAX3223EAP+ variant if extended industrial temperature operation (-40°C to +85°C) is necessary.

Part Context

This part belongs to the MAX3221/MAX3223/MAX3243 series of 3V-powered EIA/TIA-232 transceivers. The MAX3223 specifically provides two drivers and two receivers in a 20-pin configuration. It shares core functionality with the MAX3221 (1/1) and MAX3243 (3/5), differing primarily in channel count and package options within the same family architecture.

Replacement Considerations

MAX3223EAP+