MAX3243
PRODUCTION+3V to +5.5V RS-232 Transceivers with AutoShutdown
- Part Models
- 16
- 1ku List Price
- Starting From $2.70
Overview
- Integrated Charge Pump Circuitry Simplifies Power Requirements
- Eliminates the Need for a ±12V Supply
- Operation From a Single +3.3V or +5V Supply
- 1µA Supply Current in Shutdown Mode Saves Power
- AutoShutdown Feature is Enabled After No Activity on Receiver Inputs for 30μs
- Software Control Option for Shutdown
The MAX3221/MAX3223/MAX3243 achieve 1µA supply current with Maxim’s revolutionary AutoShutdown™ feature. When the MAX3221/MAX3223/MAX3243 do not sense a valid signal level on their receiver inputs, the on-board power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS-232 receiver input.
The MAX3221/MAX3223/MAX3243 require only 0.1µF capacitors in 3.3V operation, and can operate from input voltages ranging from +3.0V to +5.5V.
A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply.
The MAX3221 is a 1-driver/1-receiver 16-pin SSOP version of the 20-pin 2-driver/2-receiver MAX3223.
The MAX3243 is a 3-driver/5-receiver with a complementary always-active receiver for external monitoring in a variety of 28 pin packages. Please see order information table for package offerings.
Applications
- Battery-Powered Equipment
- Hand-Held Equipment
- Peripherals
- Portable Diagnostics Equipment
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX3243CAI+ | SSOP | ||
| MAX3243CAI+T | SSOP | ||
| MAX3243CUI+ | Thin Shrink Small-Outline Package | ||
| MAX3243CUI+T | Thin Shrink Small-Outline Package | ||
| MAX3243CWI+ | SOIC_W | ||
| MAX3243CWI+T | SOIC_W | ||
| MAX3243EAI+ | SSOP | ||
| MAX3243EAI+T | SSOP | ||
| MAX3243ECAI+ | SSOP | ||
| MAX3243ECAI+T | SSOP | ||
| MAX3243ECUI+ | Thin Shrink Small-Outline Package | ||
| MAX3243ECUI+T | Thin Shrink Small-Outline Package | ||
| MAX3243ECWI+ | SOIC_W | ||
| MAX3243EUI+ | Thin Shrink Small-Outline Package | ||
| MAX3243EUI+T | Thin Shrink Small-Outline Package | ||
| MAX3243EWI+ | SOIC_W |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 18, 2018 - 1658A ASSEMBLY |
||
| MAX3243ECAI+ | PRODUCTION | |
| MAX3243ECAI+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.