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Product Detailed Parameters
- Description：IC RS-232 DRVR/RCVR 44-PLCC
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Series：*
- Type：-
- Protocol：-
- Number of Drivers/Receivers：-
- Duplex：-
- Data Rate：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Receiver Hysteresis：-
Download product information
Overview
The MAX244EQH+D is a +5V-powered, multichannel RS-232 transceiver from the MAX220–MAX249 family. It integrates eight drivers and ten receivers in a PLCC-44 package. The device operates on a single +5V supply by utilizing internal charge-pump circuitry to generate ±10V for RS-232 signaling. It supports data rates up to 120 kbps with a typical propagation delay of 3.5 µs. The component provides full-duplex communication and features an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrates dual charge-pump DC-DC voltage converters to eliminate the need for external bipolar supplies.
- Provides high channel density with eight drivers and ten receivers within a single integrated circuit.
- Supports full-duplex operation compatible with EIA/TIA-232E and V.28/V.24 standards.
Applications
- Multidrop RS-232 networks
- Interface translation between TTL/CMOS logic and RS-232 levels
- Portable diagnostics equipment
Procurement Notes
Verify the specific suffix 'QH' against the manufacturer's current ordering information table to confirm the exact package variant and temperature grade. Ensure that the lead-free status aligns with project requirements. Cross-reference the part number with official distributor databases to confirm availability and lifecycle status before finalizing procurement plans.
Selection Notes
Select this component when a design requires a high number of serial channels without consuming excessive board space. It is suitable for applications where generating negative voltages externally is undesirable. Verify that the required data rate does not exceed 120 kbps and that the system can accommodate the PLCC-44 footprint.
Part Context
This part belongs to the MAX220–MAX249 family of line drivers and receivers designed for standard serial communications interfaces. The family offers various configurations ranging from dual-channel to multi-channel devices. The MAX244 specifically addresses designs needing extensive serial connectivity in a compact surface-mount package.
Replacement Considerations
Consider the MAX244CPE or MAX244ESE for alternative package options such as Plastic DIP or Wide SOIC. Other members of the MAX220–MAX249 family may serve as functional substitutes if channel counts differ but electrical characteristics remain compatible.
