PXAG37KFBD,157

Microcontrollers Overview

The PXAG37KFBD,157 is a member of the XA-G37 microcontroller family, featuring a 16-bit CPU with a 20-bit address range. It integrates 32K bytes of One Time Programmable (OTP) EPROM program memory and 512 bytes of static RAM. The device supports operation within a voltage range of 2.7 V to 5.5 V and includes three counter/timers, a watchdog timer, two enhanced UARTs, and four 8-bit I/O ports. It is housed in a 44-pin LQFP package and operates across a temperature range of -40 °C to +85 °C.

Microcontrollers Feature Summary

• Supports upward compatibility with 80C51 architecture while providing higher performance for embedded applications.
• Features an enhanced instruction set tailored for high-level language support and multi-tasking operating systems.
• Includes programmable output configurations for four 8-bit I/O ports.

Microcontrollers Applications

• High-performance embedded control applications
• Systems requiring upward compatibility from 80C51 codebases

Microcontrollers Procurement Notes

Verify that the specific ordering suffix ',157' corresponds to the correct packaging and environmental compliance details as defined in the official datasheet. Confirm that the OTP nature of the memory requires appropriate programming procedures before deployment. Ensure the selected package type matches the design requirements for thermal management and physical footprint constraints.

Microcontrollers Selection Notes

Select this component when a 16-bit architecture is required alongside legacy 80C51 software compatibility. Consider the 32K OTP capacity and 512-byte RAM limits against application memory needs. Evaluate the need for external bus expansion capabilities provided by the multiplexed address/data lines on Port 0 and Port 2.

Microcontrollers Part Context

This part belongs to the Philips Semiconductors XA (eXtended Architecture) family of 16-bit single-chip microcontrollers. The XA architecture offers speeds significantly faster than standard 80C51 devices while maintaining instruction set compatibility. This specific model provides a cost-effective solution for high-volume applications needing extended memory addressing.

Microcontrollers Replacement Considerations

Check for other variants within the XA-G37 family, such as the PLCC package versions or different temperature grades, if the current package or rating does not suit the assembly process.