FAMILY DESCRIPTION
The Philips Semiconductors XA (eXtended Architecture) family of 16-bit single-chip microcontrollers is powerful enough to easily handle the requirements of high performance embedded applications, yet inexpensive enough to compete in the market for high-volume, low-cost applications.

SPECIFIC FEATURES OF THE XA-G37
• 20-bit address range, 1 megabyte each program and data space. (Note that the XA architecture supports up to 24 bit addresses.)
• 2.7 V to 5.5 V operation
• 32K bytes on-chip EPROM program memory
• 512 bytes of on-chip data RAM
• Three counter/timers with enhanced features (equivalent to 80C51 T0, T1, and T2)
• Watchdog timer
• Two enhanced UARTs
• Four 8-bit I/O ports with 4 programmable output configurations
• 44-pin PLCC and 44-pin LQFP packages