• 8051 like Microcontroller in a 72 pin SIMM
• 160K Flash, 32K battery Backed SRAM
• Speed 0 to 40 MHz (crystal required)
• Compatible with DS2251 T
• RoHS Compliant

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The ST2251 is a powerful microcontroller 'stick' with RTC, battery-backed RAM, dual UART, 40 configurable I/O, low power mode, and many other features.