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Sundance SMT224 System Service TRAM

• Size 1 system services TRAM
• 40 bits of digital I/O
• Four, 8-bit, counter/timers
• Watchdog interface and RTC
• Silicon serial number 'dongle'

Using a Z80 compatible microcontroller the SMT224 offers the following:- five 8-bit wide TTL I/O lines which may be used as 34 TTL I/O lines, three timer/counter outputs, four external clock/trigger inputs, a watchdog output signal, a real-time clock (RTC), software key (for protection etc.) and 32KBytes of SRAM as a data buffer between the MCU and the two C011 link adaptors. Five of the TTL I/O lines are committed, three for interfacing the RTC and two for the silicon serial number device. The RTC provides time, day, date with leap year compensation, a 24byte scratch pad RAM and may be battery backed.

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