TMP47P202VP Features
　　4-bit single chip microcomputer
　　Instruction execution time: 1.3 (at 6MHz)
　　Low voltage operation: 2.2V (at 2MHz RC)
　　89 basic instructions
　　- Instruction set is the same as TLCS-47 series
　　ROM table look-up instructions
　　Subroutine nesting: 15 levels max.
　　5 interrupt sources (External: 2, Internal: 3)
　　- All sources have independent latches each, and multiple interrupt control is available
　　I/O port (11 pins)http://www.pcbtax.com
　　12-bit Timer/Counters (TC2)
　　- Timer, event counter, and pulse width measurement mode
　　12-bit programmable Timer (TC1)
　　Interval Timer
　　High current outputs
　　- LED direct drive capability: typ. 20mA x 4 bits (Port R4)
　　Hold function
　　- Battery/Capacitor back-up
　　Real Time Emulator: BM4721A + BM1160 (for DIP)