M34280E1FP
DESCRIPTION
The 4280 Group is a 4-bit single-chip microputer designed with CMOS technology for remote control transmitters. The 4280 Group has 7 carrier waves and enables fabrication of 8 × 7 key matrix.
FEATURES
- Number of basic instructions 62
- Minimum instruction execution time 8.0 µs
(at f(XIN) = 4.0 MHz, system clock = f(XIN)/8, VDD=3.0 V)
- Supply voltage 1.8 V to 3.6 V
- Subroutine nesting 4 levels
- Timer
Timer 1 8-bit timer with a reload register and carrier wave output auto-control function
- Carrier wave output function (port CARR) f(XIN), f(XIN)/4, f(XIN)/8, f(XIN)/12 f(XIN)/64, f(XIN)/96, “H” output fixed
- Logic operation function (XOR, OR, AND)
- RAM back-up function
- Key-on wakeup function (ports D7, E0- E2, G0- G3)...
