M34280E1GP Overview
Description
The 4280 Group is a 4-bit single-chip microcomputer designed with CMOS technology for remote control transmitters. The 4280 Group has 7 carrier waves and enables fabrication of 8 × 7 key matrix.
Key Features
- 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
- 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
- Oscillation circuit ..................................... Ceramic resonance
- Watchdog timer
- Power-on reset circuit
- Voltage drop detection circuit ......................... Typical:1.50 V
