SH6631A
Mask 4-bit Microcontroller
Features
SH6610C-based single-chip 4-bit micro-controller ROM: 1024 X 16 bits ROM RAM: 48 X 4 bits RAM (Data Memory) Operation
voltage: 1.
8V – 3.
6V (Typically 3.
0V) 14
CMOS bi-directional I/O pins 4-level subroutine nesting (including interrupts) One 8-bit auto re-loadable timer/counter Warm-up timer for power-on reset Powerful interrupt sources: - Internal interrupt (Timer0).
- External interrupts: PortB & PortC (Falling edge).
Built-in remote control carrier synthesizer FOSC/8 or FOSC/12 by software option Oscillator Ceramic resonator: 400K - 4MHz.
Instruction cycle time:
- 4/455KHz ( ≈ 8.
79µs) for 455KHz OSC clock
- 4/3.
64MHz ( ≈ 1.
1µs) for 3.
64MHz OS...