SH66P22A Overview
SH66P22A is a 4-bit micro controller. This chip integrates the SH6610C 4-bit CPU core with SRAM, 4K OTPROM, Timer and I/O Ports. (Schmitt trigger input) Reset input (active low, Schmitt trigger input) Ground pin Bit programmable I/O.
SH66P22A Key Features
- 6.0V (typical 3.0V or 5.0V) 22 CMOS bi-directional I/O pins 4-level subroutine nesting (including interrupts) One 8-bit
- Internal interrupt (Timer0)
- External interrupts: PortB & PortC (falling edge) Oscillator (OTP option)
- X`tal oscillator: 32.768KHz
- Ceramic resonator: 400K
- RC oscillator : 400K
- External clock: 30K
- 4MHz Instruction cycle time
- 4/32.768KHz(122us) for 32.768KHz OSC clock
- 4/4MHz (1us) for 4MHz OSC clock Two low power operation modes: HALT and STOP Built-in watch dog timer (OTP option) Built
