SH66P20A Description
SH66P20A is a 4-bit microcontroller. This chip integrates the SH6610C 4-bit CPU core with SRAM, 1K program ROM, Timer and I/O Port. OTP 1024 X 16BIT DATA RAM 64 X 4BIT GND VDD T0 Pin Description Pin No.
SH66P20A Key Features
- 6.0V (Typical 3.0V or 5.0V) 12 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 (user option)
- X`tal oscillator: 32.768KHz ~ 4MHz
- Ceramic resonator: 400K ~ 4MHz
- RC oscillator: 400K ~ 4MHz
- 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 OTP type Code protection Built-in watchdo