"SH69P25 is a 4-bit micro controller. This chip integrates the SH6610C 4-bit CPU core with SRAM, 4K OTPROM, Timer and I/O Ports.

Features:

SH6610C-based single-chip 4-bit micro-controller
OTPROM: 4096 X 16 bits
RAM: 160 X 4 bits (data memory)
Operation voltage: 2.4V - 6.0V (typical 3.0V or 5.0V)
22 CMOS bi-directional I/O pins
Built in pull-up and pull-low resistor for PortA ~ PortF
4-level subroutine nesting (including interrupts)
One 8-bit auto re-load timer/counter
Warm-up timer for power on reset
Powerful interrupt sources:
- Internal interrupt (Timer0)
- External interrupts: PortB & PortC (rising/falling edge)
Oscillator (OTP 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
Built-in watch dog timer (OTP option)
Built-in power on reset
Two LPD level(OTP option)
- High level: 4.0V
- Low level: 2.5V
OTP type &Code protection

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