DESCRIPTION
SC9308 is a SOC based on Silan’s 8-bit MCU SC65X for analog radio DFR control with low voltage low power consumption. Built-in LCD driver which can drive max. 4X14 segments display, 31 configurable I/O ports and three 8-bit counters, two of which can be combined to achieve 16 timing length; Built-in real time clock ensures the system uninterrupted counting when it is in sleep state; 11 interrupt sources, including four external interrupts, enabling the system to respond quickly to internal or external events. Multi-mode optional serial communication circuits greatly increase the system's scalability. Built-in 3.2MHz RC oscillator with external 75KHz oscillator can achieve the perfect balance between power and speed. In high speed application, it can extend external high frequency crystal through PC.4/5 pin, maximum up to 6MHz.

FEATURES
* Memory
384-byte data memory
8K-byte program memory (OTP)
* I/O configuration
General-purpose I/O: 17 pins with pull up resistor;
SEG: also can be used as I/O.
* LCD controller/driver
Drive 7 words display max.
14 SEG x 4 COM
Display mode: duty, bias can be programmable
* 8-bit timer/counter T0/T1/T2
Timing time can be set by program
External events counting
Arbitrary clock frequency output
T0/T1 can be 16-bit counter
* Operating voltage range: 3.0~3.6V
* Clock source
External clock source: 75KHz Crystal
Built-in RC oscillator: 3.2MHz;
Extension Crystal: 2~6MHz(VDD>2.4V@4MHz
* RTC
Year/month/day display
Provide BCD code data directly
Leap year auto adjust
Timing alarm
* Local oscillator frequency counting circuit
Local oscillator:
FM frequency range: 30MHz~150MHz
AM frequency range: 0.5MHz~30MHz
Counter: 16-bit, gate time 1/4/8ms
* Built-in voltage reference
VREF=1.23V±5%