Features: Memory configuration
OTP ROM size: 4K * 16 bits
RAM size: 256 * 8 bits (bank 0 and bank 1)
LCD RAM size: 24 * 3 bits
I/O pin configuration
Input only: P0, P3
Output only: P2 shared with LCD segment
Bi-directional: P1, P4, P5, P6
Wakeup: P0, P1
Pull-up resisters: P0, P1, P3, P4, P5, P6
External interrupt: P0
Port 3 shared with LCD segment
All LCD pins shared with the I/O pins
59 powerful instructions
Four clocks per instruction cycle
All of instructions are one word length.
Most of instructions are one cycle only.
Maximum instruction cycle is two.
All ROM area JMP instruction.
All ROM area lookup table function (MOVC)
Support hardware multiplier (MUL). Seven interrupt sources
Four internal interrupts: T0, TC0, TC1, SIO
Three external interrupts: INT0, INT1, INT2
A real time clock timer
An 8-bit basic timer with green mode wakeup function
Two 8-bit timer counters with PWM or buzzer
On chip watchdog timer
Eight levels stack buffer
An 8-channel ADC with 8-bit/12-bit resolution
SIO function
LCD driver: 1/3 duty, 1/2 bias. 3 common * 24 segment
Dual clock system offers four operating modes
External high clock: RC type up to 10 MHz
External high clock: Crystal type up to 16 MHz
External Low clock: Crystal 32768Hz
Normal mode: Both high and low clock active.
Slow mode: Low clock only.
Sleep mode: Both high and low clock stop.
Green mode: Periodical wakeup by timer.
Package Chip form: LQFP 64 pinsPinout
Specifications(All of the voltages referenced to Vss)
Supply voltage (Vdd)............................ - 0.3V ~ 6.0V
Input in voltage (Vin)........................Vss - 0.2V ~ Vdd + 0.2V
Operating ambient temperature (Topr)..................-20°C ~ + 70°C
Storage ambient temperature (Tstor).................-30°C ~ + 125°C
Power consumption (Pc)...............................500 mWDescriptionThe SN8P1800 is an series of 8-bit micro-controller including SN8P1808. This series is utilized with CMOS technology fabrication and featured with low power consumption and high performance by its unique electronic structure.
These chips SN8P1808 are designed with the excellent IC structure including the large program memory OTP ROM, the massive data memory RAM, one 8-bit basic timer (T0), two 8-bit timer counters (TC0, TC1), high performance of real time clock timer (RTC) , a watchdog timer, up to seven interrupt sources (T0, TC0, TC1, SIO, INT0, INT1, INT2), an 8-channelADC converter with 8-bit/12-bit resolution, two channel PWM output (PWM0, PWM1), tw0 channel buzzer output (BZ0, BZ1) and 8-level stack buffers.
Besides, the user can choose desired oscillator configurations for the controller. There are four oscillator configurations to select for generating system clock, including High/Low speed crystal, ceramic resonator or cost-saving RC.SN8P1808 series is a dual clock system using a hi-speed crystal for normal mode operation and an external low speed crystal for slow mode, real time clock and LCD function.
SN8P1808 Data Sheet
