详细说明：

The SN8P2501B is a RISC-like high performance and low power consumption 8-bit micro-controller. One clock per instruction cycle (1T) architecture will provide up to 16MIPS computation power. Also, the high EFT (Electrical Fast Transients) protection capability let this device is suitable for high noisy industrial application. The device is designed with the excellent IC structure including the program memory up to 1K-word OTP ROM, data memory of 48-bytes RAM, Two 8-bit timer (T0, TC0), a watchdog timer, three interrupt sources (T0, TC0, INT0), and 4-level stack buffers. Besides, user can choose desired oscillator configuration for the controller. There are four external oscillator configurations to select for generating system clock, including High/Low speed crystal, ceramic resonator or cost-saving RC. This device also includes an internal 16MHz RC oscillator for system clock and includes an internal low frequency RC oscillator for slow mode controlled by programming.

OTP ROM size: 1K * 16 bits.
RAM size: 48 * 8 bits.
Four levels stack buffer
Bi-directional: P0, P1, P2, P5.
Input only: P1.1.
Programmable open-drain: P1.0.
Wakeup: P0, P1 level change trigger
Pull-up resisters: P0, P1, P2, P5.
External Interrupt trigger edge:P0.0 controlled by PEDGE register.
External high clock: RC type up to 10 MHz
External high clock: Crystal type up to 16 MHz
Internal high clock: 16MHz RC type.
Internal low clock: RC type 16KHz(3V), 32KHz(5V)
3-Level LVD.
Three interrupt sources.
Two 8-bit Timer/Counter.
On chip watchdog timer and clock source is internal low clock RC type (16KHz @3V, 32KHz @5V).
Powerful instructions,One clocks per instruction cycle (1T).

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 MCU SN8P2308 SN8P2501A SN8P2501B SN8P26L32 SN8P26L321 SN8P26L34 SN8P01 SN8P13 SN8P2201 SN8P2202 SN8P2203 SN8P2204 SN8P2212 SN8P22121 SN8P2213 SN8P2234 SN8P2236 SN8P2238 SN8P1808 SN8P1829 SN8P2808 SN8P1907 SN8P1908 SN8P1909 SN8P1917 SN8P1919 SN8P1927 SN8P1702A SN8P1703A SN8P1704 SN8P1706 SN8P1707 SN8P1708 SN8P2704A SN8P2705A SN8P2706A SN8P2707A SN8P2708A SN8P2711 SN8P2714 SN8P27142 SN8P27143 SN8P2715 SN8P2722 SN8A2617 SN8P1602B SN8P2602A SN8P2602B SN8P2604 SN8P26042 SN8P2604A SN8P2606 SN8P2608 SN8P2611 SN8P2612 SN8P2613 SN8P2614 SN8P2622 SN8P2624 

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