SN8P2234是一個8位元微控制器。結構獨特,採用CMOS技術,具有低功耗、高性能的特點。
SN8P2234的IC結構設計一流,包括一個大容量(8K-word)的程式記憶體(OTP ROM),512-byte的資料記憶體與8層堆疊暫存器。一個8位基本計時器T0、一個16位元基本計時器T1,一個看門狗計時器,7個中斷源(T0, T1, SIO, USB, Wakeup, INT0, INT1),SIO傳輸介面以及全速USB傳輸介面。
OTP ROM size: 8K × 16 bits RAM size: 512 × 8 bits 8-levels stack buffer Bi-directional: P0, P1, P2, P3, P5 Wakeup: P0, P1 Pull-up resisters: P0, P1, P2, P3, P5 External interrupt: P0.0, P0.1 Five internal interrupts: T0, T1, USB, SIO, Wakeup Two external interrupts: INT0, INT1 One SIO function for data transfer Support full speed USB
2.0 specification The USB SIE support one control endpoint, four interrupt endpoints and two ISO endpoints. Single power supply:
4.0V
5.5V On-chip watchdog timer On chip regulator with
3.3V output voltage External high clock: Crystal 6 MHz/12MHz