性能参数特点：

? 只有 42 单词指令.

? 所有指令是?个指令周期除了程序分支是两个指令周期

? 13 位宽指令.

? GOTO指令(无ROM范围限制).

? CALL 指令. (无ROM范围限制).

? 8位宽数据总线.

? 5 层深度的硬件堆栈.

? 操作速度: 石英振荡DC-20 MHz

? RC 振荡 DC-16 MHz

? 直接, 间接寻址模式存取数据.

? 8位实时clock/counter (Timer0) 以8位可编程序的预除器(prescaler) .

? 内部Power on reset (POR) .

? 内建低压探测器(low voltage detector LVD) 给 Brown out reset(BOR) 使用 .

? 电源启动重置定时器(Power-up reset timer PWRT) 和振荡启动定时器(Oscillator Start-up Timer OST) .

? 芯片内部看门狗定时器(WDT) 是使用内部振荡器以确保芯片正常运作.软件可控制看门狗的致能/除能.

? 两个 I/O 埠 IOA 和 IOB 可以独立方向控制.

? 软件可控制 I/O端口的?拉电阻,?拉电阻或开汲极.

? ?个内部?断来源: Timer0 溢位;

? 两个外在?断来源: INT脚位触发, B埠 输入变动.

? 睡眠唤醒由 INT 脚位触发或 B埠输入变动.

? 省电睡眠方式.

? 程序代码保护.

? 可选择振荡器种类:

1. ERC: 外部RC震荡。

2、HF: 高频率 Crystal/Resonator振荡器

3. XT: Crystal/Resonator振荡器 （常规震荡频率）

4. LF: 低频率Crystal/Resonator振荡器

5、IRC ：IC内部RC震荡。

6、ERIC： 外部电阻内部电容震荡。

? 操作的电压范围:

- OTP : 2.3V to 5.5V

- MASK : 2.3V to 5.5V

SPECIFICATIONS FEATURES:
? Only 42 word instructions.
? All instructions are? Instruction cycle except for program branches are two instruction cycles
? 13-bit instructions.
? GOTO instruction (ROM-limit).
? CALL instruction. (ROM-limit).
? Eight-bit wide data bus.
? Five layers deep hardware stack.
? Operating speed: DC-20 MHz crystal oscillator
? RC oscillation DC-16 MHz

  Direct, indirect addressing mode to ess the data.
? Eight real-time clock / counter (Timer0) with 8 programmable prescaler (prescaler).
? Internal Power on reset (POR).
? Built-in low-voltage detector (low voltage detector LVD) for Brown out reset (BOR) use.
? PWDT (Power-up reset timer PWRT) and oscillation starts a timer (Oscillator Start-up Timer OST).
? Chip watchdog timer (WDT) is to use the internal oscillator to ensure the normal operation of the chip. Software controls the watchdog enable / disable.
? Two I / O ports IOA and IOB direction can be independently controlled.
? Software can control I / O ports? Pull-up resistor? Pull or open drain.
?? Internal? Off Source: Timer0 overflow;
? Two external? Off Source: INT pin trigger, B port input change.
? Wake up from sleep by the INT pin trigger or B port input change.
? Saving sleep mode.
? Program code protection.
? Selectable oscillator types:
1. ERC: external RC oscillator.
2, HF: High Frequency Crystal / Resonator Oscillator
3. XT: Crystal / Resonator Oscillator (normal oscillation frequency)
4. LF: Low Frequency Crystal / Resonator Oscillator
5, IRC: IC internal RC oscillator.
6, ERIC: internal external resistor capacitor shocks.
? Operating voltage range:
- OTP: 2.3V to 5.5V
- MASK: 2.3V to 5.5V