The watchdog timer can be switched ON or OFF by WS pin. If WS pin is fixed to low, the watchdog timer will be active. (TIMING CHART D If WS pin is fixed to high, the watchdog timer will be inactive (TIMING CHART 2) When the WS pin is fixed to high, no reset signalis output, in which case only the power-on reset timer is useful.
PALCE22V10H-25PC-4 Price| | Standard'i | ·1 | ·2 | -24 | -33 |
| 80C51FA | x | x | x | x | × |
| 83C51FA | x | x | x | x | x |
| 87C51FA | x | x | x | x | × |
| 83C51FB | x | x | x | x | x |
| 87C51FB | x | x | x | x | × |
| 83C51FC | x | x | x | x | × |
| 87C51FC | X | X | X | X | × |
| | | | | |
PALCE22V10H-25PC-4 on stock| Item | Symbol | Value | Unit |
| j p· | 2SA795 | -VCBO | 150 | V |
| | 2SA795A | 180 |
| L· | 2SA795 | -VCEO | 150 | V |
| --y | 2SA795A | 180 |
| y· | - VEa0 | 5 | V |
| ]p | -ICP | 1.5 | A |
| ]p | -Ic | 1 | A |
| =u79(Tc= 25C) | Pe | 10 | W |
| | Tj | 150 | |
| | Tsw | - 55150 | |
| | | | |