组网环境：OE=H(使能)、VCCA=1.2V、VCCB=1.2V、输入端口A1pin的电平从2V到3.6V变化，观察VCCA pin以及 A1 pin流过的电流
结果：（Ipad为A1 pin的电流） 随着输入pin电压的变化，VCCA以及输入pin上的电流不变。
| VCCA | VPAD | IVCCA（mA） | IPAD(mA) |
| 1.2 | 2 | 23.44 | 23.98 |
| 2.1 | 37.43 | 38.57 | |
| 2.2 | 37.45 | 38.78 | |
| 2.3 | 37.47 | 38.79 | |
| 2.4 | 37.49 | 38.816 | |
| 2.5 | 37.51 | 38.836 | |
| 2.6 | 37.53 | 38.857 | |
| 2.7 | 37.55 | 38.88 | |
| 2.8 | 37.57 | 38.9 | |
| 2.9 | 37.59 | 38.927 | |
| 3 | 37.61 | 38.952 | |
| 3.1 | 37.63 | 38.977 | |
| 3.2 | 37.649 | 39.002 | |
| 3.3 | 37.669 | 39.027 | |
| 3.4 | 37.688 | 39.053 | |
| 3.5 | 37.707 | 39.079 | |
| 3.6 | 37.726 | 39.105 |
