VCCA |
1 |
A1 |
— |
Supply Voltage A |
VCCB |
8 |
A2 |
— |
Supply Voltage B |
GND |
4 |
D1 |
— |
Ground |
A1 |
2 |
B1 |
I/O |
Output or input depending on state of DIR. Output level depends on VCCA. |
A2 |
3 |
C1 |
I/O |
Output or input depending on state of DIR. Output level depends on VCCA. |
B1 |
7 |
B2 |
I/O |
Output or input depending on state of DIR. Output level depends on VCCB. |
B2 |
6 |
C2 |
I/O |
Output or input depending on state of DIR. Output level depends on VCCB. |
DIR |
5 |
D2 |
I |
Direction Pin, Connect to GND or to VCCA |