1A1 |
4 |
6 |
I/O |
Input/output 1A1. Referenced to VCCA. |
1A2 |
5 |
7 |
I/O |
Input/output 1A2. Referenced to VCCA. |
1B1 |
13 |
15 |
I/O |
Input/output 1B1. Referenced to VCCB. |
1B2 |
12 |
14 |
I/O |
Input/output 1B2. Referenced to VCCB. |
1DIR |
2 |
4 |
I |
Direction-control input for 1 ports |
1OE |
15 |
1 |
I |
3-state output-mode enables. Pull OE high to place ‘1’ outputs in 3-state mode. Referenced to VCCA. |
2A1 |
6 |
8 |
I/O |
Input/output 2A1. Referenced to VCCA. |
2A2 |
7 |
9 |
I/O |
Input/output 2A2. Referenced to VCCA. |
2B1 |
11 |
13 |
I/O |
Input/output 2B1. Referenced to VCCB. |
2B2 |
10 |
12 |
I/O |
Input/output 2B2. Referenced to VCCB. |
2DIR |
3 |
5 |
I |
Direction-control input for 2 ports |
2OE |
14 |
16 |
I |
3-state output-mode enables. Pull OE high to place 2 outputs in 3-state mode. Referenced to VCCA. |
GND |
8, 9 |
10, 11 |
— |
Ground |
VCCA |
1 |
3 |
— |
A-port power supply voltage. 1.2 V ≤ VCCA ≤ 3.6 V |
VCCB |
16 |
2 |
— |
B-port power supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V |