5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com SP486_487_100_061611
PIN FUNCTION
SP487
Pin Function SP487
Pin 1 - DI
1
- Driver 1 Input - If driver 1 output is
enabled, a logic 0 on DI
1
forces driver output DO
1
A
low and DO
1
B high. A logic 1 on DI
1
with driver 1
output enabled forces driver DO
1
A high and DO
1
B
low.
Pin 2 - DO
1
A - Driver 1 output A.
Pin 3 - DO
1
B - Driver 1 output B.
Pin 4 - EN
1
/EN
2
- Driver 1 and 2 Output Enable;
Please refer to SP487 truth table (2).
Pin 5 - DO
2
B - Driver 2 output B.
Pin 6 - DO
2
A - Driver 2 output A.
Pin 7 - DI
2
- Driver 2 Input - If driver 2 output is
enabled, a logic 0 on DI
2
forces driver output DO
2
A
low and DO
2
B high. A logic 1 on DI
2
with driver 2
output enabled forces driver DO
2
A high and DO
2
B
low.
Pin 8 - GND - Ground.
Pin 9 - DI
3
- Driver 3 Input - If driver 3 output is
enabled, a logic 0 on DI
1
forces driver output DO
3
A
low and DO
3
B high. A logic 1 on DI
3
with driver 3
output enabled forces driver DO
3
A high and DO
3
B
low.
Pin 10 - DO
3
A - Driver 3 output A.
Pin 11 - DO
3
B - Driver 3 output B.
Pin 12 - EN
3
/EN
4
- Driver 3 and 4 Output Enable;
Please refer to SP487 truth table (2)..
Pin 13 - DO
4
B - Driver 4 output B.
Pin 14 - DO
4
A - Driver 4 output A.
Pin 15 - DI
4
- Driver 4 Input - If driver 4 output is
enabled, a logic 0 on DI
4
forces driver output DO
4
A
low and DO
4
B high. A logic 1 on DI
4
with driver 4
output enabled forces driver DO
4
A high and DO
4
B
low.
Pin 16 - Supply Voltage - +4.75V ≤ Vcc ≤ +5.25V.
