ST1284

Application information

Doc ID 6976 Rev 4

5/10

2

Application information

The functional diagram here above presents a IEEE1284-A connector pinout and show how

to connect the ST1284-01A8 in order to correctly terminate and filter the 17 signal lines. The

IEEE1284-A connector is the PC standard for the host connection.

capacitor (C).

The data lines (from 2 to 9) and the STROBE (pin 1) also require a termination series

pin 20 and the ground to pin 22.

The ST1284-01A8 can be used with all 3 types of connectors defined in the IEEE1284

standard:

–

IEEE1284-A is a 25 dB connector which is the PC standard for the host

connection.

–

IEEE1284-B is a 36 pin, 0.085 inch center line connector used on the peripheral

device.

–

IEEE1284-C is a new 36 pin, 0.050 inch center line connector which can be used

for both host and peripherals.