ST1284-01A8 STMicroelectronics, ST1284-01A8 Datasheet - Page 5

• Manufacturer Part Number: ST1284-01A8
• Description: TERMINATION NETWORK SGL QSOP28
• Manufacturer: STMicroelectronics
• Series: ASD™r
• Type: Network Terminationr

Specifications of ST1284-01A8

• Filter Type: Signal Line
• Voltage - Rated: 5.5V
• Mounting Type: Surface Mount
• Termination Style: Surface Mount (SMD,SMT)
• Package / Case: QSOP-28
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Inductance: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-2565-5

ST1284
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.
Control and status lines (from 10 to 17) only require a pull-up resistor (R
capacitor (C).
The data lines (from 2 to 9) and the STROBE (pin 1) also require a termination series
resistor (R
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 centerline connector used on the peripheral
device.
IEEE1284-C is a new 36 pin, 0.050 inch centerline connector which can be used
for both host and peripherals.
s
) in addition to the pull-up resistor and a filter capacitor. The V
Doc ID 6976 Rev 3
Application information
p
CC
) and a filter
is connected to
5/10