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PDF ST1284 Data sheet ( Hoja de datos )
| Número de pieza | ST1284 | |
| Descripción | Parallel port single termination network | |
| Fabricantes | STMicroelectronics | |
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Hay una vista previa y un enlace de descarga de ST1284 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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ST1284
Parallel port single termination network with ±15 kV ESD protection
Features
■ One device for parallel port termination
■ Compliant with IEEE1284 standard
■ EMI / RFI noise filtering
■ Highly integrated solution in 28 pins QSOP
package
■ One single device provides the proper
termination for 8 data lines, 1 strobe line, 4
control lines and 4 status lines
■ In system ESD protection of ±15 kV (air
discharge) as per IEC 61000-4-2 level 4
■ ECOPACK®2 compliant component
Complies with the following standards:
■ IEC 61000-4-2 level 4
– ±15 kV (air discharge)
– ±8 kV (contact discharge)
MIL STD 883G - Method 3015-7 Class 3
– ±25 kV (human body model)
Applications
ECP/EPP parallel port termination on:
■ Desktops
■ Notebooks
■ Workstations
■ Servers
■ PC peripherals
■ Set top box
Datasheet − production data
QSOP28
Description
The ST1284-01A8 is a highly integrated
termination for enhanced high speed parallel
ports. The integrated termination complies to the
IEEE1284 Standard recommendations and
government EMC compatibility requirements. It is
built around two basic cells. The first one (cell 1)
provides line termination, EMI filtering and ESD
protection for the strobe and data lines while the
www.DataSheet.net/
second one (cell 2) provides EMI filtering and
ESD protection for the Control and Status lines.
In addition, ST1284-01A8 provides extra
protection against ESD. When tested according to
IEC 61000-4-2, they withstand ±8 kV contact
discharges and ±15 kV air discharges, thereby
providing to the system the necessary robustness
to meet up to level 4 of IEC 61000-4-2, without the
need for additional ESD protection components.
TM: IPAD is a trademark of STMicroelectronics.
May 2012
This is information on a product in full production.
Doc ID 6976 Rev 4
1/10
www.st.com
10
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
ST1284
2 Application information
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 (Rp) and a filter
capacitor (C).
The data lines (from 2 to 9) and the STROBE (pin 1) also require a termination series
resistor (Rs) in addition to the pull-up resistor and a filter capacitor. The VCC is connected to
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.
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Doc ID 6976 Rev 4
5/10
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ST1284.PDF ] | |
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