PACSZ1284
IEEE 1284 Parallel Port ESD/EMI/Termination Network
Features
•
•
•
•
•
17 EMI filters
17 ESD protectors yielding protection to 30kV
contact discharge, per IEC 61000-4-2 specification
17 terminators with choice of resistor values
28-pin QSOP package
Lead-free version available
Product Description
The PACSZ1284 combines EMI filtering, ESD protec-
tion, and signal termination in a single QSOP package
for parallel port interfaces complying to the IEEE 1284
standard.
The PACSZ1284 provides a complete parallel port ter-
mination solution. It integrates the equivalent of 60 dis-
crete components, making it ideal for space critical
applications. The pins of the device which connect to
the parallel port are protected to 30kV contact dis-
charge, well beyond Level 4 of the IEC 61000-4-2
specification. All other pins are ESD-protected for con-
tact discharges up to 8kV per IEC 61000-4-2.
There are two values available for pull-up resistor R1.
For the PACSZ1284-02, R1 = 2.2kΩ; for the
PACSZ1284-04, R1 = 4.7kΩ.
The PACSZ1284 is housed in a 28-pin QSOP package
and is available with optional lead-free finishing.
Applications
•
Parallel Ports of PCs, printers, peripherals,
and Set-Top Boxes
Electrical Schematic
PACSZ1284-02
R1 = 2.2kΩ
R2 = 33Ω
C = 150pF
PACSZ1284-04
R1 = 4.7kΩ
R2 = 33Ω
C = 150pF
28
27
26
25
24
23
22 21
20
19
18
17
16
15
R1
R1
R1
R1
R1
R2
R1
R2
C
R1
R2
C
R1
R2
C
R1
R2
C
R1
R1
R2
R1
R1
R2
R1
R1
R2
R1
R2
C
R1
C
C
C
C
C
C
C
C
C
C
C
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
© 2006 California Micro Devices Corp. All rights reserved.
06/28/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
1
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
