PRELIMINARY
CALIFORNIA MICRO DEVICES
PRC1284
MICROPOWER RRO Operational Amplifier with Shutdown
Features
• Stable resistor-capacitor network
• 9 terminating lines/package
• Saves board space, reduces assembly cost,
simplifies routing
• ESD protected
• Miniature QSOP package
Applications
• ECP/EPP Parallel Port termination
• EMI/RFI Filter
• Notebook and Desktop computers
• Engineering Workstations and Servers
Product Description
Advanced, high-speed parallel ports, conforming to the
IEEE 1284 standard, are used to provide communica-
tions with external devices such as tape back-up drives,
ZIP drives, printers, parallel port SCSI adapters, external
LAN adapters, scanners, and other PC peripherals.
These advanced ports support bi-directional transfers to
2MB/sec and above. To support these data rates, the
IEEE 1284 standard recommends a combined termina-
tion, pull-up filter network between the driver/receiver
and the cable at both ends of the parallel port interface.
In addition, government EMC compatibility requirements
impose the need to include a filter on the parallel port.
The PRC1284 addresses all of these requirements by
providing a nine line, IEEE 1284 compliant network in a
thin film integrated circuit. Two of these networks replace
54 discrete components and provide a complete parallel
port termination.
CAMD’s PRC1284 Parallel Port Termination Network is a
convenient single function which includes pull-up, series
termination, and an EMI filter capacitor. The resistors
and capacitors are fabricated using proprietary state-of-
the-art thin film technology.
SCHEMATIC CONFIGURATION
20
19
18
17
16
15
14
13
12
11
R1
R2
C
1
2
3
4
5
6
7
8
9
10
S TA N D A R D PA R T O R D E R I N G I N F O R M AT I O N
Package
RC Code
01
02
03
04
05
06
07
Pins
20
20
20
20
20
20
20
Style
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
SOIC
Ordering Part Number
Tubes
PRC1284-01S/T
PRC1284-02S/T
PRC1284-03S/T
PRC1284-04S/T
PRC1284-05S/T
PRC1284-06S/T
PRC1284-07S/T
Tape & Reel
PRC1284-01S/R
PRC1284-02S/R
PRC1284-03S/R
PRC1284-04S/R
PRC1284-05S/R
PRC1284-06S/R
PRC1284-07S/R
Part Marking
PRC1284-01S
PRC1284-02S
PRC1284-03S
PRC1284-04S
PRC1284-05S
PRC1284-06S
PRC1284-07S
C1210600
© 2000 California Micro Devices Corp. All rights reserved.
7/14/2000
215 Topaz Street, Milpitas, California 95035
Tel: (408) 263-3214
Fax: (408) 263-7846
www.calmicro.com
1
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
