California Micro Devices PACS1284-02Q, PACS1284-04Q Datasheet

CALIFORNIA MICRO DEVICES

P/Active™ IEEE 1284 ECP/EPP Termination Network

PACS1284

Features

• Single chip IEEE 1284 parallel port termination

• 28 pin QSOP package, smallest physical solution

• 17 terminating lines in a single package

• In system ESD protection to 8KV, HBM

• In system ESD protection to 4KV per IEC1000-4-2

• Protects downstream devices to 30V

Product Description

California Micro Devices’ PACS1284 Parallel Port
Termination Network provides a complete integrated
solution for the entire IEEE 1284 interface in a single
QSOP package.

Advanced, enhanced high-speed parallel ports, con­forming to the IEEE 1284 standard, are used to provide
communications with external devices such as tape
back-up drives, ZIP drives, printers, parallel port SCSI
adapters, external LAN adapters, scanners, video
capture, and other PC peripherals. These advanced
ports support bi-directional transfers to 2MB/sec. To
effectively support these higher transfer data rates, the
IEEE 1284 standard recommends a combined termina­tion, 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 strict filtering on the parallel port. California
Micro Devices’ PACS1284
Network addresses all of these requirements by provid-

Parallel Port Termination

Applications

• ECP/EPP Parallel Port termination

• PC Peripherals

• Notebook and Desktop computers

• Engineering Workstations and Servers

ing a seventeen line, IEEE 1284 compliant network in a
thin film integrated circuit. The device provides a com­plete parallel port termination solution for space critical
applications by integrating a total of 43 discrete compo­nents. In addition, all I/O pins are ESD protected for
contact discharges up to 4KV per the Human Body
Model. However, the output pins of the device which
have the highest probability of exposure to ESD pulses
are protected to 8KV, HBM, thereby providing the
necessary robustness for the port’s application environ­ment.

California Micro Devices’ P/Active technology provides
high reliability and low cost through manufacturing
efficiency. The resistors and capacitors are fabricated
using proprietary state-of-the-art thin film technology.
California Micro Devices’ solution is silicon-based and
has the same reliability characteristics as today’s
integrated circuits.

28

CC

1

27

26

R1R1R1R1

2

egakcaPrebmuNtraPgniredrO

edoCCRsniPelytSsebuTleeR&epaTgnikraMtraP

2082POSQT/Q20-4821SCAPR/Q20-4821SCAPQ204821SCAP
4082POSQT/Q40-4821SCAPR/Q40-4821SCAPQ404821SCAP

© 2000 California Micro Devices Corp. All rights reserved.

8/25/2000

215 Topaz Street, Milpitas, California 95035 Tel: [phone] Fax: [phone] www.calmicro.com

SCHEMATIC CONFIGURATION

21

V

CC

20

R1

R2

C

19

R1R1

R2

CCC

C

7

8

9

10

R1

R1

R2

C

C

11

12

1718

R1

R1

R2

C

C

13

16

15

R1

R1

R2

C

C

14

GND

22

25

R1

R2

C

3

24

R1

R2

C

4

23

R1

R1

R2

C

R2

C

5

6

NOITAMROFNIGNIREDROTRAPDRADNATS

C1420800

1

CALIFORNIA MICRO DEVICES

PACS1284

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)C(ecnareloTetulosbA%02±

egnaRerutarepmeTgnitarepOC°07otC°0

V

CC

rotsiseR/gnitaRrewoPWm001

tnerruCegakaeLmumixaM

Vta(

)xaM52@Aµ1C°

CC

:egatloVpmalClangiS

pmalCevitisoP

pmalCevitageN

erutarepmeTegarotSC°051otC°56–

gnitaRrewoPegakcaPxaM,W00.1

* Guaranteed by design

Note 1: Human Body Model per MIL-STD-883, Method 3015

C
ESD Contact Discharge from I/O pins 1, 2, 8, 10, 12, 15, 16, 17, 18, 19, 21, 23 through 28 to ground (pin22), one at a time.

Discharge

= 100pF, R

= 1.5 KΩ, pin 20 @ 5V and pin 22 @ ground.

Discharge

xaMV6

V6>

V6–<

*noitcetorPDSEniMxaM

)2etoN(MBH,noitcetorPmetsySnI VK8– VK8

SEULAVDRADNATS

(1R Ω)(2R Ω))fP(cedoCCR

K2.23302220
K7.43308140

SNOITACIFICEPSDSE

)1etoN(5103dohteM,ledoMydoBnamuH,O/IynataegatloVegrahcsiDkaeP VK4– VK4

)2,1etoN(2leveL,2-4-0001CEI,noitcetorPmetsySnI VK4– VK4

)2,1etoN(MBH,sesluPDSEVK8@egatloVpmalClennahC V03– V03

Note 2: Pin 22 grounded, pin 20 to V

pins 1, 2, 8, 10, 12, 15, 16, 17, 18, 19, 21, 23 through 28, one at a time.

Note 3: Standard IEC 1000-4-2 with C

, all other pins are open. ESD contact discharge between ground and

CC

Discharge

= 150pF, R

= 330Ω, pin 20 @ 5V and pin 22 @ ground.

Discharge

©2000 California Micro Devices Corp. All rights reserved.

2

215 Topaz Street, Milpitas, California 95035 Tel: [phone] Fax: [phone] www.calmicro.com

8/25/2000