IEEE 1284 ECP/EPP Termination Network

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1 PAS284 IEEE 284 EP/EPP Termination Network Features Single chip IEEE 284 parallel port termination 28-pin QSOP package, smallest physical solution 7 terminating lines in a single package In-system ESD protection to ±8KV, HBM In-system ESD protection to ±4KV per IE Protects downstream devices to 30V Lead-free version available Applications EP/EPP Parallel Port termination P Peripherals Notebook and Desktop computers Engineering Workstations and Servers Product Description alifornia Micro Devices PAS284 Parallel Port Termination Network provides a complete integrated solution for the entire IEEE 284 interface in a single QSOP package. To support the bi-directional transfer data rates of enhanced high-speed parallel ports, the IEEE 284 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 EM compatibility requirements impose strict filtering requirements on the parallel port. The alifornia Micro Devices PAS284 addresses all these requirements by providing a seventeen-line IEEE 284-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 60 discrete components. In addition, all the I/O pins are ESD protected for contact discharges up to ±4KV per the Human Body Model (HBM), with the output pins having the highest probability of ESD pulse exposure protected to ±8KV (HBM), thereby providing the necessary robustness for the port s application environment. The PAS284 is manufactured in a 28-pin QSOP package and is available with optional lead-free finishing. Electrical Schematic PAS284-02: = 2.2kΩ = 33Ω = 2.2kΩ = 220pF PAS284-04: = 4.7kΩ = 33Ω = 4.7kΩ = 80pF alifornia Micro Devices orp. All rights reserved. 06/07/ N. Mcarthy Blvd., Milpitas, A Tel: Fax:

2 PAS284 PAKAGE / PINOUT DIAGRAM Note: This drawing is not to scale. AP-FILTERED; PULL-UP AP-FILTERED; PULL-UP SUPERHIP SIDE SERIES-TERMINATED SUPERHIP SIDE SERIES-TERMINATED SUPERHIP SIDE SERIES-TERMINATED SUPERHIP SIDE SERIES-TERMINATED SUPERHIP SIDE SERIES-TERMINATED AP-FILTERED; PULL-UP SUPERHIP SIDE SERIES-TERMINATED AP-FILTERED; PULL-UP SUPERHIP SIDE SERIES-TERMINATED AP-FILTERED; PULL-UP SUPERHIP SIDE SERIES-TERMINATED SUPERHIP SIDE SERIES-TERMINATED pin QSOP AP-FILTERED; PULL-UP AP-FILTERED; PULL-UP ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED GND ONNETOR SIDE SERIES-TERMINATED V ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED ONNETOR SIDE SERIES-TERMINATED AP-FILTERED; PULL-UP PIN DESRIPTIONS PINS PIN NAME DESRIPTION, 2, 27 ap-filtered; IEEE 284 signals which require no series termination; pull-up is value. Pull-up 8, 0, 2, 5, , 9,, 3,4 6-9, 2, ap-filtered; Pull-up Superhip Side Series-terminated onnector Side Series-terminated 20 V Supply rail for the device 22 GND Ground reference for the device IEEE 284 signals which require no series termination; pull-up is value. IEEE 284 signals on the Super I/O hip side which require series termination. IEEE 284 signals on the Parallel Port onnector side which require series termination. Ordering Information STANDARD VALUES Product (Ω) (Ω) (Ω) (pf) PAS k k 220 PAS k k 80 PART NUMBERING INFORMATION Standard FInish Lead-free Finish Ordering Part Ordering Part Pins Package Number Part Marking Number Part Marking 28 QSOP PAS284-02Q PAS28402Q PAS284-02QR PAS28402QR 28 QSOP PAS284-04Q PAS28404Q PAS284-04QR PAS28404QR Note : Parts are shipped in Tape & Reel form unless otherwise specified alifornia Micro Devices orp. All rights reserved N. Mcarthy Blvd., Milpitas, A Tel: Fax: /07/04

3 PAS284 Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS V Voltage 6.0 V Input Voltage Range, no clamping -6.0 to 6.0 V Storage Temperature Range -65 to +50 Power Dissipation per Resistor 00 mw Package Power Dissipation.00 W STANDARD OPERATING ONDITIONS PARAMETER RATING UNITS V Voltage 5.0 V Operating Temperature 0 to +70 ELETRIAL OPERATING HARATERISTIS (SEE NOTE ) SYMBOL PARAMETER ONDITIONS MIN TYP MAX UNITS TOL R Absolute Resistance Tolerance Measured at T A =25 ±0 % (,, ) TOL Absolute apacitance Tolerance Measured at MHz, 2.5VD, T A =25 ±20 % I LEAK Leakage current to GND Measured at 5.0VD, T A =25 µa V ESD Peak Discharge Voltage at any I/O Per MIL-STD-883, Method 305 (HBM); Discharge =00pF; R Discharge =.5KΩ; Notes 2,3 V ESD In-System ESD Protection Per MIL-STD-883, Method 305 (HBM); Discharge =00pF; R Discharge =.5KΩ; Notes 2,3 V ESD In-System ESD Protection Per IE Level 2; Discharge =50pF; R Discharge =330Ω; Notes 2,3 V L lamping voltage under ESD discharge ESD applied to connector pin, measured at corresponding input pin; +8kV discharge, Human Body Model Note 2 ±4 kv ±8 kv ±4 kv ±30 V Note : Operating haracteristics are over Standard Operating onditions unless otherwise specified. Note 2: Guaranteed by design. Note 3: ESD contact discharge between pin 22 (GND) and pins, 2, 8, 0, 2, 5, 6, 7, 8, 9, 2, 23, 24, 25, 26, 27, & 28 (one at a time, all other I/O pins open), pin 20=5V; pin 22=GND 2004 alifornia Micro Devices orp. All rights reserved. 06/07/ N. Mcarthy Blvd., Milpitas, A Tel: Fax:

4 PAS284 Performance Information Filter apacitors Figure shows typical insertion loss graphs for the PAS284, for Data and Strobe signals. The curves are dependent on the physical location of the filter elements with respect to the ground and V terminals of the device. These graphs are measured in a 50 Ohm environment. The signal is introduced at the series resistor input and the output is measured at the corresponding filter capacitor. The three plotted lines in Figure depict the following measurements: Line labeled "A" is measured between pin 4 (input) and pin 6 (output). Line labeled "B" is measured between pin 3 (input) and pin 26 (output). Line labeled "" is measured between pin 6 (input) and pin 23 (output). The "A" graph depicts worst case filter performance, while "" represents a best case situation. Graphs of all other filter elements will fall between these two. (The filter insertion loss was measured using a Hewlett Packard HP8753 Analyzer.) S 2 2 in db A B (FREQUENY, MHz) Figure. Typical Filter Insertion Loss for PAS284 (S 2 in db, T A =25 ) 2004 alifornia Micro Devices orp. All rights reserved N. Mcarthy Blvd., Milpitas, A Tel: Fax: /07/04

5 PAS284 Application Information Termination onsiderations The IEEE 284 specification requires both termination and EMI filtering on a total of 7 signal lines. ontrol and Status lines (8 in total) only require a pull-up resistor and a filter capacitor. The Data lines and Strobe also require a series termination resistor in addition to the pull-up resistors and filter capacitors. See Table, in conjunction with the schematic diagram on page. Table : IEEE 284 Termination Requirements SIGNAL TERMINATION REQUIREMENTS Signal Name Data - Data8 Strobe Init AutoFeedXT Selectin AK Busy Paper Empty Select Fault Series Termination Yes Yes Interfacing to IEEE 284 onnectors IEEE 284 defines three interface connectors: 284 A is a 25-pin DB series connector which is the de facto P standard for the host connection. 284 B is a 36-pin, inch centerline connector used on the peripheral device. 284 is a new 36-pin, inch centerline connector which can be used for both host and peripheral. Figure 2A shows a possible hook-up between the 284-A connector on a P motherboard and the PAS284, illustrating how the pin configuration of the PAS284 allows for easy interconnect between the two. The dotted I/O signals of the PAS284 will typically be connected to a Super I/O chip on the motherboard. Figure 2B shows a possible hook-up between the 284-B connector on a peripheral and the PAS284. Figure 2 shows a possible hook-up between the 284- connector and the PAS284. Figure 2A: Figure 2B: Figure 2: 284-A onnector Host 284-B onnector Peripheral 284- onnector Host/Peripheral PAS284 SUPER FLOW = THROUGH GND SIGNALS = V PAS284 SUPER = GND =V PAS284 SUPER Figure 2. Example onnections of IEEE 284 onnectors with PAS alifornia Micro Devices orp. All rights reserved. 06/07/ N. Mcarthy Blvd., Milpitas, A Tel: Fax:

6 PAS284 Application Information (continued) Table 2 provides the IEEE 284 signal assignments for the three connectors, and example PAS284 pin connections. When connecting a 284-A host to a 284-B peripheral, the Peripheral Logic High signal is not used. Similarly, when a 284-A host is connected to a 284- peripheral, the Peripheral Logic High and Host Logic High are not used. These two signals are optionally used to detect a Power Off or able Disconnect state for host and peripheral, respectively. Table 2: IEEE 284 onnector Pinouts and PAS284 onnection Guidelines PAS284 PIN TYPE 284-A 25-PIN DSUB 284-B 36-PIN HAMP PIN HIGH DENSITY SIGNAL PIN SIGNAL PIN SIGNAL PIN P-Port conn. side, series-terminated (6-9, 2, or 23-26) STROBE STROBE STROBE 5 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 2 Data 2 Data 6 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 2 3 Data 2 3 Data 2 7 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 3 4 Data 3 4 Data 3 8 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 4 5 Data 4 5 Data 4 9 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 5 6 Data 5 6 Data 5 0 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 6 7 Data 6 7 Data 6 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 7 8 Data 7 8 Data 7 2 P-Port conn. side, series-terminated (6-9, 2, or 23-26) Data 8 9 Data 8 9 Data 8 3 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) AK 0 AK 0 AK 3 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) BUSY BUSY BUSY apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) PError 2 PError 2 PError 5 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) Select 3 Select 3 Select 2 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) AUTOFD 4 AUTOFD 4 AUTOFD 7 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) FAULT 5 FAULT 32 FAULT 4 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) INIT 6 INIT 3 INIT 4 apacitor-filtered (, 2, 8, 0, 2, 5, 27, or 28) Selectin 7 Selectin 36 Selectin 6 Ground 8 Ground 9 Ground 9 Ground 9 Ground 20 Ground 20 Ground 20 Ground 2 Ground 2 Ground 2 Ground 22 Ground 22 Ground 22 Ground 23 Ground 23 Ground 23 Ground 24 Ground 24 Ground 24 Ground 25 Ground 25 Ground 25 Ground 26 Ground 26 Ground 27 Ground 27 Ground 28 Ground 28 Ground 29 Ground 29 Ground 30 Ground 30 Not Defined 33 Ground 3 Not Defined 34 Ground 32 Not Defined 35 Ground 33 Not Defined 5 Ground 34 Logic Ground 6 Ground 35 hassis GND 7 36 Peripheral Logic 8 Host Logic High alifornia Micro Devices orp. All rights reserved N. Mcarthy Blvd., Milpitas, A Tel: Fax: /07/04

7 PAS284 Mechanical Details QSOP Mechanical Specifications: PAS284 devices are packaged in 28-pin QSOP packages. Dimensions are presented below. For complete information on the QSOP-28 package, see the alifornia Micro Devices QSOP Package Information document. Mechanical Package Diagrams TOP VIEW D PAKAGE DIMENSIONS Package QSOP (JEDE name is SSOP) Pins 28 H Pin Marking E Dimensions Millimeters Inches Min Max Min Max A A SIDE VIEW B D E SEATING PLANE A B e A e 0.64 BS BS H END VIEW L # per tube 50 pieces* # per tape and reel 2500 pieces L ontrolling Dimensions: inches * This is an approximate amount which may vary. Package Dimensions for QSOP alifornia Micro Devices orp. All rights reserved. 06/07/ N. Mcarthy Blvd., Milpitas, A Tel: Fax:

IEEE 1284 Parallel Port ESD/EMI/Termination Network

IEEE 1284 Parallel Port ESD/EMI/Termination Network IEEE 284 Parallel Port ESD/EMI/Termination Network PASZ284 Features 7 EMI filters 7 ESD protectors yielding protection to 30kV contact discharge, per IE 6000-4-2 specification 7 terminators with choice