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 June 2005 rev 0.4 Four Output PCI-X and General Purpose Buffer
Features Functional Description
One input to four Output Buffer/Driver General-purpose or PCI-X clock buffer Buffers all frequencies from DC to 140 MHz Output-to-output skew less than 100 pS Space-saving 8-pin TSSOP Package 3.3V operation
ASM2P2304NZ
The ASM2P2304NZ is a low-cost buffer designed to distribute high-speed clocks for PCI-X and other applications. The device operates at 3.3V and outputs can run up to 140 MHz.
Table 1. Function Table. Inputs BUF_IN
L H L H
Outputs OE
L L H H
Output [1:4]
L L L H
Block Diagram
OE
Logic Control
BUF_ IN OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
Alliance Semiconductor 2575, Augustine Drive * Santa Clara, CA * Tel: 408.855.4900 * Fax: 408.855.4999 * www.alsc.com
Notice: The information in this document is subject to change without notice.
June 2005 rev 0.4
Pin Configuration
8 TSSOP Top V iew BUF_IN OE OUTPUT 1 GND 1 2 3 4 ASM2P2304NZ 8 7 6 5 OUTPUT 4 OUTPUT 3 VDD OUTPUT 2
ASM2P2304NZ
Pin Description Pin #
1 2 3 4 5 6 7 8
Pin Name
BUF_IN OE Output 1 GND Output 2 VDD Output 3 Output 4
Type
I I O P O P O O
Description
Input clock. 5V Tolerant Input Input pin for Output Enable, active HIGH. Output 1 Ground Output 2 3.3V Voltage Supply Output 3 Output 4
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
Absolute Maximum Ratings Parameter
Supply Voltage to Ground Potential DC Input Voltage (Except REF) DC Input Voltage (REF) Storage Temperature Max. Soldering Temperature (10 sec) Junction Temperature Static Discharge Voltage (As per JEDEC STD22- A114-B)
ASM2P2304NZ
Min
-0.5 -0.5 -0.5 -65
Max
7 VDD + 0.5 7 +150 260 150 2000
Unit
V V V C C C V
Note: These are stress ratings only and functional usage is not implied. Exposure to absolute maximum ratings for prolonged periods can affect device reliability.
Operating Conditions Parameter
VDD TA CL CIN BUF_IN, OUTPUT [1:4] tPU Supply Voltage Operating Temperature (Ambient Temperature) Load Capacitance Input Capacitance Operating Frequency Power-up time for all VDD's to reach minimum specified Voltage (Power ramps must be monotonic)
Description
Min
3.0 -40 DC 0.05
Max
3.6 85 25 7 140 50
Unit
V C pF pF MHz mS
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
Electrical Characteristics Parameter
VIL VIH IIL IIH
ASM2P2304NZ
Description
Input LOW Voltage
1
Test Conditions
Min
2.0
Max
0.8 5 5 0.8 0.55 25
Unit
V V KA KA V V V V mA
Input HIGH Voltage
1
Input LOW Current Input HIGH Current
2
VIN = 0V VIN= VDD IOL= 24 mA IOL= 12 mA
2
-5 -5 2.0 2.4 3
VOL
Output LOW Voltage
IOH= -24 mA IOH= -12 mA
VOH
Output HIGH Voltage
IDD
Supply Current
Unloaded outputs at 66.66 MHz
Switching Characteristics for Commercial and Industrial Temperature Devices Parameter
tD t3 t4 t5 t6
Name
Duty Cycle = t2 /t1 Rise Time Fall Time
2 2 2
Description
Measured at 1.5V Measured between 0.8V and 2.0V Measured between 0.8V and 2.0V
2
Min
40.0 2.5
Typ
50.0 3.5
Max
60.0 1.50 1.50 200 5
Unit
% nS nS pS nS
Output to Output Skew
All outputs equally loaded Measured at VDD/2
Propagation Delay, BUF_IN Rising Edge to 2 OUTPUT Rising Edge
Note: 1. BUF_IN input has a threshold voltage of VDD/2. 2. Parameter is guaranteed by design and characterization. It is not 100% tested in production. 3. All parameters specified with loaded outputs.
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
Switching Waveforms Duty Cycle Timing
ASM2P2304NZ
All Outputs Rise/Fall Time
Output-Output Skew
Input-Output Propagation Delay
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
Package Information
ASM2P2304NZ
8-lead Thin Shrunk Small Outline Package (4.40-MM Body)
H
E D A2 A C e B A1 L
Dimensions Symbol Min
A A1 A2 B c D E e H L O 0.020 0 0.002 0.033 0.008 0.004 0.114 0.169 0.026 BSC 0.252 BSC 0.028 8 0.50 0
Inches Max
0.043 0.006 0.037 0.012 0.008 0.122 0.177 0.05 0.85 0.19 0.09 2.90 4.30
Millimeters Min Max
1.10 0.15 0.95 0.30 0.20 3.10 4.50 0.65 BSC 6.40 BSC 0.70 8
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
Ordering Codes Part Number
ASM2P2304NZF-08-TT ASM2P2304NZF-08-TR ASM2I2304NZF-08-TT ASM2I2304NZF-08-TR ASM2P2304NZG-08-TT ASM2P2304NZG-08-TR ASM2I2304NZG-08-TT ASM2I2304NZG-08-TR
ASM2P2304NZ
Marking
2P2304NZF 2P2304NZF 2I2304NZF 2I2304NZF 2P2304NZG 2P2304NZG 2I2304NZG 2I2304NZG
Package Type
8-pin TSSOP, Pb Free 8-pin TSSOP - Tape and Reel, Pb Free 8-pin TSSOP, Pb Free 8-pin TSSOP - Tape and Reel, Pb Free 8-pin TSSOP, Green 8-pin TSSOP - Tape and Reel, Green 8-pin TSSOP, Green 8-pin TSSOP - Tape and Reel, Green
Temperature
Commercial Commercial Industrial Industrial Commercial Commercial Industrial Industrial
Device Ordering Information
ASM2P2304NZ
F-08-TR
R = Tape & reel, T = Tube or Tray
O = SOT S = SOIC T = TSSOP A = SSOP V = TVSOP B = BGA Q = QFN DEVICE PIN COUNT
U = MSOP E = TQFP L = LQFP U = MSOP P = PDIP D = QSOP X = SC-70
F = LEAD FREE AND RoHS COMPLIANT PART G = GREEN PACKAGE
PART NUMBER X= Automotive I= Industrial P or n/c = Commercial (-40C to +125C) (-40C to +85C) (0C to +70C) 1 = Reserved 2 = Non PLL based 3 = EMI Reduction 4 = DDR support products 5 = STD Zero Delay Buffer 6 = Power Management 7 = Power Management 8 = Power Management 9 = Hi Performance 0 = Reserved
ALLIANCE SEMICONDUCTOR MIXED SIGNAL PRODUCT
Licensed under US patent #5,488,627, #6,646,463 and #5,631,920.
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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June 2005 rev 0.4
ASM2P2304NZ
Alliance Semiconductor Corporation 2575, Augustine Drive, Santa Clara, CA 95054 Tel# 408-855-4900 Fax: 408-855-4999 www.alsc.com
Copyright (c) Alliance Semiconductor All Rights Reserved Part Number: ASM2P2304NZ Document Version: 0.4
Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to Alliance Semiconductor, dated 11-11-2003
(c) Copyright 2003 Alliance Semiconductor Corporation. All rights reserved. Our three-point logo, our name and Intelliwatt are trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their respective companies. Alliance reserves the right to make changes to this document and its products at any time without notice. Alliance assumes no responsibility for any errors that may appear in this document. The data contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right to change or correct this data at any time, without notice. If the product described herein is under development, significant changes to these specifications are possible. The information in this product data sheet is intended to be general descriptive information for potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or customer. Alliance does not assume any responsibility or liability arising out of the application or use of any product described herein, and disclaims any express or implied warranties related to the sale and/or use of Alliance products including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual property rights, except as express agreed to in Alliance's Terms and Conditions of Sale (which are available from Alliance). All sales of Alliance products are made exclusively according to Alliance's Terms and Conditions of Sale. The purchase of products from Alliance does not convey a license under any patent rights, copyrights; mask works rights, trademarks, or any other intellectual property rights of Alliance or third parties. Alliance does not authorize its products for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result in significant injury to the user, and the inclusion of Alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use.
Four Output PCI-X and General Purpose Buffer
Notice: The information in this document is subject to change without notice.
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