4NZ CY2304NZ Four Output PCI-X and General Purpose Buffer Features Functional Description • One input to four output buffer/driver The CY2304NZ 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. • General-purpose or PCI-X clock buffer • Buffers all frequencies from DC to 140 MHz Table 1. Function Table. • Output-to-output skew less than 100 ps Inputs • Space-saving 8-pin TSSOP package • 3.3V operation Outputs BUF_IN OE Output [1:4] L H L H L L H H L L L H Block Diagram Pin Configuration Logic Control OE BUF_IN 8 TSSOP Top View OUTPUT1 BUF_IN OE 1 8 OUTPUT2 2 7 OUTPUT3 OUTPUT1 GND 3 6 4 5 OUTPUT4 OUTPUT3 VDD OUTPUT2 OUTPUT4 Pin Description for CY2304NZ Signal Pin Description VDD 6 3.3V voltage supply GND 4 Ground BUF_IN 1 Input clock OUTPUT [1:4] OE 3, 5, 7, 8 Outputs 2 Cypress Semiconductor Corporation Document #: 38-07099 Rev. *B Input pin for output enable, active HIGH. • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 Revised December 14, 2002 CY2304NZ Storage Temperature ................................. –65°C to +150°C Maximum Ratings Max. Soldering Temperature (10 sec.) ....................... 260°C Supply Voltage to Ground Potential ........ –0.5V to VDD +0.5V Junction Temperature................................................. 150°C DC Input Voltage (Except REF) .............–0.5V to VDD +0.5V Static Discharge Voltage (per MIL-STD-883, Method 3015) ........................... > 2,000V DC Input Voltage REF............................. –0.5V to VDD +0.5V Operating Conditions Min. Max. Unit VDD Parameter Supply Voltage Description 3.0 3.6 V -40 85 °C 25 pF TA Operating Temperature (Ambient Temperature) CL Load Capacitance CIN Input Capacitance BUF_IN, OUTPUT [1:4] Operating Frequency tPU Power-up time for all VDD's to reach minimum specified voltage (power ramps must be monotonic) 7 pF DC 140 MHz 0.05 50 ms Electrical Characteristics Parameter Description Test Conditions Min. [1] Max. Unit 0.8 V VIL Input LOW Voltage VIH Input HIGH Voltage[1] IIL Input LOW Current VIN = 0V –5 5 µA IIH Input HIGH Current VIN = VDD –5 5 µA IOL = 24 mA 0.8 V IOL = 12 mA 0.55 V VOL VOH IDD Output LOW Voltage[2] Output HIGH Voltage [2] Supply Current 2.0 V IOH = –24 mA 2.0 V IOH = –12 mA 2.4 V Unloaded outputs at 66.66 MHz 25 mA Max. Unit Switching Characteristics[3] for Commercial and Industrial Temperature Devices Parameter Name [2] = t2 ÷ t1 Description Typ. 40.0 50.0 60.0 % t3 Rise Time[2] Measured between 0.8V and 2.0V 1.50 ns t4 Fall Time[2] Measured between 0.8V and 2.0V 1.50 ns t5 Output to Output Skew[2] All outputs equally loaded 100 ps t6 Propagation Delay, BUF_IN Rising Edge to OUTPUT Rising Edge[2] Measured at VDD/2 5 ns Duty Cycle Measured at 1.5V Min. 2.5 3.5 Notes: 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. Document #: 38-07099 Rev. *B Page 2 of 5 CY2304NZ Switching Waveforms Duty Cycle Timing t1 t2 1.5V 1.5V 1.5V All Outputs Rise/Fall Time OUTPUT 2.0V 0.8V 2.0V 0.8V 3.3V 0V t4 t3 Output-Output Skew OUTPUT 1.5V 1.5V OUTPUT t5 Input-Output Propagation Delay INPUT VDD/2 VDD/2 OUTPUT t6 Document #: 38-07099 Rev. *B Page 3 of 5 CY2304NZ Ordering Information Ordering Code Package Type Operating Range CY2304NZZC-1 8-pin TSSOP Commercial, 0°C to 70°C CY2304NZZC-1T 8-pin TSSOP - Tape and Reel Commercial, 0°C to 70°C CY2304NZZI-1 8-pin TSSOP Industrial, –40°C to 85°C CY2304NZZI-1T 8-pin TSSOP - Tape and Reel Industrial, –40°C to 85°C Package Diagram 8-pin Thin Shrunk Small Outline Package (4.40 MM Body) Z8 51-85093-** All product and company names mentioned in this document are the trademarks of their respective holders. Document #: 38-07099 Rev. *B Page 4 of 5 © Cypress Semiconductor Corporation, 2002. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. CY2304NZ Document History Page Document Title: CY2304NZ Four Output PCI-X and General Purpose Buffer Document Number: 38-07099 REV. ECN NO. Issue Date Orig. of Change ** 111420 02/12/02 IKA *A 118610 09/25/02 HWT *B 121820 12/14/02 RBI Document #: 38-07099 Rev. *B Description of Change New Data Sheet Added Industrial Temperature Range in the Ordering Information Power up requirements added to Operating Conditions Information Page 5 of 5