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| 4NZ CY2304NZ Four Output PCI-X and General Purpose Buffer Features * 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 BUF_IN L H L H Functional Description 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. Table 1. Function Table. Inputs OE L L H H Outputs Output [1:4] L L L H Block Diagram OE BUF_IN OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4 Logic Control Pin Configuration 8 TSSOP Top View BUF_IN OE OUTPUT1 GND 1 2 3 4 8 7 6 5 OUTPUT4 OUTPUT3 VDD OUTPUT2 Pin Description for CY2304NZ Signal VDD GND BUF_IN OUTPUT [1:4] OE Pin 6 4 1 3, 5, 7, 8 2 3.3V voltage supply Ground Input clock Outputs Input pin for output enable, active HIGH. Description Cypress Semiconductor Corporation Document #: 38-07099 Rev. *B * 3901 North First Street * San Jose * CA 95134 * 408-943-2600 Revised December 14, 2002 CY2304NZ Maximum Ratings Supply Voltage to Ground Potential ........ -0.5V to VDD +0.5V DC Input Voltage (Except REF) .............-0.5V to VDD +0.5V DC Input Voltage REF............................. -0.5V to VDD +0.5V Storage Temperature ................................. -65C to +150C Max. Soldering Temperature (10 sec.) ....................... 260C Junction Temperature................................................. 150C Static Discharge Voltage (per MIL-STD-883, Method 3015) ........................... > 2,000V Operating Conditions Parameter VDD TA CL CIN Supply Voltage Operating Temperature (Ambient Temperature) Load Capacitance Input Capacitance DC 0.05 Power-up time for all VDD's to reach minimum specified voltage (power ramps must be monotonic) Description Min. 3.0 -40 Max. 3.6 85 25 7 140 50 Unit V C pF pF MHz ms BUF_IN, OUTPUT [1:4] Operating Frequency tPU Electrical Characteristics Parameter VIL VIH IIL IIH VOL VOH IDD Description Input LOW Voltage [1] Test Conditions Min. 2.0 Max. 0.8 Unit V V A A V V V V Input HIGH Voltage[1] Input LOW Current Input HIGH Current Output LOW Voltage[2] [2] VIN = 0V VIN = VDD IOL = 24 mA IOL = 12 mA IOH = -24 mA IOH = -12 mA Unloaded outputs at 66.66 MHz -5 -5 5 5 0.8 0.55 Output HIGH Voltage Supply Current 2.0 2.4 25 mA Switching Characteristics[3] for Commercial and Industrial Temperature Devices Parameter t3 t4 t5 t6 Name Duty Cycle [2] Description Measured at 1.5V Measured between 0.8V and 2.0V Measured between 0.8V and 2.0V All outputs equally loaded Measured at VDD/2 Min. 40.0 Typ. 50.0 Max. 60.0 1.50 1.50 100 Unit % ns ns ps ns = t2 / t1 Rise Time[2] Fall Time[2] Output to Output Skew[2] Propagation Delay, BUF_IN Rising Edge to OUTPUT Rising Edge[2] 2.5 3.5 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 2.0V 0.8V t3 2.0V 0.8V t4 3.3V 0V OUTPUT Output-Output Skew OUTPUT 1.5V OUTPUT t5 1.5V Input-Output Propagation Delay INPUT VDD/2 OUTPUT t6 VDD/2 Document #: 38-07099 Rev. *B Page 3 of 5 CY2304NZ Ordering Information Ordering Code CY2304NZZC-1 CY2304NZZC-1T CY2304NZZI-1 CY2304NZZI-1T 8-pin TSSOP 8-pin TSSOP - Tape and Reel 8-pin TSSOP 8-pin TSSOP - Tape and Reel Package Type Operating Range Commercial, 0C to 70C Commercial, 0C to 70C Industrial, -40C to 85C Industrial, -40C to 85C 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 (c) 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. ** *A *B ECN NO. 111420 118610 121820 Issue Date 02/12/02 09/25/02 12/14/02 Orig. of Change IKA HWT RBI New Data Sheet Added Industrial Temperature Range in the Ordering Information Power up requirements added to Operating Conditions Information Description of Change Document #: 38-07099 Rev. *B Page 5 of 5 |
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