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| PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer Features * High-speed, low-noise, non-inverting 1:4 buffer * Maximum Frequency up to 250 MHz * Low output skew < 150ps * Low propagation delay < 3.0ns * 1.8V or 2.5V supply voltage * Packages (Pb-free & Green available): -8-pin SOIC (W) Description The PI6C10804 is a 1.8V or 2.5V high-speed, low-noise 1:4 non-inverting clock buffer. The key goal in designing the PI6C10804 is to target networking applications that require lowskew, low-jitter, and high-frequency clock distribution. Providing output-to-output skew as low as 150ps, the PI6C10804 is an ideal clock distribution device for synchronous systems. Designing synchronous networking systems requires a tight level of skew from a large number of outputs. Block Diagram Pin Configuration Pin Description Pin Name BUF_IN CLK [0:3] GND VDD OE 06-0035 Description Input Outputs Ground Power Output Enable PS8822B 04/03/06 1 PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer 2.5V Absolute Maximum Ratings (Above which the useful life may be impaired. For user guidelines only, not tested.) Storage Temperature...........................................................-65C to +150C VDD Voltage ..........................................................................-0.5V to +3.6V Output Voltage (max. 3.6V) .......................................... -0.5V to VDD+0.5V Input Voltage (max 3.6V).............................................. -0.5V to VDD+0.5V Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2.5V DC Characteristics (Over Operating Range: VDD = 2.5V 0.2V, TA = -40 to 85C) Parameters Description VDD VIH VIL II Supply Voltage Input HIGH Voltage Input LOW Voltage Input Current Logic HIGH level Logic LOW level VDD = Max, Vin = VDD or GND I/O pins non I/O pins IOH = -1mA VOH Output High Voltage VDD = Min., VIN = VIH or VIL IOH = -2mA IOH = -8mA IOL = 1mA VOL Output LOW Voltage VDD = Min., VIN - VIH or VIL IOL = 2mA IOL = 8mA 2.0 1.7 1.5 Test Conditions(1) Min. 2.3 1.7 -0.3 Typ. (2) 2.5 Max. 2.7 3.6 0.7 15 5 Units V V A V 0.4 0.7 0.7 V Notes: 1. For Max. or Min. conditions, use appropriate operating range values. 2. Typical values are at VCC = 2.5V, +25C ambient and maximum loading. 2.5V AC Characteristics (Over Operating Range: VDD = 2.5V 0.2V, TA = -40 to 85C) Parameters FIN tR/tF tPLH, tPHL tSK(O)(3) tSK(P)(3) tSK(T)(3) tdc_in tdc_out (2) Description Input Frequency CLKn Rise/Fall Time Propagation Delay BUF_IN to CLKn Output to Output Skew between any two outputs of the same device @ same transition Pulse Skew between opposite transitions (tPHL-tPLH) of the same output Part to Part Skew between two identical outputs of different parts on the same board(4) Duty Cycle In @ 1ns edge rate Duty Cycle Out Test Conditions(1) 20% to 80% Min. 0 1.0 Typ Max. 250 1.0 Units MHz ns ns 1.5 100 2.0 150 200 300 CL = 5pF, 125 MHz Outputs are measured @ Vdd/2 40 40 100 ps 60 60 % Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew measured at worse cast temperature (max. temp). 4. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. 06-0035 2 PS8822B 04/03/06 PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer 1.8V Absolute Maximum Ratings (Above which the useful life may be impaired. For user guidelines only, not tested.) Storage Temperature...........................................................-65C to +150C VDD Voltage ..........................................................................-0.5V to +2.5V Output Voltage (max 2.5V) .......................................... -0.5V to VDD+0.5V Input Voltage (max 2.5V) ............................................. -0.5V to VDD+0.5V Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 1.8V DC Characteristics (Over Operating Range: VDD = 1.8V 0.15V, TA = -40 to 85C) Parameters VDD VIH VIL II VOH VOL Description Supply Voltage Input HIGH Voltage Input LOW Voltage Input Current(3) Output High Voltage Output LOW Voltage Logic HIGH level Logic LOW level VDD = Max, Vin = VDD or GND VDD = Min., VIN = VIH or VIL VDD = Min., VIN - VIH or VIL I/O pins non I/O pins IOH = -2mA IOH = -8mA IOL = 2mA IOL = -8mA 1.3 1.2 0.45 0.45 V Test Conditions(1) Min. 1.65 0.65*Vdd -0.3 Typ. (2) 1.8 Max. 1.95 2.7 0.35*Vdd 15 5 Units V V A Notes: 1. For Max. or Min. conditions, use appropriate operating Vdd and Ta values. 2. Typical values are at VCC = 1.8V, +25C ambient and maximum loading. 3. This parameter is determined by device characterization but is not production tested. 1.8V AC Characteristics (Over Operating Range: VDD = 1.8V 0.15V, TA = -40 to 85C) Parameters FIN tR/tF tPLH, tPHL tSK(O)(3) tSK(P)(3) tSK(T)(3) tdc_in tdc_out (2) Description Input Frequency CLKn Rise/Fall Time Propagation Delay BUF_IN to CLKn Output to Output Skew between any two outputs of the same device @ same transition Pulse Skew between opposite transitions (tPHL-tPLH) of the same output Part to Part Skew between two identical outputs of different parts on the same board(4) Duty Cycle In @ 1ns edge rate Duty Cycle Out Test Conditions(1) 20% to 80% Min. 0 1.0 Typ Max. 180 1.0 Units MHz ns ns 2.0 100 3.0 150 275 300 CL = 5pF, 125 MHz Outputs are measured @ Vdd/2 40 40 200 ps 60 60 % Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew measured at worse cast temperature (max. temp). 4. Identical conditions: loading, transitions, supply voltage, temperature, package type and speed grade. 06-0035 3 PS8822B 04/03/06 PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer Power Supply Characteristics Parameters IDDQ IDD_TOT ICC Description Quiescent Power Supply Current Total Power Supply Current VDD = 2.7V VDD = 1.95V VDD = 2.7V VDD = 1.95V Test Conditions(1) VIN = GND or VDD All Outputs Toggling, CL = 5pF, FIN = 125MHz VINx = Vdd - 0.6V (3) VINx = Vdd - 0.6V (3) Min. Typ. (2) Max. 10 10 20 15 200 200 Units A mA A Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics. 2. Typical values are at VCC = 1.8V or 2.5V, and +25C ambient. 3. Per TTL driven input (VIN = VDD - 0.6V); all other inputs at VCC or GND. Static Supply Current VDD = 2.7V per inputs @ High VDD = 1.95V Level Capacitance (TA = 25C, f = 1 MHz) Parameters(1) Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 2.0 1.7 Max. 4 6 Units pF CIN Note: 1. COUT This parameter is determined by device characterization but is not production tested. Test Circuits for All Outputs Definitions: CL = Load capacitance: includes jig and probe capacitance. 06-0035 4 PS8822B 04/03/06 PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer Switching Waveforms Propagation Delay Pulse Skew - tSK(P) Output Skew - tSK(O) Vdd Input tPLHx CLKx tSK(O) CLKy tPLHy tSK(O) = | tPLHy - tPLHx | or Package Skew - tSK(T) Vdd Input tPLH1 Part #1 Output tSK(T) Part #2 Output tPLH2 tSK(T) = | tPLH2 - tPLH1 | or Vdd/2 tPHLx Vdd/2 tPHL1 0V VOH Vdd/2 VOL tSK(O) VOH Vdd/2 tPHLy 0V VOH Vdd/2 tSK(T) VOL VOH Vdd/2 VOL VOL tPHL2 | tPHL2 - tPHL1 | | tPHLy - tPHLx | 06-0035 5 PS8822B 04/03/06 PI6C10804 1.8V/2.5V, 250MHz, 1:4 Networking Clock Buffer Packaging Mechanical: 8-Pin SOIC (W) Ordering Information(1,2,3) Ordering Code PI6C10804WE Package Code W Package Type Pb-free & Green, 8-pin 153-mil wide SOIC Notes: 1. Thermal Characteristics can be found on the web at www.pericom.com/packaging/ 2. E = Pb-free and Green 3. X suffix = Tape/Reel Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com 06-0035 6 PS8822B 04/03/06 |
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