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2 COMMERCIALANDINDUSTRIALTEMPERATURERANGES IDT2305 3.3VZERODELAYCLOCKBUFFER REF CLK1 2 3 4 8 7 6 5 1 CLK2 GND CLKOUT CLK4 VDD CLK3 PIN CONFIGURATION SOIC TOP VIEW Symbol Rating Max. Unit VDD Supply Voltage Range –0.5 to +4.6 V VI(2) Input Voltage Range (REF) –0.5 to +5.5 V VI InputVoltageRange –0.5 to V (except REF) VDD+0.5 IIK (VI < 0) Input Clamp Current –50 mA IO (VO = 0 to VDD) ContinuousOutputCurrent ±50 mA VDD or GND ContinuousCurrent ±100 mA TA = 55°C Maximum Power Dissipation 0.7 W (in still air)(3) TSTG StorageTemperatureRange –65 to +150 ° C Operating CommercialTemperature 0 to +70 ° C Temperature Range Operating IndustrialTemperature -40 to +85 ° C Temperature Range NOTES: 1. Stresses greater than those listed under ABSOLUTE 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. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 3. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils. NOTES: 1. Weak pull down. 2. Weak pull down on all outputs. PIN DESCRIPTION ABSOLUTE MAXIMUM RATINGS(1) APPLICATIONS: • SDRAM • Telecom • Datacom • PC Motherboards/Workstations • Critical Path Delay Designs Pin Name Pin Number Type Functional Description REF(1) 1 I N Input reference clock, 5 Volt tolerant input CLK2(2) 2 Out Output clock CLK1(2) 3 Out Output clock GND 4 Ground Ground CLK3(2) 5 Out Output clock VDD 6 PWR 3.3V Supply CLK4(2) 7 Out Output clock CLKOUT(2) 8 Out Output clock, internal feedback on this pin |
