IDT49FCT20805 2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER INDUSTRIAL TEMPERATURE RANGE 2.5V CMOS DUAL IDT49FCT20805 1-TO-5 CLOCK DRIVER FEATURES: DESCRIPTION: Advanced CMOS Technology The FCT20805 is a 2.5 volt clock driver built using advanced CMOS Guaranteed low skew < 200ps (max.) technology. The device consists of two banks of drivers, each with a 1:5 fanout Very low propagation delay < 2.5ns (max) and its own output enable control. The device has aheartbea monitor for Very low duty cycle distortion < 270ps (max) diagnostics and PLL driving. The MON output is identical to all other outputs Very low CMOS power levels and complies with the output specifications in this document. The FCT20805 Operating frequency up to 166MHz offers low capacitance inputs. TTL compatible inputs and outputs The FCT20805 is designed for high speed clock distribution where signal Two independent output banks with 3-state control quality and skew are critical. The FCT20805 also allows single point-to-point 1:5 fanout per bank transmission line driving in applications such as address distribution, where one Heartbea monitor output signal must be distributed to multiple recievers with low skew and high signal VCC = 2.5V 0.2V quality. Available in SSOP and QSOP packages FUNCTIONAL BLOCK DIAGRAM OEA 5 OA1 -OA5 INA 5 INB OB1 -OB5 B OE MON INDUSTRIAL TEMPERATURE RANGE FEBRUARY 2014 1 c 2014 Integrated Device Technology, Inc. DSC-6172/113IDT49FCT20805 2.5V CMOS DUAL 1-TO-5 CLOCK DRIVER INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATIONS VCCA 1 20 VCCB OA1 2 OB1 19 OA2 3 18 OB2 4 17 OA3 OB3 GNDA 16 GNDB 5 OA4 6 15 OB4 OA5 OB5 14 7 GNDQ MON 8 13 OEB OEA 12 9 INA INB 10 11 SSOP/ QSOP TOP VIEW (1) ABSOLUTE MAXIMUM RATINGS PIN DESCRIPTION Symbol Description Max Unit Pin Names Description VCC Input Power Supply Voltage 0.5 to +4.6 V OEA, OEB 3-State Output Enable Inputs (Active LOW) VI Input Voltage 0.5 to +5.5 V INA, INB Clock Inputs VO Output Voltage 0.5 to VCC+0.5 V OAn, OBn Clock Outputs TJ Junction Temperature 150 C M O N Monitor Output TSTG Storage Temperature 65 to +165 C NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause (1) FUNCTION TABLE 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 Inputs Outputs sections of this specification is not implied. Exposure to absolute maximum rating OEA, OEB INA, INB OAn, OBn MON conditions for extended periods may affect reliability. LL L L LH H H HL Z L HH Z H O NOTE: CAPACITANCE (TA = +25 C, f = 1.0MHz) 1. H = HIGH (1) Symbol Parameter Conditions Typ. Max. Unit L = LOW Z = High-Impedance CIN Input Capacitance VIN = 0V 3 4 pF COUT Output Capacitance VOUT = 0V 6 pF NOTE: 1. This parameter is measured at characterization but not tested. 2