IDT49FCT3805D/E 3.3V CMOS DUAL 1-TO-5 CLOCK DRIVER INDUSTRIAL TEMPERATURE RANGE 3.3V CMOS DUAL IDT49FCT3805D/E 1-TO-5 CLOCK DRIVER FEATURES: DESCRIPTION: Advanced CMOS Technology The FCT3805 is a 3.3 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 FCT3805 offers Operating frequency up to 166MHz low capacitance inputs. TTL compatible inputs and outputs The FCT3805 is designed for high speed clock distribution where signal Inputs can be driven from 3.3V or 5V components quality and skew are critical. The FCT3805 also allows single point-to-point Two independent output banks with 3-state control transmission line driving in applications such as address distribution, where one 1:5 fanout per bank signal must be distributed to multiple recievers with low skew and high signal Heartbea monitor output quality. VCC = 3.3V 0.3V For more information on using the FCT3805 with two different input Available in SSOP and QSOP packages frequencies on bank A and B, please see AN-236. FUNCTIONAL BLOCK DIAGRAM PIN CONFIGURATION VCCA 1 VCCB 20 OEA OA1 2 OB1 19 5 OA2 3 18 OB2 INA OA1 - OA5 4 17 OA3 OB3 GNDA 5 16 GNDB OA4 6 15 OB4 OA5 OB5 14 7 5 IN B OB1 - OB5 GNDQ 13 MON 8 OEB OEB OEA 12 9 INA INB 10 11 MON SSOP/ QSOP TOP VIEW The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE MAY 2010 1 c 2004 Integrated Device Technology, Inc. DSC-5864/19IDT49FCT3805D/E 3.3V CMOS DUAL 1-TO-5 CLOCK DRIVER INDUSTRIAL TEMPERATURE RANGE (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. LLL 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. DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified Industrial: TA = -40C to +85C, VCC = 3.3V 0.3V (1) (2) Symbol Parameter Test Conditions Min. Typ. Max. Unit VIH Input HIGH Level 2 5.5 V VIL Input LOW Level 0.5 0.8 V IIH Input HIGH Current VCC = Max. VI = 5.5V 1 IIL Input LOW Current VCC = Max. VI = GND 1A IOZH High Impedance Output Current VCC = Max. VO = VCC 1 IOZL (3-State Outputs Pins) VO = GND 1 VIK Clamp Diode Voltage VCC = Min., IIN = 18mA 0.7 1.2 V (3,4) IODH Output HIGH Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V 45 74 180 mA (3,4) IODL Output LOW Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V 50 90 200 mA (3,4) IOS Short Circuit Current VCC = Max., VO = GND 60 135 240 mA (5) VOH Output HIGH Voltage VCC = Min. IOH = 12mA 2.4 3 (5) VIN = VIH or VIL IOH = 8mA 2.4 3 V IOH = 100AVCC - 0.2 VOL Output LOW Voltage VCC = Min. IOL = 12mA 0.3 0.4 VIN = VIH or VIL IOL = 8mA 0.2 0.4 V IOL = 100A 0.2 NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, 25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = Vcc -0.6V at rated current. 2