Homedatasheet49FCT3805D

49FCT3805D Datasheet

Clock management
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Description

Features, Applications

Advanced CMOS Technology Guaranteed low skew < 200ps (max.) Very low propagation delay < 2.5ns (max) Very low duty cycle distortion < 270ps (max) Very low CMOS power levels Operating frequency to 166MHz TTL compatible inputs and outputs Inputs can be driven from or 5V components Two independent output banks with 3-state control 1:5 fanout per bank "Heartbeat" monitor output VCC � 0.3V Available in SSOP and QSOP packages

The a 3.3 volt clock driver built using advanced CMOS technology. The device consists of two banks of drivers, each with a 1:5 fanout and its own output enable control. The device has a "heartbeat" monitor for diagnostics and PLL driving. The MON output is identical to all other outputs and complies with the output specifications in this document. The FCT3805 offers low capacitance inputs. The FCT3805 is designed for high speed clock distribution where signal quality and skew are critical. The FCT3805 also allows single point-to-point transmission line driving in applications such as address distribution, where one signal must be distributed to multiple recievers with low skew and high signal quality.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

Symbol VCC VO TJ TSTG Description Input Power Supply Voltage Input Voltage Output Voltage Junction Temperature Storage Temperature Max to +165 Unit V �C

Pin Names OEA, OEB INA, INB OAn, OBn MON Clock Inputs Clock Outputs Monitor Output Description 3-State Output Enable Inputs (Active LOW)

NOTE: 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.

NOTE: 1. This parameter is measured at characterization but not tested.
Following Conditions Apply Unless Otherwise Specified Industrial: to +85�C, VCC � 0.3V

Symbol VIH VIL IIH IIL IOZH IOZL VIK IODH IODL IOS VOH Parameter Input HIGH Level Input LOW Level Input HIGH Current Input LOW Current High Impedance Output Current (3-State Outputs Pins) Clamp Diode Voltage Output HIGH Current Output LOW Current Short Circuit Current Output HIGH Voltage VCC = Min., IIN = �18mA VCC = 3.3V, VIN = VIH or VIL, VO = VCC = 3.3V, VIN = VIH or VIL, VO = VCC = Max., = GND(3,4) VCC = Min. VIN = VIH or VIL VOL Output LOW Voltage VCC = Min. VIN = VIH or VIL IOH = �12mA IOH = �8mA IOH = �100�A IOL = 12mA IOL = 8mA IOL 100�A 1.5V(3,4) VCC = Max. VCC = Max. VCC = Max. VI = GND VO = VCC VO = GND Test Conditions(1) Min. VCC 0.2 Typ.(2) Max. mA �A Unit V

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, 25�C 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.

Symbol ICCL ICCH ICCZ ICC ICCD Power Supply Current per Input HIGH Dynamic Power Supply Current per Output(3) IC Total Power Supply Current(4) VCC = Max. VIN = VCC �0.6V VCC = Max. = 15pF All Outputs Toggling VCC = Max. = 15pF All Outputs Toggling = 133MHz VCC = Max. = 15pF All Outputs Toggling = 166MHz

NOTES: For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at VCC 3.3V, +25�C ambient. This parameter is not directly testable, but is derived for use in Total Power Supply calculations. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fONO) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = VCC DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fO = Output Frequency NO = Number of Outputs at fO

Parameter Quiescent Power Supply Current VCC = Max.

Features

Parameters

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