IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE FAST CMOS 1-TO-10 CLOCK DRIVER IDT74FCT807BT/CT FEATURES: DESCRIPTION: − − − − − − − − − − − − 0.5 MICRON CMOS Technology Guaranteed low skew < 250ps (max.) Very low duty cycle distortion < 350ps (max.) High speed: propagation delay < 2.5ns (max.) 100MHz operation TTL compatible inputs and outputs TTL level output voltage swings 1:10 fanout Output rise and fall time < 1.5ns (max.) Low input capacitance: 4.5pF typical High Drive: -32mA IOH, 48mA IOL ESD > 2000V per MIL STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) Available in SOIC, SSOP, and QSOP packages The FCT807T clock driver is built using advanced dual metal CMOS technology. This low skew clock driver features 1:10 fanout, providing minimal loading on the preceding drivers. The FCT807T offers low capacitance inputs with hysteresis for improved noise margins. TTL level outputs and multiple power and grounds reduce noise. The device also features -32/48mA drive capability for driving low impedance traces. FUNCTIONAL BLOCK DIAGRAM PIN CONFIGURATION − O1 1 20 GND 2 19 O1 3 18 4 17 O2 5 16 O8 GND 6 15 V CC O3 7 14 O7 V CC 8 13 GND O4 9 12 O6 10 11 IN O2 V CC O3 O4 O5 IN O6 GND O7 SO20-2 SO20-7 SO20-8 V CC O 10 O9 GND O5 SOIC/ SSOP/ QSOP TOP VIEW O8 O9 O 10 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES DECEMBER 2000 1 c 2000 Integrated Device Technology, Inc. DSC-4242 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE CAPACITANCE (TA = +25OC, f = 1.0MHz) ABSOLUTE MAXIMUM RATINGS(1) Symbol VTERM Description Terminal Voltage with Respect to GND Max –0.5 to +7 Unit V TSTG Storage Temperature –65 to +150 °C IOUT DC Output Current –60 to +120 mA Symbol CIN Parameter(1) Input Capacitance Conditions VIN = 0V Typ. 4.5 Max. 6 Unit pF COUT Output Capacitance VOUT = 0V 5.5 8 pF NOTE: 1. This parameter is measured at characterization but not tested. 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. PIN DESCRIPTION Pin Names IN Ox Description Input Outputs DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified Commercial: TA = 0°C to +70°C, Industrial: TA = -40°C to +85°C, VCC = 5.0V ± 5% Symbol VIH Parameter Input HIGH Level (Input pins) Test Conditions(1) Guaranteed Logic HIGH Level VIL Input LOW Level Guaranteed Logic LOW Level IIH Input HIGH Current (Input pins) VCC = Max. VI = 2.7V IIL Input LOW Current (Input pins) VCC = Max. VI = 0.5V IOZH High Impedance Output Current VCC = Max. VO = 2.7V IOZL (3-State Output pins) II Input HIGH Current VCC = Max., VI = VCC (Max.) VIK Clamp Diode Voltage VCC = Min., IIN = –18mA IOS Short Circuit Current(4) VCC = Max.(3), VO = GND VOH Output HIGH Voltage VCC = Min. IOH = –15mA VIN = VIH or VIL VCC = Min. VOL Output LOW Voltage Typ.(2) — Max. — — — 0.8 V — — ±1 µA — — ±1 µA — — ±1 µA — — ±1 µA — — ±1 µA — –0.7 –1.2 V –60 –120 –225 mA 2.4 3.3 — V IOH = –32mA 2 3 — IOL = 48mA — 0.3 0.55 V — — ±1 µA — 150 — mV — 5 500 µA VO = 0.5V Min. 2 Unit V VIN = VIH or VIL IOFF Input/Output Power Off Leakage VH Input Hysteresis for all inputs ICCL ICCH ICCZ Quiescent Power Supply Current VCC = 0V, VIN or VO ≤ 4.5V — VCC = Max. VIN = GND or VCC 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 = 5.0V, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Duration of the condition can not exceed one second. 2 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(3) IC Total Power Supply Current(5) ∆ICC Test Conditions(1) VCC = Max. VIN = 3.4V VCC = Max. Input toggling 50% Duty Cycle Outputs Open VCC = Max. Input toggling 50% Duty Cycle Outputs Open fi = 50MHz Min. Typ.(2) Max. Unit — 0.5 2 mA VIN = VCC VIN = GND — 0.4 0.6 mA/ MHz VIN = VCC VIN = GND — 20 30.5(4) mA VIN = 3.4V VIN = GND — 20.3 31.3(4) 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 = 5.0V, +25°C ambient. 3. Per TTL driven input; (VIN = 3.4V); all other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) 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) fi= Input Frequency All currents are in milliamps and all frequencies are in megahertz. 3 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE: COMMERCIAL (3,4) FCT807BT FCT807CT Propagation Delay Conditions(1) 50Ω to VCC/2, CL = 10pF Min.(2) 1.3 Max. 2.7 Min.(2) 1.3 Max. 2.5 Unit ns Output Rise Time (See figure 1) — 1.5 — 1.5 ns tF Output Fall Time or 50Ω ac — 1.5 — 1.5 ns tSK(o) Output skew: skew between outputs of same package (same transition) — 0.5 — 0.25 ns tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) — 0.5 — 0.35 ns tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade termination, CL = 10pF (See figure 2) f ≤ 100MHz Outputs connected in groups of two — 0.9 — 0.65 ns Symbol tPLH tPHL tR Parameter FCT807BT Symbol tPLH tPHL tR Conditions(1) CL = 30pF f ≤ 67MHz (See figure 3) Parameter Propagation Delay Output Rise Time FCT807CT Min.(2) 1.5 Max. 3.8 Min.(2) 1.5 Max. 3.5 Unit ns — 1.5 — 1.5 ns tF Output Fall Time — 1.5 — 1.5 ns tSK(o) Output skew: skew between outputs of same package (same transition) — 0.5 — 0.25 ns tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) — 0.5 — 0.35 ns tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade — 0.9 — 0.75 ns FCT807BT Symbol tPLH tPHL tR Conditions(1) CL = 50pF f ≤ 40MHz (See figure 4) Parameter Propagation Delay Output Rise Time FCT807CT Min.(2) 1.5 Max. 3.8 Min.(2) 1.5 Max. 3.5 Unit ns — 1.5 — 1.5 ns tF Output Fall Time — 1.5 — 1.5 ns tSK(o) Output skew: skew between outputs of same package (same transition) — 0.5 — 0.35 ns tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) — 0.6 — 0.45 ns tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade — 1 — 0.75 ns NOTES: 1. See test circuits and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested. 4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew. 4 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE: INDUSTRIAL (3,4) FCT807BT Conditions(1) Min.(2) Propagation Delay 50Ω to VCC/2, CL = 10pF Output Rise Time tF Output Fall Time tSK(o) Output skew: skew between outputs of same package (same transition) tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade Symbol tPLH tPHL tR Parameter 1.3 Max. 2.9 Min.(2) 1.3 Max. 2.7 Unit ns (See figure 1) — 1.5 — 1.5 ns or 50Ω ac — 1.5 — 1.5 ns termination, CL = 10pF (See figure 2) f ≤ 100MHz Outputs connected in groups of two — 0.6 — 0.35 ns — 0.6 — 0.45 ns — 0.9 — 0.65 ns FCT807BT Symbol tPLH tPHL tR Conditions(1) CL = 30pF f ≤ 67MHz (See figure 3) Parameter Propagation Delay Output Rise Time FCT807CT FCT807CT Min.(2) 1.5 Max. 4 Min.(2) 1.5 Max. 3.7 Unit ns — 1.5 — 1.5 ns tF Output Fall Time — 1.5 — 1.5 ns tSK(o) Output skew: skew between outputs of same package (same transition) — 0.6 — 0.35 ns tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) — 0.6 — 0.45 ns tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade — 0.9 — 0.75 ns FCT807BT Symbol tPLH tPHL tR Conditions(1) CL = 50pF f ≤ 40MHz (See figure 4) Parameter Propagation Delay Output Rise Time FCT807CT Min.(2) 1.5 Max. 4 Min.(2) 1.5 Max. 3.7 Unit ns — 1.5 — 1.5 ns tF Output Fall Time — 1.5 — 1.5 ns tSK(o) Output skew: skew between outputs of same package (same transition) — 0.6 — 0.45 ns tSK(p) Pulse skew: skew between opposite transitions of same output (|tPHL -– tPLH|) — 0.7 — 0.55 ns tSK(t) Package skew: skew between outputs of different packages at same power supply voltage, temperature, package type and speed grade — 1 — 0.75 ns NOTES: 1. See test circuits and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested. 4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew. 5 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS 50Ω TO VCC/2, CL = 10pF V 50Ω AC TERMINATION, CL = 10pF V CC V CC CC 100Ω V IN V IN V OUT P u lse G e n e rato r R V OUT P u lse G e n e rato r D .U .T . 100Ω T D .U .T . 50Ω 10pF R 10pF T 2 2 0 pF The capacitor value for ac termination is determined by the operating frequency. For very low frequencies a higher capacitor value should be selected. Figure 1 Figure 2 CL = 50pF CIRCUIT CL = 30pF CIRCUIT V V CC V OUT V IN P u lse G e n e rato r CC V OUT V IN P u lse G e n e ra to r D .U .T . D .U .T . 30pF R T 50pF R CL Figure 3 T C L Figure 4 ENABLE AND DISABLE TIME CIRCUIT V CC 7 .0 V ENABLE AND DISABLE TIME SWITCH POSITION 500Ω V OUT V IN P u lse G e n e ra to r D .U .T . 50pF R T C Test Disable LOW Enable LOW Disable HIGH Enable HIGH 500Ω L Figure 5 Switch 6V GND DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. 6 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE TEST WAVEFORMS PACKAGE DELAY OUTPUT SKEW - tSK(o) 3V 1.5V INPUT INPUT tPLH1 0V tPLH 3V 1.5V 0V tPHL1 VOH tPHL VOH 2.0V tSK(o) tSK(o) 1.5V 0.8V OUTPUT 1.5V VOL OUTPUT 1 VOH 1.5V VOL VOL OUTPUT 2 tPLH2 tF tR tPHL2 tSK(o) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1| PULSE SKEW - tSK(p) PACKAGE SKEW - tSK(t) 3V 3V 1.5V INPUT INPUT 0V 1.5V 0V tPHL1 tPLH1 VOH 1.5V tPHL tPLH VOH tSK(t) VOL OUTPUT VOL PACKAGE 1 OUTPUT 1.5V tSK(p) = |tPHL - tPLH| PACKAGE 2 OUTPUT tPLH2 tSK(t) tPHL2 VOH 1.5V VOL tSK(t) = |t PLH2 - tPLH1| or |tPHL2 - tPHL1| Package 1 and Package 2 are same device type and speed grade ENABLE AND DISABLE TIMES ENABLE DISABLE 3V CONTROL INPUT 1.5V 0V t PLZ t PZL OUTPUT NORMALLY LOW SWITCH CLOSED 3.5V 1.5V SWITCH OPEN 0.3V V OL 0.3V VOH t PHZ t PZH OUTPUT NORMALLY HIGH 3.5V 1.5V 0V 0V NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH 2. Pulse Generator for All Pulses: f ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns 7 IDT74FCT807BT/CT FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT74FCT XXXX Device Type X X Package Tem p. Range Blank I Com mercial (0°C to +70°C) Industrial (-40°C to +85°C) SO PY Q Sm all Outline IC (SO20-2) Shrink Sm all Outline IC (SO20-7) Quarter-size Sm all Outline IC (SO28-8) 807BT 807CT 1-to-10 Clock Driver CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com* *To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. The IDT logo is a registered trademark of Integrated Device Technology, Inc. 8