SN74CB3Q3306A www.ti.com SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 Dual FET Bus Switch 2.5-V/3.3-V Low-Voltage High-Bandwidth Bus Switch Check for Samples: SN74CB3Q3306A FEATURES • 1 • • • • • • • (1) (1) High-Bandwidth Data Path (up to 500 MHz ) 5-V-Tolerant I/Os With Device Powered Up or Powered Down Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron = 4 Ω Typ) Rail-to-Rail Switching on Data I/O Ports – 0- to 5-V Switching With 3.3-V VCC – 0- to 3.3-V Switching With 2.5-V VCC Bidirectional Data Flow With Near-Zero Propagation Delay Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 3.5 pF Typ) Fast Switching Frequency (f OE = 20 MHz Max) For additional information regarding the performance characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008. • • • • • • • • Data and Control Inputs Provide Undershoot Clamp Diodes Low Power Consumption (ICC = 0.25 mA Typ) VCC Operating Range From 2.3 V to 3.6 V Data I/Os Support 0- to 5-V Signaling Levels (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V) Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs Ioff Supports Partial-Power-Down Mode Operation Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Performance Tested Per JESD 22 – 2000-V Human-Body Model (A114-B, Class II) – 1000-V Charged-Device Model (C101) Supports Both Digital and Analog Applications: USB Interface, Differential Signal Interface, Bus Isolation, Low-Distortion Signal Gating PW PACKAGE (TOP VIEW) DCU PACKAGE (TOP VIEW) 1OE 1A 1B GND 1 2 3 8 7 6 4 5 VCC 2OE 2B 2A 1OE 1A 1B GND 1 8 2 7 3 6 4 5 VCC 2OE 2B 2A ORDERING INFORMATION PACKAGE (1) TA TSSOP – PW –40°C to 85°C US8-DCU (1) (2) ORDERABLE PART NUMBER Tube SN74CB3Q3306APW Tape and reel SN74CB3Q3306APWR Tape and reel SN74CB3Q3306ADCUR 74CB3Q3306ADCURE4 TOP-SIDE MARKING BU306A GA6R (2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. The last character designates assembly/test site. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2002–2011, Texas Instruments Incorporated SN74CB3Q3306A SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. DESCRIPTION/ORDERING INFORMATION The SN74CB3Q3306A is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3306A provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems. The SN74CB3Q3306A is organized as two 1-bit switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 1-bit bus switches or as one 2-bit bus switch. When OE is low, the associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Table 1. FUNCTION TABLE (EACH BUS SWITCH) INPUT OE INPUT/OUTPUT A FUNCTION L B A port = B port H Z Disconnect LOGIC DIAGRAM (POSITIVE LOGIC) 2 1A 1OE 3 1B SW 1 5 2A 6 SW 2B 7 2OE 2 Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A SN74CB3Q3306A www.ti.com SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 SIMPLIFIED SCHEMATIC, EACH FET SWITCH (SW) B A VCC Charge Pump EN(1) (1) EN is the internal enable signal applied to the switch. ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VCC Supply voltage range VIN Control input voltage range (2) (3) (2) (3) (4) MIN MAX –0.5 4.6 V –0.5 7 V VI/O Switch I/O voltage range IIK Control input clamp current VIN < 0 –50 mA II/OK I/O port clamp current VI/O < 0 –50 mA ±64 mA ±100 mA II/O ON-state switch current –0.5 7 UNIT (5) Continuous current through each VCC or GND qJA Package thermal impedance (6) Tstg Storage temperature range (1) (2) (3) (4) (5) (6) DCU TBD PW 88 –65 150 V °C/W °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to ground, unless otherwise specified. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed. VI and VO are used to denote specific conditions for VI/O. II and IO are used to denote specific conditions for II/O. The package thermal impedance is calculated in accordance with JESD 51-7. RECOMMENDED OPERATING CONDITIONS (1) MIN MAX VCC Supply voltage VIH High-level control input voltage VIL Low-level control input voltage VI/O Data input/output voltage TA Operating free-air temperature (1) UNIT 2.3 3.6 V VCC = 2.3 V to 2.7 V 1.7 5.5 VCC = 2.7 V to 3.6 V 2 5.5 VCC = 2.3 V to 2.7 V 0 0.7 VCC = 2.7 V to 3.6 V 0 0.8 0 5.5 V –40 85 °C V V All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A 3 SN74CB3Q3306A SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 www.ti.com ELECTRICAL CHARACTERISTICS (1) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK MIN TYP (2) TEST CONDITIONS VCC = 3.6 V, II = –18 mA VCC = 3.6 V, VIN = 0 to 5.5 V VCC = 3.6 V, VO = 0 to 5.5 V, VI = 0, Switch OFF, VIN = VCC or GND Ioff VCC = 0, VO = 0 to 5.5 V, VI = 0 ICC VCC = 3.6 V, II/O = 0, Switch ON or OFF, VIN = VCC or GND Other inputs at VCC or GND IIN IOZ Control inputs (3) MAX UNIT –1.8 V ±1 mA ±1 mA 1 mA 0.7 mA 25 mA 0.03 0.1 mA/ MHz 2.5 3.5 pF 0.25 ΔICC (4) Control inputs VCC = 3.6 V, One input at 3 V, ICCD (5) Per control input VCC = 3.6 V, A and B ports open, Control inputs VCC = 3.3 V, VIN = 5.5 V, 3.3 V, or 0 Cio(OFF) VCC = 3.3 V, Switch OFF, VIN = VCC or GND, VI/O = 5.5 V, 3.3 V, or 0 3.5 5 pF Cio(ON) VCC = 3.3 V, Switch ON, VIN = VCC or GND, VI/O = 5.5 V, 3.3 V, or 0 8 10.5 pF VI = 0, IO = 30 mA 4 8 VI = 1.7 V, IO = –15 mA 5 9 VI = 0, IO = 30 mA 4 6 VI = 2.4 V, IO = –15 mA 5 8 Cin ron Control input switching at 50% duty cycle VCC = 2.3 V, TYP at VCC = 2.5 V (6) VCC = 3 V (1) (2) (3) (4) (5) (6) Ω VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins. All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C. For I/O ports, the parameter IOZ includes the input leakage current. This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND. This parameter specifies the dynamic power-supply current associated with the operating frequency of a single control input (see Figure 2). Measured by the voltage drop between the A and B terminals at the indicated current through the switch. ON-state resistance is determined by the lower of the voltages of the two (A or B) terminals. SWITCHING CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) (see Figure 3) PARAMETER f OE 4 TO (OUTPUT) VCC = 2.5 V ± 0.2 V MIN VCC = 3.3 V ± 0.3 V MAX MIN UNIT MAX OE A or B 10 20 MHz A or B B or A 0.2 0.2 ns ten OE A or B 1.5 6.5 1.5 5.5 ns tdis OE A or B 1 6 1 5 ns tpd (1) (2) (1) FROM (INPUT) (2) Maximum switching frequency for control input (VO > VCC, VI = 5 V, RL ≥ 1 MΩ, CL = 0) The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A SN74CB3Q3306A www.ti.com SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 TYPICAL ron vs VI ron − ON-State Resistance − Ω 16 VCC = 3.3 V TA = 25°C IO = −15 mA 14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 18 20 VI − V Figure 1. Typical ron vs VI TYPICAL ICC vs OE SWITCHING FREQUENCY 12 VCC = 3.3 V TA = 25°C A and B Ports Open ICC − mA 10 8 6 4 2 One OE Switching 0 0 2 4 6 8 10 12 14 16 OE Switching Frequency − MHz Figure 2. Typical ICC vs OE Switching Frequency Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A 5 SN74CB3Q3306A SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION VCC Input Generator VIN 50 Ω 50 Ω VG1 TEST CIRCUIT DUT 2 × VCC Input Generator VI S1 RL VO 50 Ω 50 Ω VG2 RL CL (see Note A) TEST VCC S1 RL VI CL tpd(s) 2.5 V ± 0.2 V 3.3 V ± 0.3 V Open Open 500 Ω 500 Ω VCC or GND VCC or GND 30 pF 50 pF tPLZ/tPZL 2.5 V ± 0.2 V 3.3 V ± 0.3 V 2 × VCC 2 × VCC 500 Ω 500 Ω GND GND 30 pF 50 pF 0.15 V 0.3 V tPHZ/tPZH 2.5 V ± 0.2 V 3.3 V ± 0.3 V GND GND 500 Ω 500 Ω VCC VCC 30 pF 50 pF 0.15 V 0.3 V V∆ VCC Output Control (VIN) VCC/2 VCC VCC/2 VCC/2 0V tPLH VOH Output VCC/2 Output Waveform 1 S1 at 2 × VCC (see Note B) tPLZ VCC VCC/2 VCC/2 VOL VOL + V∆ VOL tPZH tPHL VCC/2 0V tPZL Output Control (VIN) Open GND Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES (tpd(s)) tPHZ VOH VCC/2 VOH − V∆ 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd(s). The tpd propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). H. All parameters and waveforms are not applicable to all devices. Figure 3. Test Circuit and Voltage Waveforms 6 Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A SN74CB3Q3306A www.ti.com SCDS113E – DECEMBER 2002 – REVISED JANUARY 2011 REVISION HISTORY Changes from Revision D (April 2005) to Revision E • Page Added DCU package ordering information. .......................................................................................................................... 1 Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated Product Folder Link(s) :SN74CB3Q3306A 7 PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) 74CB3Q3306ADCURE4 ACTIVE US8 DCU 8 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 GA6R 74CB3Q3306ADCURG4 ACTIVE US8 DCU 8 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 GA6R 74CB3Q3306APWRE4 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306ADCUR ACTIVE US8 DCU 8 3000 Green (RoHS & no Sb/Br) CU NIPDAU | CU SN Level-1-260C-UNLIM -40 to 85 (A6 ~ GA6R) GZ SN74CB3Q3306APW ACTIVE TSSOP PW 8 150 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306APWE4 ACTIVE TSSOP PW 8 150 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306APWG4 ACTIVE TSSOP PW 8 150 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306APWR ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU | CU SN Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306APWRE4 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A SN74CB3Q3306APWRG4 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 BU306A (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 1-Nov-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device 74CB3Q3306ADCURG4 Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) US8 DCU 8 3000 180.0 SN74CB3Q3306ADCUR US8 DCU 8 3000 SN74CB3Q3306APWR TSSOP PW 8 2000 B0 (mm) K0 (mm) P1 (mm) 8.4 2.25 3.35 1.05 4.0 180.0 9.0 2.05 3.3 1.0 330.0 12.4 7.0 3.6 1.6 Pack Materials-Page 1 W Pin1 (mm) Quadrant 8.0 Q3 4.0 8.0 Q3 8.0 12.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 1-Nov-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) 74CB3Q3306ADCURG4 US8 DCU 8 3000 202.0 201.0 28.0 SN74CB3Q3306ADCUR US8 DCU 8 3000 182.0 182.0 20.0 SN74CB3Q3306APWR TSSOP PW 8 2000 364.0 364.0 27.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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