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SN74CB3Q3125PWE4

SN74CB3Q3125PWE4

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    TSSOP14

  • 描述:

    IC BUS SWITCH 1 X 1:1 14TSSOP

  • 数据手册
  • 价格&库存
SN74CB3Q3125PWE4 数据手册
Product Folder Sample & Buy Support & Community Tools & Software Technical Documents Reference Design SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 SN74CB3Q3125 Quadruple FET Bus Switch 2.5-V/3.3-V Low-Voltage, High-Bandwidth Bus Switch 1 Features • • 1 • • • • • • • • • • • • • • (1) 2 Applications (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 = 3 Ω Typ) Rail-to-Rail Switching on Data I/O Ports – 0-V to 5-V Switching With 3.3-V VCC – 0-V to 3.3-V Switching With 2.5-V VCC Bidirectional Data Flow With Near-Zero Propagation Delay Low Input and Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 4 pF Typ) Fast Switching Frequency (fOE = 20 MHz Max) Data and Control Inputs Provide Undershoot Clamp Diodes Low Power Consumption (ICC = 0.3 mA Typ) VCC Operating Range From 2.3 V to 3.6 V Data I/Os Support 0-V 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, 5-V, or 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 • • • • • IP Phones: Wired and Wireless Optical Modules Optical Networking: Video Over Fiber and EPON Private Branch Exchange (PBX) WiMAX and Wireless Infrastructure Equipment 3 Description The SN74CB3Q3125 device is a high-bandwidth FET bus switch that uses a charge pump to elevate the gate voltage of the pass transistor, thus 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 SN74CB3Q3125 device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Device Information(1) PART NUMBER SN74CB3Q3125 PACKAGE BODY SIZE (NOM) VQFN (14) 3.50 mm × 3.50 mm SSOP (16) 4.90 mm × 3.90 mm TSSOP (16) 5.00 mm × 4.40 mm TVSOP (16) 4.40 mm × 3.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Logic Diagram (Positive Logic) 2 1A 3 2A 1 2B SW 4 1OE 2OE 9 3A 12 8 SW 3B 4A 11 SW 4B 13 10 3OE 6 5 1B SW 4OE Pin numbers shown are for the DGV, PW, and RGY packages. 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 (SCDA008). 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 6.7 4 4 4 4 5 5 6 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics .......................................... Switching Characteristics .......................................... Typical Characteristics .............................................. Parameter Measurement Information .................. 7 Detailed Description .............................................. 8 8.1 Overview ................................................................... 8 8.2 Functional Block Diagram ......................................... 8 8.3 Feature Description................................................... 9 8.4 Device Functional Modes.......................................... 9 9 Application and Implementation ........................ 10 9.1 Application Information............................................ 10 9.2 Typical Application ................................................. 10 10 Power Supply Recommendations ..................... 11 11 Layout................................................................... 12 11.1 Layout Guidelines ................................................. 12 11.2 Layout Example .................................................... 12 12 Device and Documentation Support ................. 13 12.1 12.2 12.3 12.4 12.5 Documentation Support ........................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 13 13 13 13 13 13 Mechanical, Packaging, and Orderable Information ........................................................... 13 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (March 2005) to Revision C Page • Added Pin Functions table, ESD Ratings table, Thermal Information table, Detailed Description section, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section................................................................ 1 • Deleted Ordering Information table. ....................................................................................................................................... 1 2 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 5 Pin Configuration and Functions 13 3 12 4 11 5 10 6 9 7 8 VCC 4OE 4A 4B 3OE 3A 3B 1 1A 1B 2OE 2A 2B VCC 14 2 14 13 4OE 2 12 4A 3 4B 10 3OE 9 3A 11 4 5 6 7 8 3B 1 GND 1OE 1A 1B 2OE 2A 2B GND RGY Package 14-Pin VQFN Top View 1OE DGV, PW Packages 14-Pin TVSOP, TSSOP Top View DBQ Package 16-Pin SSOP Top View NC 1OE 1A 1B 2OE 2A 2B GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 4OE 4A 4B 3OE 3A 3B NC NC - No internal connection Pin Functions PIN I/O DESCRIPTION DGV, PW, RGY DBQ 1OE 1 2 I 1A 2 3 I/O Channel 1A I/O 1A 1B 3 4 I/O Channel 1B I/O 1B 2OE 4 5 I 2A 5 6 I/O Channel 2A I/O 2A 2B 6 7 I/O Channel 2B I/O 2B GND 7 8 — Ground 3B 8 10 I/O Channel 3B I/O 3B 3A 9 11 I/O Channel 3A I/O 3B 3OE 10 12 I 4B 11 13 I/O Channel 4B I/O 4B 4A 12 14 I/O Channel 4A I/O 4B 4OE 13 15 I NC — 1, 9 — No Connect VCC 14 16 — Power NAME Output Enable (Active Low) Output Enable (Active Low) Output Enable (Active Low) Output Enable (Active Low) Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 3 SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT –0.5 4.6 V VIN Control input voltage (2) (3) –0.5 7 V VI/O Switch I/O voltage (2) (3) (4) –0.5 7 V II/K Control input clamp current VIN < 0 –50 mA II/OK I/O port clamp current VI/O < 0 –50 mA IIO ON-state switch current (5) ±64 mA Continuous current through VCC or GND ±100 mA VCC Supply voltage TJ Junction temperature Tstg Storage temperature (1) (2) (3) (4) (5) 150 –65 °C 150 Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. 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. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) +2000 Charged-device model (CDM), per JEDEC specification JESD22C101 (2) +1000 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) (1) VCC Supply voltage VIH High-level control input voltage VIL Low-level control input voltage VI/O Data input and output voltage TA Operating free-air temperature (1) MIN MAX UNIT 2.3 3.6 VCC = 2.3 V to 2.7 V 1.7 5.5 V 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 (SCBA004). 6.4 Thermal Information SN74CB3Q3257 THERMAL METRIC (1) RθJA (1) 4 Junction-to-ambient thermal resistance DBQ (SSOP) DGV (TVSOP) PW (TSSOP) RGY (VQFN) 16 PINS 14 PINS 14 PINS 14 PINS 90 127 113 47 UNIT °C/W For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 6.5 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) (1) PARAMETER VIK TEST CONDITIONS MIN VCC = 3.6 V, II = –18 mA VCC = 3.6 V, VIN = 0 to 5.5 V IOZ (3) 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 VCC = 3.6 V, II/O = 0, Switch ON or OFF, VIN = VCC or GND Other inputs at VCC or GND IIN Control inputs ICC 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, Cin 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, Cio(ON) VCC = 3.3 V, ron (6) VCC = 3 V (1) (2) (3) (4) (5) (6) UNIT –1.8 V ±1 µA ±1 µA 1 µA 1 mA 0.3 30 µA 0.04 0.2 mA/ MHz 2.5 3.5 pF VI/O = 5.5 V, 3.3 V, or 0 4 5 pF Switch ON, VIN = VCC or GND, VI/O = 5.5 V, 3.3 V, or 0 8 10 pF VI = 0, IO = 30 mA 4 8 VI = 1.7 V, IO = –15 mA 4 9 VI = 0, IO = 30 mA 4 6 VI = 2.4 V, IO = –15 mA 4 8 Control input switching at 50% duty cycle VCC = 2.3 V, TYP at VCC = 2.5 V TYP (2) MAX 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. 6.6 Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 3) VCC = 2.5 V ± 0.2 V VCC = 3.3 V ± 0.3 V FROM (INPUT) TO (OUTPUT) f OE (1) OE A or B 10 20 MHz tpd (2) A or B B or A 0.12 0.2 ns ten OE A or B 1.5 6.7 1.5 6.6 ns tdis OE A or B 1 4.6 1 5.3 ns PARAMETER (1) (2) MIN MAX MIN MAX UNIT 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 © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 5 SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 6.7 Typical Characteristics At TA = 25°C and VCC = 3.3 V, unless otherwise noted. 12 16 10 12 Supply Current (mA) On-State Resistance (:) 14 10 8 6 4 6 4 2 2 One OE Switching 0 0 0 0.5 1 1.5 2 2.5 3 3.5 Input Voltage (V) 4 4.5 5 0 2 4 D001 IO = –15 mA 6 8 10 12 14 16 OE Switching Frequency (MHz) 18 20 D002 A and B Ports Open Figure 1. Typical On-State Resistance vs Input Voltage 6 8 Figure 2. Typical Supply Current vs OE Switching Frequency Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 7 Parameter Measurement Information VCC Input Generator VIN 50 Ω 50 Ω VG1 TEST CIRCUIT DUT 2 × VCC Input Generator S1 RL VO VI 50 Ω 50 Ω VG2 RL CL (see Note A) TEST VCC S1 RL VI CL t pd(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 t PLZ/t PZL 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 t PHZ/t PZH 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 t PLH VCC/2 VCC VCC/2 VCC/2 VOL t PHZ Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELA Y TIMES (t pd(s) ) VOL + V∆ VOL t PZH VOH Output t PLZ Output Waveform 1 S1 at 2 × VCC (see Note B) t PHL VCC/2 0V t PZL Output Control (VIN) Open GND VOH VCC/2 VOH − V∆ 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES 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 ONstate 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 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 7 SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 8 Detailed Description 8.1 Overview The SN74CB3Q3125 device 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 SN74CB3Q3125 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 SN74CB3Q3125 device provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems. The SN74CB3Q3125 device is organized as four 1-bit bus switches with separate output-enable (1OE, 2OE, 3OE, 4OE) inputs. It can be used as four 1-bit bus switches or as one 4-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. B A VCC Charge Pump EN(1) Figure 4. Simplified Schematic, Each FET Switch (SW) 8.2 Functional Block Diagram 2 1A 3 2A 1 2B SW 4 1OE 2OE 9 3A 12 8 SW 3B 4A 3OE 11 SW 4B 13 10 8 6 5 1B SW 4OE Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 8.3 Feature Description The SN74CB3Q3125 device has a high-bandwidth data path (up to 500 MHz) and has 5-V tolerant I/Os with the device powered up or powered down. It also has low and flat ON-state resistance (ron) characteristics over operating range (ron = 4-Ω Typ). The SN74CB3Q3125 device has rail-to-rail switching on data I/O ports for 0-V to 5-V switching with 3.3-V VCCand 0-V to 3.3-V switching with 2.5-V VCC as well as bidirectional data flow with near-zero propagation delay and low input/output capacitance that minimizes loading and signal distortion (Cio(OFF) = 3.5-pF Typ). The SN74CB3Q3125 device also provides a fast switching frequency (fOE = 20-MHz Max) with data and control inputs that provide undershoot clamp diodes as well as low power consumption (ICC = 0.6-mA Typ). The VCC operating range is from 2.3 V to 3.6 V and the data I/Os support 0-V to 5-V signal levels of (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V). The control inputs can be driven by TTL or 5-V or 3.3-V CMOS outputs, and Ioff supports partial-power-down mode operation. 8.4 Device Functional Modes Table 1 lists the functional modes for the SN74CB3Q3125 device. Table 1. Function Table INPUT OE INPUT/OUTPUT A FUNCTION L B A port = B port H Z Disconnect Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 9 SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The SN74CB3Q3125 device can be used to control up to four channels simultaneously. 9.2 Typical Application The application shown in Figure 5 is a 4-bit bus being controlled. The OE pins are used to control the chip from the bus controller. This is a very generic example and can apply to many situations. If an application requires less than 4 bits, be sure to tie the A side to either high or low on unused channels. Vcc Vcc 1OE 1A 2OE 2A Bus Controller 4 3OE 3A 4OE 1 2 ron 3 1B 6 2B 4 5 ron 4 10 9 ron 8 Device 3B 13 4A 12 GND 0.1 PF 14 ron 11 4B 8 Pin numbers for DGV, PW, RGY packages only Figure 5. Typical Application of the SN74CB3Q3257 9.2.1 Design Requirements The 0.1-µF capacitor must be placed as close as possible to the SN74CB3Q3257 device. 10 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 Typical Application (continued) 9.2.2 Detailed Design Procedure 1. Recommended input conditions: – For specified high and low levels, see VIH and VIL in Recommended Operating Conditions – Inputs and outputs are overvoltage tolerant, which slows them to go as high as 5.5 V at any valid VCC 2. Recommended output conditions: – Load currents must not exceed ±64 mA per channel 3. Frequency selection criterion: – Added trace resistance or capacitance can reduce maximum frequency capability; use layout practices as directed in Layout 9.2.3 Application Curve 5 Voltage (V) 4 3 2 1 Vin Vout 0 0 200 400 600 800 Time (ps) 1000 1200 C001 Figure 6. Propagation Delay (tpd) Simulation Result at VCC = 3.3 V 10 Power Supply Recommendations The power supply can be any voltage between the minimum and maximum supply voltage rating listed in the Absolute Maximum Ratings table. Each VCC terminal should have a good bypass capacitor to prevent power disturbance. For devices with a single supply, a 0.1-μF bypass capacitor is recommended. If multiple pins are labeled VCC, then a 0.01-μF or 0.022-μF capacitor is recommended for each VCC because the VCC pins are tied together internally. For devices with dualsupply pins operating at different voltages, for example VCC and VDD, a 0.1-µF bypass capacitor is recommended for each supply pin. To reject different frequencies of noise, use multiple bypass capacitors in parallel. Capacitors with values of 0.1 μF and 1 μF are commonly used in parallel. The bypass capacitor must be installed as close to the power terminal as possible for best results. Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 11 SN74CB3Q3125 SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 www.ti.com 11 Layout 11.1 Layout Guidelines Reflections and matching are closely related to the loop antenna theory but are different enough to be discussed separately from the theory. When a PCB trace turns a corner at a 90° angle, a reflection can occur. A reflection occurs primarily because of the change of width of the trace. At the apex of the turn, the trace width increases to 1.414 times the width. This increase upsets the transmission-line characteristics, especially the distributed capacitance and self-inductance of the trace, which results in the reflection. Not all PCB traces can be straight; therefore, some traces must turn corners. Figure 7 shows progressively better techniques of rounding corners. Only the last example (BEST) maintains constant trace width and minimizes reflections. 11.2 Layout Example BETTER BEST 2W WORST 1W min. W Figure 7. Trace Example 12 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation see the following: • Implications of Slow or Floating CMOS Inputs, SCBA004 • Selecting the Right Texas Instruments Signal Switch, SZZA030 12.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 12.4 Electrostatic Discharge Caution 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. 12.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: SN74CB3Q3125 13 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) 74CB3Q3125DBQRE4 ACTIVE SSOP DBQ 16 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 BU125 Samples SN74CB3Q3125DBQR ACTIVE SSOP DBQ 16 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 BU125 Samples SN74CB3Q3125DGVR ACTIVE TVSOP DGV 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BU125 Samples SN74CB3Q3125PW ACTIVE TSSOP PW 14 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BU125 Samples SN74CB3Q3125PWR ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BU125 Samples SN74CB3Q3125PWRE4 ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BU125 Samples SN74CB3Q3125RGYR ACTIVE VQFN RGY 14 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 BU125 Samples (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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