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SN74HCS72QPWRQ1

SN74HCS72QPWRQ1

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    TSSOP14

  • 描述:

    IC FF D-TYPE DUAL 2BIT 14TSSOP

  • 数据手册
  • 价格&库存
SN74HCS72QPWRQ1 数据手册
Product Folder Order Now Technical Documents Support & Community Tools & Software SN74HCS72-Q1 SCLS774 – OCTOBER 2019 SN74HCS72-Q1 Automotive Qualified Schmitt-Trigger Input Dual D-Type Negative-Edge-Triggered Flip-Flops With Clear and Preset 1 Features 3 Description • This device contains two independent D-type negative-edge-triggered flip-flops. All inputs include Schmitt-triggers, allowing for slow or noisy input signals. A low level at the preset (PRE) input sets the output high. A low level at the clear (CLR) input resets the output low. Preset and clear functions are asynchronous and not dependent on the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs (Q, Q) on the negative-going edge of the clock (CLK) pulse. Following the hold-time interval, data at the data (D) input can be changed without affecting the levels at the outputs (Q, Q). 1 • • • • AEC-Q100 Qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C, TA – Device HBM ESD Classification Level 2 – Device CDM ESD Classifcation Level C6 Wide operating voltage range: 2 V to 6 V Schmitt-trigger inputs allow for slow or noisy input signals Low power consumption – Typical ICC of 100 nA – Typical input leakage current of ±100 nA ±7.8-mA output drive at 5 V Device Information(1) 2 Applications • • • • PART NUMBER SN74HCS72QDRQ1 Convert a momentary switch to a toggle switch Input slow edge-rate signals Operate in noisy environments Enable CAN Controller Power with wake-up pattern PACKAGE SOIC (14) SN74HCS72QPWRQ1 TSSOP (14) BODY SIZE (NOM) 8.70 mm x 3.90 mm 5.00 mm x 4.40 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Benefits of Schmitt-trigger Inputs Voltage Output Current Voltage Current Output Input Voltage Voltage Output Voltage Time Current Response Waveforms Time Time Input Voltage Output Schmitt-trigger CMOS Input Time Time Current Response Waveforms Supply Current Standard CMOS Input Supply Current Input Voltage Supports Slow Inputs Input Voltage Noise Rejection Input Voltage Input Voltage Waveforms Input Voltage Low Power Time 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. SN74HCS72-Q1 SCLS774 – OCTOBER 2019 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 6.8 4 4 4 4 5 5 6 7 Absolute Maximum Ratings ...................................... ESD Ratings.............................................................. Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Switching Characteristics .......................................... Timing Characteristics............................................... Typical Characteristics .............................................. 8.3 Feature Description................................................... 9 8.4 Device Functional Modes........................................ 10 9 Application and Implementation ........................ 11 9.1 Application Information .......................................... 11 9.2 Typical Application ................................................. 11 10 Power Supply Recommendations ..................... 13 11 Layout................................................................... 13 11.1 Layout Guidelines ................................................. 13 11.2 Layout Example .................................................... 13 12 Device and Documentation Support ................. 14 12.1 12.2 12.3 12.4 12.5 12.6 Parameter Measurement Information .................. 8 Detailed Description .............................................. 9 Documentation Support ........................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 14 14 14 14 14 14 13 Mechanical, Packaging, and Orderable Information ........................................................... 14 8.1 Overview ................................................................... 9 8.2 Functional Block Diagram ......................................... 9 4 Revision History 2 DATE REVISION NOTES October 2019 * Initial release. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 5 Pin Configuration and Functions D and PW Package 14-Pin SOIC and TSSOP Top View 1CLR 1D 1 14 VCC 2 13 2CLR 1CLK 3 12 1PRE 4 11 2D 2CLK 1Q 5 10 1Q 6 9 2Q GND 7 8 2Q 2PRE Pin Functions PIN TYPE DESCRIPTION NAME NO. 1CLR 1 Input Clear for channel 1, active low 1D 2 Input Data for channel 1 1CLK 3 Input Clock for channel 1, falling edge triggered 1PRE 4 Input Preset for channel 1, active low 1Q 5 Output Output for channel 1 1Q 6 Output Inverted output for channel 1 GND 7 — 2Q 8 Output Inverted output for channel 2 2Q 9 Output Output for channel 2 2PRE 10 Input Preset for channel 2, active low 2CLK 11 Input Clock for channel 2, falling edge triggered 2D 12 Input Data for channel 2 2CLR 13 Input Clear for channel 2, active low VCC 14 — Copyright © 2019, Texas Instruments Incorporated Ground Positive supply Submit Documentation Feedback 3 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) VCC Supply voltage IIK Input clamp current (2) (2) IOK Output clamp current IO Continuous output current MIN MAX –0.5 7 UNIT V VI < 0 or VI > VCC + 0.5 V ±20 mA VO < 0 or VO > VCC + 0.5 V ±20 mA VO = 0 to VCC ±25 mA Continuous current through VCC or GND ±50 mA Tj Junction temperature (3) 150 °C Tstg Storage temperature 150 °C (1) (2) (3) –65 Stresses beyond those listed under Absolute Maximum Rating 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 Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. Guaranteed by design 6.2 ESD Ratings VALUE V(ESD) (1) Electrostatic discharge Human body model (HBM), per AEC Q100-002 (1) HBM ESD Classification Level 2 ±4000 Charged device model (CDM), per AEC Q100011 CDM ESD Classification Level C4B ±1000 UNIT V AEC Q100-002 indicate that HBM stressing shall be in accordrance with the ANSI/ESDA/JEDEC JS-001 specification. 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN NOM 5 MAX UNIT VCC Supply voltage 2 6 V VI Input voltage 0 VCC V VO Output voltage 0 VCC V Δt/Δv Input transition rise and fall rate TA Ambient temperature Unlimited –40 125 ns/V °C 6.4 Thermal Information SN74HCS72-Q1 THERMAL METRIC D (SOIC) PW (TSSOP) 14 PINS 14 PINS UNIT 133.6 151.7 °C/W 89 79.4 °C/W RθJA Junction-to-ambient thermal resistance RθJC(top) Junction-to-case (top) thermal resistance RθJB Junction-to-board thermal resistance 89.5 94.7 °C/W ΨJT Junction-to-top characterization parameter 45.5 25.2 °C/W ΨJB Junction-to-board characterization parameter 89.1 94.1 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A N/A °C/W 4 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 6.5 Electrical Characteristics over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted) PARAMETER VT+ VT- ΔVT VOH TEST CONDITIONS Positive switching threshold Negative switching threshold Hysteresis (VT+ - VT-) (1) High-level output voltage VI = VIH or VIL VCC MIN TYP MAX UNIT 2V 0.7 1.5 4.5 V 1.7 3.15 6V 2.1 4.2 2V 0.3 1.0 4.5 V 0.9 2.2 6V 1.2 3.0 2V 0.2 1.0 4.5 V 0.4 1.4 6V 0.6 1.6 IOH = -20 µA 2 V to 6 V IOH = -6 mA 4.5 V IOH = -7.8 mA 6V IOL = 20 µA 2 V to 6 V IOL = 6 mA 4.5 V IOL = 7.8 mA VCC – 0.1 V V V VCC – 0.002 4 4.3 5.4 5.75 V 0.002 0.1 0.18 0.30 VOL Low-level output voltage VI = VIH or VIL 6V 0.22 0.33 II Input leakage current VI = VCC or 0 6V ±100 ±1000 nA ICC Supply current VI = VCC or 0, IO = 0 6V 0.1 2 µA Ci Input capacitance 5 pF Cpd Power dissipation capacitance per gate (1) 2 V to 6 V No load 2 V to 6 V 10 V pF Guaranteed by design. 6.6 Switching Characteristics CL = 50 pF; over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted). See Parameter Measurement Information PARAMETER fmax FROM (INPUT) TO (OUTPUT) Max switching frequency MIN TYP 2V VCC 20 31 4.5 V 64 95 6V 74 105 2V PRE or CLR tpd Propagation delay CLK tt (1) Q or Q Transition-time (1) Q or Q Q or Q MAX MHz 19 42 8 19 6V 7 15 2V 19 42 4.5 V 8 19 6V 7 15 2V 9 16 4.5 V 5 9 6V 4 8 4.5 V UNIT ns ns ns tt = tr or tf, whichever is larger Copyright © 2019, Texas Instruments Incorporated Submit Documentation Feedback 5 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com 6.7 Timing Characteristics CL = 50 pF; over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted). See Parameter Measurement Information. PARAMETER fclock VCC Clock frequency PRE or CLR low tw Pulse duration CLK high or low Data tsu Setup time before CLK low PRE or CLR inactive th 6 Hold time Submit Documentation Feedback Data after CLK ↓ MIN TYP MAX 2V 20 4.5 V 64 6V 74 2V 8 7 4.5 V 7 5 6V 7 5 2V 10 5 9 3 4.5 V 6V 8 2 2V 16 11 4.5 V 6 1 6V 3 1 2V 7 4.5 V 0 6V 0 2V 5 4.5 V 3 6V 2 UNIT MHz ns ns ns ns ns Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 6.8 Typical Characteristics TA = 25°C 70 46 VCC = 2 V VCC = 3.3 V VCC = 4.5 V VCC = 6 V Output Resistance (:) 42 VCC = 2 V VCC = 3.3 V VCC = 4.5 V VCC = 6 V 65 Output Resistance (:) 44 40 38 36 34 32 60 55 50 45 40 30 35 28 26 30 0 2.5 5 7.5 10 12.5 15 17.5 Output Sink Current (mA) 20 22.5 25 Figure 1. Output driver resistance in LOW state. 0 ICC ± Supply Current (mA) VCC = 2.5 V 0.14 VCC = 3.3 V ICC ± Supply Current (mA) VCC = 2 V 0.16 0.12 0.1 0.08 0.06 0.04 0.02 0 0 0.5 1 1.5 2 2.5 VI ± Input Voltage (V) 3 3.5 Figure 3. Supply current across input voltage, 2-, 2.5-, and 3.3-V supply Copyright © 2019, Texas Instruments Incorporated 5 7.5 10 12.5 15 17.5 Output Source Current (mA) 20 22.5 25 Figure 2. Output driver resistance in HIGH state. 0.2 0.18 2.5 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 VCC = 4.5 V VCC = 5 V VCC = 6 V 0 0.5 1 1.5 2 2.5 3 3.5 4 VI ± Input Voltage (V) 4.5 5 5.5 6 Figure 4. Supply current across input voltage, 4.5-, 5-, and 6-V supply Submit Documentation Feedback 7 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com 7 Parameter Measurement Information Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tt < 2.5 ns. For clock inputs, fmax is measured when the input duty cycle is 50%. The outputs are measured one at a time with one input transition per measurement. VCC RL From Output Under Test tw VCC Test Point S1 Input 50% 50% 0V Figure 6. Voltage Waveforms, Pulse Duration CL(1) S2 CL includes probe and test-fixture capacitance. Figure 5. Load Circuit VCC VCC Clock Input 50% Input 50% 50% 0V tsu 0V tPHL(1) tPLH(1) th VCC Data Input 50% VOH 50% Output 50% 50% 0V VOL Figure 7. Voltage Waveforms, Setup and Hold Times tPLH(1) tPHL(1) VOH Output 50% 50% VOL Voltage Waveforms, Propagation Delay specifications tPLH and tPHL are the same as tpd. Figure 8. Voltage Waveforms Propagation Delays 90% VCC 90% Input 10% 10% tf tr 90% 0V 90% VOH Output 10% tr 10% tf VOL Figure 9. Voltage Waveforms, Input and Output Transition Times 8 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 8 Detailed Description 8.1 Overview Figure 10 describes the SN74HCS72-Q1. As the SN74HCS72-Q1 is a dual D-Type negative-edge-triggered flipflop with clear and preset, the diagram below describes one of the two device flip-flops. 8.2 Functional Block Diagram CLK C C PRE C Q C C D C C C C Q C CLR Figure 10. Logic Diagram (Positive Logic) for one channel of SN74HCS72-Q1 8.3 Feature Description 8.3.1 Balanced CMOS Push-Pull Outputs A balanced output allows the device to sink and source similar currents. The drive capability of this device may create fast edges into light loads so routing and load conditions should be considered to prevent ringing. Additionally, the outputs of this device are capable of driving larger currents than the device can sustain without being damaged. It is important for the output power of the device to be limited to avoid damage due to overcurrent. The electrical and thermal limits defined the in the Absolute Maximum Ratings must be followed at all times. 8.3.2 CMOS Schmitt-Trigger Inputs Standard CMOS inputs are high impedance and are typically modeled as a resistor in parallel with the input capacitance given in the Electrical Characteristics. The worst case resistance is calculated with the maximum input voltage, given in the Absolute Maximum Ratings, and the maximum input leakage current, given in the Electrical Characteristics, using ohm's law (R = V ÷ I). The Schmitt-trigger input architecture provides hysteresis as defined by ΔVT in the Electrical Characteristics, which makes this device extremely tolerant to slow or noisy inputs. While the inputs can be driven much slower than standard CMOS inputs, it is still recommended to properly terminate unused inputs. Driving the inputs slowly will also increase dynamic current consumption of the device. For additional information regarding Schmitt-trigger inputs, please see Understanding Schmitt Triggers. Copyright © 2019, Texas Instruments Incorporated Submit Documentation Feedback 9 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com Feature Description (continued) 8.3.3 Positive and Negative Clamping Diodes The inputs and outputs to this device have both positive and negative clamping diodes as depicted in Figure 11. CAUTION Voltages beyond the values specified in the Absolute Maximum Ratings table can cause damage to the device. The input negative-voltage and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed. Device VCC +IIK +IOK Logic Input Output -IIK -IOK GND Figure 11. Electrical Placement of Clamping Diodes for Each Input and Output 8.4 Device Functional Modes Table 1 lists the functional modes of the SN74HCS72-Q1. Table 1. Function Table INPUTS (1) 10 OUTPUTS PRE CLR CLK D Q Q L H X X H L H L X X L H L L X X H (1) H (1) H H ↓ H H L H H ↓ L L H H H L X Q0 Q0 H H H X Q0 Q0 This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 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 SN74HCS72-Q1 is an ideal device for taking a CAN wake-up request and converting it to a power supply enable due to its low power consumption and noise rejecting inputs, which eliminate false triggers. CAN communication can occur when the vehicle ignition is off. Therefore, many circuits are designed to work in a standby or low power mode. Because a CAN wake-up request causes the RX pin to pulse LOW, the SN74HCS72-Q1 will trigger off the falling edge enabling the power for the CAN controller. Then the CAN controller powers on for the incoming communication. When communications are finished, the controller sends a reset pulse to the SN74HCS72-Q1 and CAN transceiver putting the circuit back into a standby mode. 9.2 Typical Application VCC CAN Controller Power CAN Transceiver RX VCC PRE CLK R1 nSTB TX EN VCC C1 R2 D Q CLR Q GND RX CAN Controller I/O TX Figure 12. Power Enable Using CAN Wake-up Request 9.2.1 Design Requirements The SN74HCS72-Q1 device allows flexibility by having complementary outputs for active-high or active-low enables. The supply should be selected such that the device is always powered along with the CAN transceiver. The same supply for both devices is recommended. With the SN74HCS72-Q1, a power on reset circuit only requires a resistor (R) and capacitor (C) to create a delay. The R and C values create a delay that is approximately 2.2×RC. In this application, it is desired to have the output (Q) in the HIGH state at startup, so R1 and C1 are connected directly to the CLR pin, as shown in Figure 12. A second resistor is needed to limit the current into the CAN controller when it sets the circuit back into standby mode. It is required for the R1 resistor to be at least ten times larger than R2 to avoid a divider circuit (R2 ≤ 10R1). The D input can be tied either to VCC or ground depending on the desired implementation. In this example, it is tied to VCC to obtain a HIGH signal from Q when a wake-up request occurs. Copyright © 2019, Texas Instruments Incorporated Submit Documentation Feedback 11 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com Typical Application (continued) 9.2.1.1 Output Considerations In general, the load needs to be considered in the design to determine if the device will have the capability to drive it. For this application, we assume that the flip-flop output is transmitting over a relatively short trace (under 10 cm) to a CMOS input. Primary load factors to consider: • Load Capacitance: approximately 15 pF – See the Switching Characteristics section for the capacitive loads tested with this device. – Increasing capacitance will proportionally increase output transition times. – Decreasing capacitance will proportionally decrease output transition times, and can produce ringing due to very fast transition rates. A 25-Ω resistor can be added in series with the output if ringing needs to be dampened. • Load Current: expected maximum of 10 µA – Leakage current into connected devices. – Parasitic current from other components. – Resistive load current. • Output Voltage: see Electrical Characteristics for output voltage ratings at a given current. – Output HIGH (VOH) and output LOW (VOL) voltage levels affect the input voltage, VIH and VIL, respectively, to subsequent devices. 9.2.1.2 Input Considerations The SN74HCS72-Q1 has Schmitt-trigger inputs. Schmitt-trigger inputs have no limitation on transition rate, however the input voltage must be larger than VT+(max) to be guaranteed to be read as a logic high, and below VT-(min) to be guaranteed to be read as a logic low, as defined in the Electrical Characteristics. Do not exceed the values specified in the Absolute Maximum Ratings or the device could be damaged. 9.2.1.3 Timing Considerations The SN74HCS72-Q1 is a clocked device. As such, it requires special timing considerations to ensure normal operation. Primary timing factors to consider: • Maximum clock frequency: the maximum operating clock frequency defined in Timing Characteristics is the maximum frequency at which the device is guaranteed to function. This value refers specifically to the triggering waveform, measuring from one trigger level to the next. • Pulse duration: ensure that the triggering event duration is larger than the minimum pulse duration, as defined in the Timing Characteristics. • Setup time: ensure that the data has changed at least one setup time prior to the triggering event, as defined in the Timing Characteristics. • Hold time: ensure that the data remains in the desired state at least one hold time after the triggering event, as defined in the Timing Characteristics. 9.2.2 Detailed Design Procedure 1. Recommended Input Conditions: – Input signals to Schmitt-trigger inputs, like those found on the HCS family of devices, can support unlimited edge rates. – Input thresholds are listed in the Electrical Characteristics. – Inputs include positive clamp diodes. Input voltages can exceed the device's supply so long as the clamp current ratings are observed from the Absolute Maximum Ratings. Do not exceed the absolute maximum voltage rating of the device or it could be damaged. 2. Recommended Output Conditions: – Load currents should not exceed the value listed in the Absolute Maximum Ratings. – Series resistors on the output may be used if the user desires to slow the output edge signal or limit the 12 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated SN74HCS72-Q1 www.ti.com SCLS774 – OCTOBER 2019 Typical Application (continued) output current. 9.2.3 Application Curve CAN WUP* Q *Wake-up Pattern Commu nicatio n Finishe d RX I/O Figure 13. Application timing diagram 10 Power Supply Recommendations The power supply can be any voltage between the minimum and maximum supply voltage rating located in the Absolute Maximum Ratings table. Each VCC terminal should have a bypass capacitor to prevent power disturbance. For this device, a 0.1-μF capacitor is recommended. It is acceptable to parallel multiple bypass caps to reject different frequencies of noise. The 0.1-μF and 1-μF capacitors are commonly used in parallel. The bypass capacitor should be installed as close to the power terminals as possible for best results. 11 Layout 11.1 Layout Guidelines In many cases, functions or parts of functions of digital logic devices are unused. Some examples are when only two inputs of a triple-input AND gate are used, or when only 3 of the 4 channels are used. Such input pins should not be left completely unconnected because the unknown voltages result in undefined operational states. Specified in Figure 14 are rules that must be observed under all circumstances. All unused inputs of digital logic devices must be connected to a high or low bias to prevent them from floating. The logic level that must be applied to any particular unused input depends on the function of the device. Generally they are tied to GND or VCC, whichever makes more sense or is more convenient. It is recommended to float outputs unless the part is a transceiver. If the transceiver has an output enable pin, it disables the output section of the part when asserted. This pin keeps the input section of the I/Os from being disabled and floated. 11.2 Layout Example GND VCC Recommend GND flood fill for improved signal isolation, noise reduction, and thermal dissipation 0.1 F Avoid 90° corners for signal lines Bypass capacitor placed close to the device 1CLR 1 14 VCC Unused inputs tied to VCC 1D 2 13 2CLR 1CLK 3 12 2D 1PRE 4 11 2CLK 1Q 5 10 2PRE 1Q 6 9 2Q GND 7 8 2Q Unused output left floating Figure 14. Layout Example Copyright © 2019, Texas Instruments Incorporated Submit Documentation Feedback 13 SN74HCS72-Q1 SCLS774 – OCTOBER 2019 www.ti.com 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation see the following: • Texas Instruments, Implications of Slow or Floating CMOS Inputs application report • Texas Instruments, Reduce Noise and Save Power with the New HCS Logic Family application report • Texas Instruments, Understanding Schmitt Triggers application report 12.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 12.3 Community Resources TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is 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. 12.4 Trademarks E2E is a trademark of Texas Instruments. 12.5 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. 12.6 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. 14 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) (4/5) (6) SN74HCS72QDRQ1 ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 HCS72Q1 SN74HCS72QPWRQ1 ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 HCS72Q (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
SN74HCS72QPWRQ1 价格&库存

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SN74HCS72QPWRQ1
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