CD74HC373M

CD54HC373, CD74HC373 SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 CDx4HC373 Octal Transparent D-Type Latches With 3-State Outputs 1 Features 2 Description • • The ’HC373 devices are octal transparent D-type latches designed for 2-V to 6-V VCC operation. • • • 2-V to 6-V VCC operation Wide operating temperature range of –55℃ to 125℃ Balanced propagation delays and transition times Standard outputs drive up to 15 LS-TTL loads Significant power reduction compared to LS-TTL Logic ICs When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of the D inputs. Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) CD74HC373M SOIC (20) 12.80 mm × 7.50 mm CD74HC373E PDIP (20) 25.40 mm × 6.35 mm CD54HC373F CDIP (20) 26.92 mm × 6.92 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Logic Diagram (positive logic) 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. CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 Table of Contents 1 Features............................................................................1 2 Description.......................................................................1 3 Revision History.............................................................. 2 4 Pin Configuration and Functions...................................3 5 Specifications.................................................................. 4 5.1 Absolute Maximum Ratings........................................ 4 5.2 Recommended Operating Conditions(1) .................... 4 5.3 Thermal Information....................................................4 5.4 Electrical Characteristics.............................................5 5.5 Timing Requirements ................................................. 5 5.6 Switching Characteristics ...........................................6 5.7 Operating Characteristics........................................... 6 6 Parameter Measurement Information............................ 7 7 Detailed Description........................................................8 7.1 Overview..................................................................... 8 7.2 Functional Block Diagram........................................... 8 7.3 Device Functional Modes............................................8 8 Power Supply Recommendations..................................9 9 Layout...............................................................................9 9.1 Layout Guidelines....................................................... 9 10 Device and Documentation Support..........................10 10.1 Receiving Notification of Documentation Updates..10 10.2 Support Resources................................................. 10 10.3 Trademarks............................................................. 10 10.4 Electrostatic Discharge Caution..............................10 10.5 Glossary..................................................................10 11 Mechanical, Packaging, and Orderable Information.................................................................... 10 3 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (January 2022) to Revision C (May 2022) Page • Junction-to-ambient thermal resistance values increased. DW was 58 is now 109.1, N was 69 is now 84.6.... 4 Changes from Revision A (April 2003) to Revision B (January 2022) Page • Updated the numbering, formatting, tables, figures, and cross-references throughout the document to reflect modern data sheet standards............................................................................................................................. 1 2 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 4 Pin Configuration and Functions OE 1 20 1Q 2 19 8Q 1D 3 18 8D 7D VCC 2D 4 17 2Q 5 16 7Q 3Q 6 15 6Q 6D 3D 7 14 4D 8 13 5D 4Q 9 12 5Q 10 11 LE GND J, N, or DW package 20-Pin CDIP, PDIP, or SOIC Top View Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 3 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 5 Specifications 5.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)(1) VCC Supply voltage range current(2) MIN MAX –0.5 7 UNIT V IIK Input clamp VI < 0 or VI > VCC ± 20 mA IOK Output clamp current(2) VO < 0 or VO > VCC ± 20 mA IO Continuous output drain current per output VO = 0 to VCC ± 35 mA IO Continuous output source or sink current per output VO = 0 to VCC ± 25 mA Continuous current through VCC or GND ± 50 mA TJ Junction temperature 150 °C Tstg Storage temperature range 150 °C (1) (2) –65 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. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 5.2 Recommended Operating Conditions(1) VCC Supply voltage VCC = 2 V VIH High-level input voltage MIN MAX 2 6 VCC = 4.5 V VI Input voltage VO Output voltage 4.2 0.5 VCC = 4.5 V 1.35 VCC = 6 V 0 Input transition (rise and fall) time TA (1) V 1.8 0 VCC = 2 V tt V 3.15 VCC = 2 V Low-level input voltage V 1.5 VCC = 6 V VIL UNIT VCC V VCC V 1000 VCC = 4.5 V 500 VCC = 6 V 400 Operating free-air temperature –55 125 ns °C All unused 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. 5.3 Thermal Information THERMAL METRIC N (PDIP) 20 PINS 20 PINS UNIT 109.1 84.6 °C/W RθJA Junction-to-ambient thermal resistance RθJC(top) Junction-to-case (top) thermal resistance 76 72.5 °C/W RθJB Junction-to-board thermal resistance 77.6 65.3 °C/W ψJT Junction-to-top characterization parameter 51.5 55.3 °C/W ψJB Junction-to-top characterization parameter 77.1 65.2 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A N/A °C/W (1) 4 (1) DW (SOIC) For more information about traditional and new thermal metrics, see the Semiconductor and IC package thermal metrics application report. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 5.4 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –20 μA VOH VI = VIH or VIL IOH = –6 mA IOH = –7.8 mA VOL TA = 25°C VCC MIN TA = –55°C to 125°C TA = –40°C to 85°C MAX MIN MAX MIN 2V 1.9 1.9 1.9 4.5 V 4.4 4.4 4.4 6V 5.9 5.9 5.9 4.5 V 3.98 3.7 3.84 6V 5.48 5.2 5.34 MAX V 2V 0.1 0.1 0.1 IOL = 20 μA 4.5 V 0.1 0.1 0.1 6V 0.1 0.1 0.1 IOL = 6 mA 4.5 V 0.26 0.4 0.33 6V 0.26 0.4 0.33 VI = VIH or VIL IOL = 7.8 mA UNIT V II VI = VCC or 0 6V ±0.1 ±1 ±1 μA IOZ VO = VCC or 0 6V ±0.5 ±10 ±5 μA ICC VI = VCC or 0 8 160 80 μA Ci IO = 0 6V 10 10 10 pF Co 20 20 20 pF 5.5 Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 6-1) VCC tw tsu th Pulse duration, LE high Setup time, data before LE↓ Hold time, data after LE↓ TA = 25°C MIN TA = –55°C to 125°C MAX MIN MAX TA= –40°C to 85°C MIN 2V 80 120 100 4.5 V 16 24 20 6V 14 20 17 2V 50 75 65 4.5 V 10 15 13 6V 9 13 11 2V 5 5 5 4.5 V 5 5 5 6V 5 5 5 MAX UNIT ns ns ns Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 5 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 5.6 Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 6-1) PARAMETER FROM TO LOAD (INPUT) (OUTPUT) CAPACITANCE D Q CL = 50 pF tpd LE ten tdis OE OE tt Q CL = 50 pF Q CL = 50 pF Q CL = 50 pF Q CL = 50 pF VCC TA = 25°C MIN TA = –55°C to 125°C TA = –40°C to 85°C MAX MIN MAX MIN MAX 2V 150 225 190 4.5 V 30 45 38 6V 26 38 33 2V 175 265 220 4.5 V 35 53 44 6V 30 45 37 2V 150 225 190 4.5 V 30 45 38 6V 26 38 33 2V 150 225 190 4.5 V 30 45 38 6V 26 38 33 2V 60 90 75 4.5 V 12 18 15 6V 10 15 13 UNIT ns ns ns ns 5.7 Operating Characteristics VCC = 5 V, TA = 25℃ PARAMETER Cpd 6 Power dissipation capacitance Submit Document Feedback TYP 51 UNIT pF Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 6 Parameter Measurement Information A. B. C. D. E. F. G. H. I. CL includes probe and test-fixture capacitance. 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. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. For clock inputs, fmaxis measured with the input duty cycle at 50%. The outputs are measured one at a time with one input transition per measurement. tPLZ and tPHZ are the same as tdis. tPZL and tPZH are the same as ten. tPLH and tPHL are the same as tpd. All parameters and waveforms are not applicable to all devices. Figure 6-1. Load Circuit and Voltage Waveforms Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 7 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 7 Detailed Description 7.1 Overview The ’HC373 devices are octal transparent D-type latches designed for 2-V to 6-V VCC operation. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of the D inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. 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. 7.2 Functional Block Diagram 7.3 Device Functional Modes Table 7-1. Function Table(each latch) INPUTS 8 OE LE D OUTPUT Q L H H H L H L L L L X Q0 H X X Z Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 8 Power Supply Recommendations The power supply can be any voltage between the minimum and maximum supply voltage rating located in the Recommended Operating Conditions. Each VCC terminal should have a good bypass capacitor to prevent power disturbance. A 0.1-μF capacitor is recommended for this device. 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 terminal as possible for best results. 9 Layout 9.1 Layout Guidelines When using multiple-input and multiple-channel logic devices inputs must not ever be left floating. In many cases, functions or parts of functions of digital logic devices are unused; for example, when only two inputs of a triple-input AND gate are used or only 3 of the 4 buffer gates are used. Such unused input pins must not be left unconnected because the undefined voltages at the outside connections result in undefined operational states. All unused inputs of digital logic devices must be connected to a logic high or logic low voltage, as defined by the input voltage specifications, 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, the inputs are tied to GND or VCC, whichever makes more sense for the logic function or is more convenient. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 9 CD54HC373, CD74HC373 www.ti.com SCLS452C – FEBRUARY 2001 – REVISED MAY 2022 10 Device and Documentation Support TI offers an extensive line of development tools. Tools and software to evaluate the performance of the device, generate code, and develop solutions are listed below. 10.1 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Subscribe to updates 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. 10.2 Support 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. 10.3 Trademarks TI E2E™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. 10.4 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 10.5 Glossary TI Glossary This glossary lists and explains terms, acronyms, and definitions. 11 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. 10 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: CD54HC373 CD74HC373 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) CD54HC373F ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 CD54HC373F Samples CD54HC373F3A ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8407201RA CD54HC373F3A Samples CD74HC373E ACTIVE PDIP N 20 20 RoHS & Green NIPDAU N / A for Pkg Type -55 to 125 CD74HC373E Samples CD74HC373EE4 ACTIVE PDIP N 20 20 RoHS & Green NIPDAU N / A for Pkg Type -55 to 125 CD74HC373E Samples CD74HC373M ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC373M Samples CD74HC373M96 ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -55 to 125 HC373M 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