SN54AHCT174, SN74AHCT174 HEX D-TYPE FLIP-FLOPS WITH CLEAR
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1 Inputs Are TTL-Voltage Compatible EPIC (Enhanced-Performance Implanted CMOS) Process Contain Six Flip-Flops With Single-Rail s Applicatio Include: Buffer/Storage Registers Shift Registers Pattern Generators Latch-Up Performance Exceeds 20 ma Per JESD 7 ESD Protection Exceeds 200 Per MIL-STD-88, Method 0; Exceeds 20 Using Machine Model (C = 200 pf, R = 0) Package Optio Include Plastic Small-Outline (D), Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) DIPs description These monolithic positive-edge-triggered D-type flip-flops have a direct clear () input. Information at the data (D) inputs meeting the No internal connection setup time requirements is traferred to the outputs on the positive-going edge of the clock () pulse. Clock triggering occurs at a particular voltage level and is not directly related to the traition time of the positive-going edge of. When is at either the high or low level, the D input has no effect at the output. The SN4AHCT74 is characterized for operation over the full military temperature range of C to 2 C. The SN74AHCT74 is characterized for operation from 40 C to 8 C. FUTION TABLE (each flip-flop) INPUTS OUTPUT D Q L X X L H H H H L L H L X Q0 SN4AHCT74...J OR W PACKAGE SN74AHCT74... D, DB, DGV, N, OR PW PACKAGE (TOP VIEW) SN4AHCT74... FK PACKAGE (TOP VIEW) 2D 2Q D 2D 2Q D Q Q 6Q Q V CC V CC 6Q 6D D Q 4D 4Q 6D D Q 4D Please be aware that an important notice concerning availability, standard warranty, and use in critical applicatio of Texas Itruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Itruments Incorporated. UNLESS OTHERWISE NOTED this document contai PRODUCTION DATA information current as of publication date. Products conform to specificatio per the terms of Texas Itruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 60 DALLAS, TEXAS 726 Copyright 999, Texas Itruments Incorporated
2 logic symbol 9 R C 2D D 4D D 6D Q Q 4Q Q 6Q This symbol is in accordance with ANSI/IEEE Std and IEC Publication Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages. logic diagram (positive logic) 9 C 2 R To Five Other Channels Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages. 2 POST OFFICE BOX 60 DALLAS, TEXAS 726
3 absolute maximum ratings over operating free-air temperature range Supply voltage range, V CC V to 7 V Input voltage range, V I (see Note ) V to 7 V voltage range, V O (see Note ) V to V CC + 0. V Input clamp current, I IK (V I < 0) ma clamp current, I OK (V O < 0 or V O > V CC ) ±20 ma Continuous output current, I O (V O = 0 to V CC ) ±2 ma Continuous current through V CC or ±0 ma Package thermal impedance, θ JA (see Note 2): D package C/W DB package C/W DGV package C/W N package C/W PW package C/W Storage temperature range, T stg C to 0 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 conditio beyond those indicated under recommended operating conditio is not implied. Exposure to absolute-maximum-rated conditio for extended periods may affect device reliability. NOTES:. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD, except for through-hole packages, which use a trace length of zero. recommended operating conditio (see Note ) SN4AHCT74 SN74AHCT74 MIN MAX MIN MAX VCC Supply voltage V VIH High-level input voltage 2 2 V VIL Low-level input voltage V VI Input voltage V VO voltage CC CC V IOH High-level output current 8 8 ma IOL Low-level output current 8 8 ma t v Input traition rise or fall time /V TA Operating free-air temperature C NOTE : All unused inputs of the device must be held at VCC or to eure proper device operation. Refer to the TI application report, Implicatio of Slow or Floating CMOS Inputs, literature number SCBA004. PRODUCT PREVIEW information concer products in the formative or design phase of development. Characteristic data and other specificatio are design goals. Texas Itruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 60 DALLAS, TEXAS 726
4 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC IOH = 0 A IOH = 8 ma IOL = 0 A IOL = 8 ma 4V 4. 4V 4. TA = 2 C SN4AHCT74 SN74AHCT74 MIN TYP MAX MIN MAX MIN MAX II VI = VCC or. V ±0. ± ± A ICC VI = VCC or, IO = 0. V A ICC One input at.4 V, Other inputs at VCC or. V... A Ci VI = VCC or V pf This is the increase in supply current for each input at one of the specified TTL voltage levels rather than or VCC. timing requirements over recommended operating free-air temperature range, V CC = V ± 0. V (unless otherwise noted) tw tsu Pulse duration Setup time before TA = 2 C SN4AHCT74 SN74AHCT74 MIN MAX MIN MAX MIN MAX low high or low Data inactive... th Hold time, data after V V switching characteristics over recommended operating free-air temperature range, V CC = V ± 0. V (unless otherwise noted) (see Figure ) PARAMETER fmax FROM TO OUTPUT (INPUT) (OUTPUT) CAPACITAE TA = 2 C SN4AHCT74 MIN TYP MAX MIN CL = pf* CL = 0 pf 80 6 * Any Q CL = pf * * Any Q CL = pf MAX Any Q CL = 0 pf 8..4 Any Q CL = 0 pf * On products compliant to MIL-PRF-8, this parameter is not production tested MHz PRODUCT PREVIEW information concer products in the formative or design phase of development. Characteristic data and other specificatio are design goals. Texas Itruments reserves the right to change or discontinue these products without notice. 4 POST OFFICE BOX 60 DALLAS, TEXAS 726
5 switching characteristics over recommended operating free-air temperature range, V CC = V ± 0. V (unless otherwise noted) (see Figure ) PARAMETER fmax FROM TO OUTPUT (INPUT) (OUTPUT) CAPACITAE TA = 2 C SN74AHCT74 MIN TYP MAX MIN CL = pf CL = 0 pf 80 6 Any Q CL = pf Any Q CL = pf Any Q CL = 0 pf Any Q CL = 0 pf tsk(o) CL = 0 pf Skew between any two outputs of the same package switching in the same direction noise characteristics V CC = V, C L = 0 pf, T A = 2 C (see Note 4) PARAMETER SN74AHCT74 MAX MIN TYP MAX (P) Quiet output, maximum dynamic 0.8 V (V) Quiet output, minimum dynamic 0.8 V (V) Quiet output, minimum dynamic 4 V VIH(D) High-level dynamic input voltage 2 V VIL(D) Low-level dynamic input voltage 0.8 V NOTE: 4. Characteristics are for surface-mount packages only. operating characteristics, T A = 2 C MHz PARAMETER TEST CONDITIONS TYP Cpd Power dissipation capacitance No load, f = MHz 28 pf POST OFFICE BOX 60 DALLAS, TEXAS 726
6 PARAMETER MEASUREMENT INFORMATION From Under Test CL (see Note A) Test Point From Under Test CL (see Note A) RL = kω S VCC Open TEST / tplz/tpzl tphz/tpzh Open Drain S Open VCC VCC LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR -STATE AND OPEN-DRAIN OUTPUTS Input. V tw TAGE WAVEFORMS PULSE DURATION. V V Timing Input Data Input tsu. V th. V. V TAGE WAVEFORMS SETUP AND HOLD TIMES V V Input In-Phase Out-of-Phase. V. V 0% VCC 0% VCC 0% VCC V 0% VCC TAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS Control Waveform S at VCC (see Note B) Waveform 2 S at (see Note B) tpzl tpzh. V tplz 0% VCC tphz 0% VCC. V TAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING V VCC + 0. V 0. V NOTES: A. CL includes probe and jig capacitance. B. Waveform is for an output with internal conditio such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditio 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 MHz, ZO = 0 Ω, tr, tf. D. The outputs are measured one at a time with one input traition per measurement. Figure. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 60 DALLAS, TEXAS 726
7 IMPORTANT NOTICE Texas Itruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditio of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specificatio applicable at the time of sale in accordance with TI s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ( CRITICAL APPLICATIONS ). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. ILUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER S RISK. In order to minimize risks associated with the customer s applicatio, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applicatio assistance or customer product design. TI does not warrant or represent that any licee, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI s publication of information regarding any third party s products or services does not cotitute TI s approval, warranty or endorsement thereof. Copyright 999, Texas Itruments Incorporated
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More informationEN: This Datasheet is presented by the m anufacturer. Please v isit our website for pricing and availability at ore.hu.
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