SN74AS74AD








  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 • SN54ALS74A, SN54AS74A . . . J PACKAGE SN74ALS74A, SN74AS74A . . . D OR N PACKAGE (TOP VIEW) Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs TYPE TYPICAL MAXIMUM CLOCK FREQUENCY (CL = 50 pF) (MHz) 1CLR 1D 1CLK 1PRE 1Q 1Q GND TYPICAL POWER DISSIPATION PER FLIP-FLOP (mW) ′ALS74A 50 6 ′AS74A 134 26 description 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VCC 2CLR 2D 2CLK 2PRE 2Q 2Q SN54ALS74A, SN54AS74A . . . FK PACKAGE (TOP VIEW) 1D 1CLR NC VCC 2CLR These devices contain two independent positive-edge-triggered D-type flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup-time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2D NC 2CLK NC 2PRE 1Q GND NC 2Q 2Q 1CLK NC 1PRE NC 1Q NC − No internal connection The SN54ALS74A and SN54AS74A are characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74ALS74A and SN74AS74A are characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS OUTPUTS PRE CLR CLK D Q Q L H X X H L H L X X L H L L X X H† H† H H ↑ H H L H H ↑ L L H H H L X Q0 Q0 † The output levels in this configuration are not specified to meet the minimum levels for VOH if the lows at PRE and CLR are near VIL maximum. Furthermore, this configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level. Copyright  1995, Texas Instruments Incorporated     !" # $%&" !#  '%()$!" *!"&+ *%$"# $ " #'&$$!"# '& ",& "&#  &-!# #"%&"# #"!*!* .!!"/+ *%$" '$&##0 *&# " &$&##!)/ $)%*& "&#"0  !)) '!!&"&#+ • DALLAS, TEXAS 75265 • HOUSTON, TEXAS 77251−1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 1 







  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 logic symbol† 1PRE 1CLK 1D 1CLR 2PRE 2CLK 2D 2CLR 4 2 1 5 S 3 1Q C1 1D 6 R 10 9 11 1Q 2Q 12 8 13 2Q † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. logic diagram (positive logic) PRE CLR Q Q CLK D absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN54ALS74A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C SN74ALS74A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°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. 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 







  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 recommended operating conditions SN54ALS74A SN74ALS74A MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 V High-level output current −0.4 −0.4 mA IOL fclock Low-level output current 4 8 mA 34 MHz High-level input voltage 2 Clock frequency 0 PRE or CLR low tw 2 Pulse duration tsu Setup time before CLK↑ th TA Hold time after CLK↑ 25 15 CLK high 17.5 14.5 CLK low 17.5 14.5 Data 16 15 PRE or CLR inactive 10 10 Data 2 Operating free-air temperature V 0 15 ns ns 0 −55 125 V ns 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER SN54ALS74A MIN TYP† MAX TEST CONDITIONS VIK VOH VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = −18 mA IOH = − 2 mA VOL VCC = 4.5 V IOL = 4 mA IOL = 8 mA VCC = 4.5 V, VI = 7 V VCC = 4.5 V, VI = 2.7 V VCC = 4.5 V, VI = 0.4 V −1.5 VCC −2 PRE or CLR 0.25 CLK or D IIH PRE or CLR CLK or D IIL PRE or CLR −1.5 VCC −2 CLK or D II SN74ALS74A MIN TYP† MAX 0.4 UNIT V V 0.25 0.4 0.35 0.5 0.1 0.1 0.2 0.2 20 20 40 40 −0.2 −0.2 −0.4 −0.4 V mA µA A mA IO‡ VCC = 5.5 V, VO = 2.25 V −20 −112 −30 −112 mA ICC VCC = 5.5 V, See Note 1 2.4 4 2.4 4 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. NOTE 1: ICC is measured with D, CLK, and PRE grounded, then with D, CLK, and CLR grounded. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 3 







  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 switching characteristics (see Figure 1) FROM (INPUT) PARAMETER VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† TO (OUTPUT) SN54ALS74A MIN fmax tPLH tPHL tPLH SN74ALS74A MAX MIN 25 PRE or CLR Q or Q UNIT MAX 34 MHz 3 18 3 13 5 17 5 15 5 16 5 18 5 23 CLK Q or Q tPHL 5 20 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ns ns absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN54AS74A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C SN74AS74A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°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. recommended operating conditions SN54AS74A SN74AS74A MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 0.8 V High-level output current −2 −2 mA IOL fclock* Low-level output current 20 20 mA 105 MHz tw* High-level input voltage 2 Clock frequency Pulse duration tsu* Setup time before CLK↑ th* TA Hold time after CLK↑ 0 2 90 0 PRE or CLR low 4 4 CLK high 4 4 CLK low 5.5 5.5 Data 4.5 4.5 2 2 PRE or CLR inactive Data 0 Operating free-air temperature −55 V 0 * On products compliant to MIL-STD-833, Class B, this parameter is based on characterization data but is not production tested. 4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • ns ns 0 125 V ns 70 °C 







  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER SN54AS74A TYP† MAX TEST CONDITIONS MIN VIK VOH VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = −18 mA IOH = − 2 mA VOL II VCC = 4.5 V, VCC = 5.5 V, IOL = 20 mA VI = 7 V −1.2 VCC −2 PRE or CLR VCC = 5.5 V, VI = 2.7 V 0.25 VCC = 5.5 V, VI = 0.4 V CLK or D IIL PRE or CLR −1.2 VCC −2 CLK or D IIH SN74AS74A TYP† MAX MIN 0.5 UNIT V V 0.25 0.5 V 0.1 0.1 mA 20 20 40 40 −0.5 −0.5 −1.8 −1.8 µA A mA IO‡ VCC = 5.5 V, VO = 2.25 V −30 −112 −30 −112 mA ICC VCC = 5.5 V, See Note 1 10.5 16 10.5 16 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. NOTE 1: ICC is measured with D, CLK, and PRE grounded, then with D, CLK, and CLR grounded. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ SN54AS74A SN74AS74A MIN fmax* tPLH tPHL tPLH MAX 90 PRE or CLR Q or Q CLK Q or Q MIN MAX 105 MHz 2 9 2 7.5 2.5 11.5 2.5 10.5 2.5 10 3 8 tPHL 3.5 10.5 3 9 * On products compliant to MIL-STD-833, Class B, this parameter is based on characterization data but is not production tested. § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • UNIT ns ns 5 







  
    
   
 SDAS143C − APRIL 1982 − REVISED AUGUST 1995 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point From Output Under Test LOAD CIRCUIT FOR 3-STATE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 1.3 V 1.3 V 0.3 V 0.3 V tsu Data Input tw th 3.5 V 1.3 V 3.5 V Low-Level Pulse 1.3 V 0.3 V 1.3 V 0.3 V VOLTAGE WAVEFORMS PULSE DURATIONS VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3.5 V Output Control (low-level enabling) 1.3 V 1.3 V 0.3 V tPZL Waveform 1 S1 Closed (see Note B) tPLZ 3.5 V Input tPZH 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output VOL 0.3 V 1.3 V 1.3 V VOL tPLH tPHL VOH 1.3 V 1.3 V [3.5 V 1.3 V tPHZ Waveform 2 S1 Open (see Note B) 1.3 V VOH Out-of-Phase Output (see Note C) 0.3 V [0 V 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS 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. When measuring propagation delay items of 3-state outputs, switch S1 is open. D. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%. E. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuits and Voltage Waveforms 6 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 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) 5962-9862701QCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9862701QC A SNJ54AS74AJ 84011012A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 84011012A SNJ54ALS 74AFK 8401101CA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8401101CA SNJ54ALS74AJ Samples 8401101DA ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8401101DA SNJ54ALS74AW Samples JM38510/37101B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37101B2A Samples JM38510/37101BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37101BCA Samples M38510/37101B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37101B2A Samples M38510/37101BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37101BCA Samples SN54ALS74AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54ALS74AJ Samples SN54AS74AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54AS74AJ Samples SN74ALS74AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS74A Samples SN74ALS74ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS74A Samples SN74ALS74AN ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS74AN Samples SN74ALS74ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS74A Samples SN74AS74AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 AS74A Samples SN74AS74ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 AS74A Samples SN74AS74AN ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74AS74AN Samples Addendum-Page 1 Samples Samples PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 14-Oct-2022 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) SN74AS74ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74AS74A SNJ54ALS74AFK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 84011012A SNJ54ALS 74AFK SNJ54ALS74AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8401101CA SNJ54ALS74AJ Samples SNJ54ALS74AW ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8401101DA SNJ54ALS74AW Samples SNJ54AS74AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9862701QC A SNJ54AS74AJ (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