SN74ALS20ADBR








     
 
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994 SN54ALS20A, SN54AS20 . . . J PACKAGE SN74ALS20A, SN74AS20 . . . 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 1A 1B NC 1C 1D 1Y GND description These devices contain two independent 4-input positive-NAND gates. They perform the Boolean functions Y = A • B • C • D or Y = A + B + C + D in positive logic. The SN54ALS20A and SN54AS20 are characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74ALS20A and SN74AS20 are characterized for operation from 0°C to 70°C. B C D H H H H L L X X X H X L X X H X X L X H X X X L H 1B 1C 1D 2A 2B 2C 2D 1 3 12 4 11 5 10 6 9 7 8 1B 1A NC VCC NC NC 1C NC 1D VCC 2D 2C NC 2B 2A 2Y 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2C NC NC NC 2B NC − No internal connection logic symbol† 1A 13 1Y GND NC 2Y 2A A OUTPUT Y 14 2 SN54ALS20A, SN54AS20 . . . FK PACKAGE (TOP VIEW) FUNCTION TABLE (each gate) INPUTS 1 2D • logic diagram (positive logic) & 1A 2 6 4 1B 1Y 1C 5 1D 1 2 6 4 1Y 5 9 2A 10 8 12 2Y 2B 2C 13 2D 9 10 12 8 2Y 13 † 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. Copyright  1994, Texas Instruments Incorporated     ! "#$ !  %#&'" ($) (#"! "  !%$""! %$ *$ $!  $+! !#$! !(( ,-) (#" %"$!!. ($!  $"$!!'- "'#($ $!.  '' %$$!) • DALLAS, TEXAS 75265 • HOUSTON, TEXAS 77251−1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 1 







     
 
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994 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: SN54ALS20A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C SN74ALS20A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN54ALS20A VCC VIH Supply voltage High-level input voltage SN74ALS20A MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 2 2 VIL Low-level input voltage 0.8‡ 0.7§ IOH IOL High-level output current −0.4 Low-level output current −55 125 V V 0.8 −0.4 mA 8 mA 70 °C V 4 TA Operating free-air temperature ‡ Applies over temperature range − 55°C to 70°C § Applies over temperature range 70°C to 125°C UNIT 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH SN54ALS20A TYP¶ MAX TEST CONDITIONS MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = −18 mA IOH = − 0.4 mA VOL VCC = 4.5 V IOL = 4 mA IOL = 8 mA II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V IIL IO# VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V ICCH ICCL VCC = 5.5 V, VCC = 5.5 V, VI = 0 VI = 4.5 V SN74ALS20A TYP¶ MAX MIN −1.5 VCC − 2 −1.5 VCC − 2 0.25 0.4 V V 0.25 0.4 0.35 0.5 0.1 −20 UNIT 0.1 V mA 20 20 µA −0.1 −0.1 mA −112 mA mA −112 −30 0.22 0.4 0.22 0.4 0.81 1.5 0.81 1.5 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. 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 







     
 
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994 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) SN54ALS20A tPLH tPHL A, B, C, or D Y UNIT SN74ALS20A MIN MAX MIN MAX 1 12.5 3 11 1 11 3 10 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 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: SN54AS20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C SN74AS20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN54AS20 SN74AS20 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 TA Low-level output current 20 mA 70 °C High-level input voltage 2 2 V 20 Operating free-air temperature −55 125 V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER SN54AS20 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 IIH IIL IO¶ VCC = 5.5 V, VCC = 5.5 V, VI = 2.7 V VI = 0.4 V VCC = 5.5 V, VCC = 5.5 V, VO = 2.25 V VI = 0 ICCH ICCL SN74AS20 TYP§ MAX MIN −1.2 VCC − 2 −1.2 VCC − 2 0.35 −30 0.5 V V 0.5 V 0.1 0.1 mA 20 20 µA −0.5 −0.5 mA −112 mA 1.6 mA −112 1 UNIT 1.6 0.35 −30 1 VCC = 5.5 V, VI = 4.5 V 5.4 8.7 5.4 8.7 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. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 3 







     
 
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994 switching characteristics (see Figure 1) PARAMETER tPLH tPHL FROM (INPUT) TO (OUTPUT) A, B, C, or D Y VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† SN74AS20 MIN MAX MIN MAX 1 5.5 1 5 1 5 1 4.5 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • UNIT SN54AS20 ns 







     
 
SDAS192B − APRIL 1982 − REVISED DECEMBER 1994 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 3.5 V High-Level Pulse 1.3 V R2 LOAD CIRCUIT FOR 3-STATE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point From Output Under Test 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 SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATIONS 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 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 5 PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-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) 5962-8858901DA ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8858901DA SNJ54ALS20AW Samples JM38510/37003BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37003BCA Samples M38510/37003BCA ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37003BCA Samples SN74ALS20AD ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS20A Samples SN74ALS20ADR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS20A Samples SN74ALS20AN ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS20AN Samples SN74ALS20ANSR ACTIVE SO NS 14 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS20A Samples SN74AS20D ACTIVE SOIC D 14 50 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 AS20 Samples SN74AS20N ACTIVE PDIP N 14 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74AS20N Samples SNJ54ALS20AFK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54ALS 20AFK Samples SNJ54ALS20AJ ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54ALS20AJ Samples SNJ54ALS20AW ACTIVE CFP W 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8858901DA SNJ54ALS20AW Samples SNJ54AS20J ACTIVE CDIP J 14 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54AS20J 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". Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2022 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