SN74AS138NG4

SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 D D D Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems Incorporate Three Enable Inputs to Simplify Cascading and /or Data Reception Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs SN54ALS138A, SN54AS138 . . . J PACKAGE SN74ALS138A, SN74AS138 . . . D OR N PACKAGE (TOP VIEW) A B C G2A G2B G1 Y7 GND description 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 B A NC VCC Y0 SN54ALS138A, SN54AS138 . . . FK PACKAGE (TOP VIEW) C G2A NC G2B G1 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 Y1 Y2 NC Y3 Y4 Y7 GND NC Y6 Y5 The ′ALS138A and ′AS138 are 3-line to 8-line decoders/demultiplexers designed for highperformance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance systems, these devices can be used to minimize the effects of system decoding. When employed with high-speed memories with a fast enable circuit, the delay times of the decoder and the enable time of the memory are usually less than the typical access time of the memory. The effective system delay introduced by the Schottky-clamped system decoder is negligible. 1 The conditions at the binary-select (A, B, and C) inputs and the three enable (G1, G2A, and G2B) NC – No internal connection inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. The SN54ALS138A and SN54AS138 are characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74ALS138A and SN74AS138 are characterized for operation from 0°C to 70°C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright  1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 FUNCTION TABLE INPUTS ENABLE OUTPUTS SELECT G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X H X X X X H H H H H H H H X X H X X X H H H H H H H H L X X X X X H H H H H H H H H L L L L L L H H H H H H H H L L L L H H L H H H H H H H L L L H L H H L H H H H H H L L L H H H H H L H H H H H L L H L L H H H H L H H H H L L H L H H H H H H L H H H L L H H L H H H H H H L H H L L H H H H H H H H H H L logic symbols (alternatives)† A B C G1 1 2 3 6 4 G2A G2B 5 BIN/OCT 0 1 2 1 4 2 3 & 4 EN 5 6 7 15 14 13 12 11 10 9 7 Y0 A Y1 B Y2 C 1 Y5 Y6 G1 3 6 4 G2A G2B 5 Y7 POST OFFICE BOX 655303 0 G 7 2 1 2 & 3 4 5 6 7 † These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. 2 0 2 Y3 Y4 DMUX 0 • DALLAS, TEXAS 75265 15 14 13 12 11 10 9 7 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 logic diagram (positive logic) 15 A 1 14 13 Select Inputs B 11 3 10 9 G2A Enable Inputs G1 Y2 Y3 Data Outputs Y4 Y5 Y6 4 7 G2B Y1 2 12 C Y0 5 Y7 6 Pin numbers shown are for the D, J, and N packages. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 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: SN54ALS138A . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS138A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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 SN54ALS138A SN74ALS138A 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 High-level output current – 0.4 – 0.4 mA IOL TA Low-level output current 4 8 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 – 55 125 V V 0 V electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH SN54ALS138A TYP‡ MAX TEST CONDITIONS MIN VCC = 4.5 V, VCC = 4.5 V, II = – 18 mA IOH = – 0.4 mA VOL VCC = 4 4.5 5V 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 SN74ALS138A 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 V 0.1 0.1 mA 20 20 µA – 0.1 mA – 112 mA – 0.1 – 20 UNIT – 112 – 30 ICC VCC = 5.5 V 5 10 5 10 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. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B A, B, C Any Y tPLH tPHL G or G Any Y VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX¶ SN54ALS138A SN74ALS138A MIN MAX MIN MAX 2 28 5 22 6 22 6 18 2 22 3 17 4 21 4 17 ¶ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT ns ns SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 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: SN54AS138 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74AS138 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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 SN54AS138 SN74AS138 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 20 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 – 55 125 V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS 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 ICCH ICCL SN54AS138 TYP‡ MAX MIN SN74AS138 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 17.5 mA – 112 12 UNIT 17.5 0.35 – 30 12 VCC = 5.5 V 14 20 14 20 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 5 SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B A, B, C Any Y tPLH tPHL G1 Any Y tPLH tPHL G2 Any Y VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† SN54AS138 SN74AS138 MIN MAX MIN 2 11 2 10 2 11 2 9.5 2 11.5 2 10 2 11 2 10 2 9 2 7.5 2 10 2 8.5 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT MAX ns ns ns SN54ALS138A, SN54AS138, SN74ALS138A, SN74AS138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SDAS055E – APRIL 1982 – REVISED JULY 1996 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 From Output Under Test 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 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 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 1.3 V tPHZ tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOL 0.3 V VOH 1.3 V 0.3 V [0 V 3.5 V 1.3 V Input 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output 1.3 V 1.3 V VOL tPLH tPHL VOH Out-of-Phase Output (see Note C) 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 7 PACKAGE OPTION ADDENDUM www.ti.com 13-Jul-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) 5962-86866012A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 596286866012A SNJ54ALS 138AFK 5962-8686601FA ACTIVE CFP W 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8686601FA SNJ54ALS138AW Samples JM38510/37701B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type JM38510/ 37701B2A Samples JM38510/37701BEA ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type JM38510/ 37701BEA Samples M38510/37701B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37701B2A Samples M38510/37701BEA ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 37701BEA Samples SN54ALS138AJ ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type SN54ALS138AJ Samples SN54AS138J ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54AS138J Samples SN74ALS138AD ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS138A Samples SN74ALS138ADE4 ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS138A Samples SN74ALS138ADG4 ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS138A Samples SN74ALS138ADR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS138A Samples SN74ALS138AN ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74ALS138AN Samples SN74ALS138ANSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 ALS138A Samples SN74AS138D ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 AS138 Samples SN74AS138N ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN74AS138N Samples SN74AS138NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74AS138 Samples Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 13-Jul-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) SNJ54ALS138AFK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 596286866012A SNJ54ALS 138AFK SNJ54ALS138AJ ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54ALS138AJ Samples SNJ54ALS138AW ACTIVE CFP W 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8686601FA SNJ54ALS138AW Samples SNJ54AS138FK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54AS 138FK Samples SNJ54AS138J ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SNJ54AS138J 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