74ACT11139 DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996 D D D D D D D D Inputs Are TTL-Voltage Compatible Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems Incorporates Two Enable Inputs to Simplify Cascading and/or Data Reception Fully Synchronous Operation for Counting Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic Small-Outline (D) and Thin Shrink Small-Outline (PW) Packages, and Standard Plastic 300-mil DIPs (N) D, N, OR PW PACKAGE (TOP VIEW) 1Y1 1Y2 1Y3 GND 2Y0 2Y1 2Y2 2Y3 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 1Y0 1A 1B 1G VCC 2G 2A 2B description The 74ACT11139 is designed for use in high-performance memory-decoding or data-routing applications that require very short propagation delay times. In high-performance memory systems, this decoder is used to minimize the effects of system decoding. The 74ACT11139 is composed of two individual 2-line to 4-line decoders in a single package. The active-low enables (1G or 2G) can be used as data lines in demultiplexing applications. This decoder/demultiplexer features fully buffered inputs, each of which represents only one normalized load to its driving circuit. The 74ACT11139 is characterized for operation from –40°C to 85°C. FUNCTION TABLE INPUTS OUTPUTS G B A Y0 Y1 Y2 Y3 H X X H H H H L L L L H H H L L H H L H H L H L H H L H L H H H H H L 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. EPIC is a trademark of Texas Instruments Incorporated. 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 74ACT11139 DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996 logic symbol† 1A 1B 15 14 DMUX 1 2 0 G 3 13 1G 2A 2B 0 1 2 3 16 1Y0 1 1Y1 2 1Y2 3 1Y3 5 10 2Y0 6 2Y1 9 7 11 2Y2 8 2G 2Y3 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 16 1G 13 1 1Y0 1Y1 2 1A 1B 1Y2 15 3 14 5 2G 11 6 1Y3 2Y0 2Y1 7 2A 2B 2 2Y2 10 8 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2Y3 74ACT11139 DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input voltage range, VI (see Note 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Maximum power dissipation at TA = 55°C (in still air) (see Note 2): D package . . . . . . . . . . . . . . . . . . . . 1.3 W N package . . . . . . . . . . . . . . . . . . . . 1.1 W PW package . . . . . . . . . . . . . . . . . . . 0.5 W 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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150_C and a board trace length of 750 mils, except for the N package, which has a trace length of zero. recommended operating conditions (see Note 3) MIN NOM MAX 4.5 5 5.5 VCC VIH Supply voltage VIL VI Low-level input voltage Input voltage 0 VO IOH Output voltage 0 IOL ∆t/∆v High-level input voltage 2 UNIT V V 0.8 V VCC VCC V High-level output current –24 mA Low-level output current 24 mA 0 10 ns/V –40 85 °C Input transition rise or fall rate TA Operating free-air temperature NOTE 3: Unused or floating inputs must be held high or low. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V 3 74ACT11139 DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC 4.5 V IOH = –50 50 mA VOH 24 mA IOH = –24 IOH = –75 mA† IOL = 24 mA ∆ICC‡ Ci MIN 4.4 4.4 5.5 V 5.4 5.4 4.5 V 3.94 3.8 5.5 V 4.94 0.1 V 0.1 5.5 V 0.1 0.1 4.5 V 0.36 0.44 5.5 V 0.36 0.44 V 1.65 mA ±0.1 ±1 5.5 V 8 80 mA 5.5 V 0.9 1 mA 5.5 V IO = 0 Other inputs at VCC or GND UNIT 4.8 5.5 V VI = VCC or GND, One input at 3.4 V, MAX 3.85 4.5 V IOL = 75 mA† VI = VCC or GND II ICC TA = 25°C TYP MAX 5.5 V IOL = 50 mA VOL MIN VI = VCC or GND 5V 3.5 † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC. pF switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A or B Y tPLH tPHL G Y TA = 25°C MIN TYP MAX MIN MAX 1.7 5.7 7.8 1.7 8.5 2.1 5.5 7.4 2.1 8.5 2.7 5.3 7.2 2.7 7.9 1.8 4.3 6.7 1.8 7.5 UNIT ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd 4 TEST CONDITIONS Power dissipation capacitance CL = 50 pF, POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 f = 1 MHz TYP UNIT 47 pF 74ACT11139 DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER SCAS175A – SEPTEMBER 1991 – REVISED APRIL 1996 PARAMETER MEASUREMENT INFORMATION 3V Input (see Note B) From Output Under Test CL = 50 pF (see Note A) 1.5 V 1.5 V 0V tPHL 500 Ω tPLH 50% VCC Output VOH 50% VCC VOL VOLTAGE WAVEFORMS LOAD CIRCUIT NOTES: A. CL includes probe and jig capacitance. B. Input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns. C. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 IMPORTANT NOTICE Texas Instruments 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 conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. 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