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74ACT11257PW

74ACT11257PW

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    TSSOP20

  • 描述:

    IC MULTIPLEXER 4 X 2:1 20TSSOP

  • 数据手册
  • 价格&库存
74ACT11257PW 数据手册
74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − REVISED APRIL 1996 D Inputs Are TTL-Voltage Compatible D 3-State Outputs Interface Directly With DB, DW, OR N PACKAGE (TOP VIEW) System Bus A /B 1Y 2Y GND GND GND GND 3Y 4Y OE D Flow-Through Architecture Optimizes D D D D D PCB Layout Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise EPICt (Enhanced-Performance Implanted CMOS) 1-mm Process 500-mA Typical Latch-Up Immunity at 125°C Provides Bus Interface From Multiple Sources in High-Performance Systems Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (N) 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 1A 1B 2A 2B VCC VCC 3A 3B 4A 4B description The 74ACT11257 is designed to multiplex signals from 4-bit data sources to four output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at a high logic level. The 74ACT11257 is characterized for operation from −40°C to 85°C. FUNCTION TABLE INPUTS OUTPUT Y DATA OE SELECT A/B A B H X X X L L L X L L L H X H L H X L L L H X H H Z 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 74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − REVISED APRIL 1996 logic symbol† OE A/B 1A 1B 2A 2B 3A 3B 4A 4B † 10 1 20 19 18 EN G1 1 MUX 2 1Y 1 3 17 14 8 13 12 9 11 2Y 3Y 4Y This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) OE A/B 1A 1B 2A 2B 3A 3B 4A 4B 2 10 1 20 2 1Y 19 18 3 2Y 17 14 8 3Y 13 12 9 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4Y 74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Maximum power dissipation at TA = 55°C (in still air) (see Note 2): DB package . . . . . . . . . . . . . . . . . . . 0.6 W DW package . . . . . . . . . . . . . . . . . . 1.6 W N package . . . . . . . . . . . . . . . . . . . . 1.3 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 VCC Supply voltage VIH High-level input voltage VIL Low-level input voltage VI Input voltage VO Output voltage IOH High-level output current IOL Low-level output current Dt/Dv Input transition rise or fall rate TA Operating free-air temperature MIN MAX 4.5 5.5 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT V V 0.8 V 0 VCC V 0 VCC V −24 mA 24 mA 0 10 ns/V −40 85 °C 3 74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − REVISED APRIL 1996 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETERS TEST CONDITIONS VCC IOH = −50 50 mA A VOH 24 mA IOH = −24 IOH = −75 mA{ TYP MAX IOL = 24 mA MIN 4.5 V 4.4 4.4 5.5 V 5.4 5.4 4.5 V 3.94 3.8 5.5 V 4.94 4.8 5.5 V IOL = 50 mA A VOL TA = 25°C MIN MAX UNIT V 3.85 4.5 V 0.1 5.5 V 0.1 0.1 0.1 4.5 V 0.36 0.44 5.5 V 0.36 0.44 V IOL = 75 mA{ 5.5 V IOZ VO = VCC or GND 5.5 V ±0.5 ±5 mA II VI = VCC or GND 5.5 V ±0.1 ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 8 80 mA DICC‡ One input at 3.4 V, Other inputs at VCC or GND 5.5 V 0.9 1 mA Ci VI = VCC or GND 5V 3.5 pF Co VO = VCC or GND 5V 8 pF 1.65 † 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 to V . CC switching characteristics over recomended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A or B Y A /B Any Y OE Any Y OE Any Y TA = 25°C MIN MAX 6.4 1.5 6.9 8 1.5 8.7 4.7 7.6 1.5 8.2 1.5 5.7 8.5 1.5 9.4 1.5 4.2 6.9 1.5 7.3 1.5 5.5 8.7 1.5 9.6 1.5 5.7 7.6 1.5 8.4 1.5 6 7.9 1.5 8.5 MIN TYP MAX 1.5 4.4 1.5 5 1.5 UNIT ns ns ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS Outputs enabled Cpd 4 Power dissipation capacitance Outputs disabled POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TYP UNIT 41 pF CL = 50 pF, f = 1 MHz 13 pF 74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS053B − JANUARY 1989 − REVISED APRIL 1996 PARAMETER MEASUREMENT INFORMATION 2 × VCC S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND 500 Ω LOAD CIRCUIT 3V Input 1.5 V 1.5 V 0V tPHL tPLH VOH In-Phase Output 50% VCC 50% VCC VOL VOH 50% VCC 50% VCC VOL 3V Output Waveform 2 S1 at GND (see Note B) 1.5 V 1.5 V 0V tPZL tPLZ Output Waveform 1 S1 at 2 × VCC (see Note B) tPLH tPHL Out-of-Phase Output Output Control (low-level enabling) 50% VCC 20% VCC VOL tPHZ tPZH VOLTAGE WAVEFORMS [ VCC 50% VCC 80% VCC VOH [0V VOLTAGE WAVEFORMS 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. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns. D. 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 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) (4/5) (6) 74ACT11257DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ACT11257 74ACT11257DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ACT11257 (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
74ACT11257PW 价格&库存

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