74AC11257DBRE4

74AC11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS049C − MARCH 1989 − REVISED MAY 2004 D 3-State Outputs Interface Directly With D D D D DB, DW, N, OR PW PACKAGE (TOP VIEW) System Bus Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise 500-mA Typical Latch-Up Immunity at 125°C Provides Bus Interface From Multiple Sources in High-Performance Systems A/B 1Y 2Y GND GND GND GND 3Y 4Y OE description/ordering information 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 This device 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. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION PDIP − N SOIC − DW −40°C 40°C to 85°C SSOP − DB TSSOP − PW † ORDERABLE PART NUMBER PACKAGE† TA Tube 74AC11257N Tube 74AC11257DW Tape and reel 74AC11257DWR Tape and reel 74AC11257DBR Tube 74AC11257PW Tape and reel 74AC11257PWR TOP-SIDE MARKING 74AC11257N AC11257 AE257 AE257 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS OUTPUT Y DATA OE SELECT A/B A B H X X X Z L L L X L L L H X H L H X L L L H X H H 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 © 2004, 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 74AC11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS049C − MARCH 1989 − REVISED MAY 2004 logic diagram (positive logic) OE A/B 1A 1B 2A 2B 3A 3B 4A 4B 10 1 20 2 1Y 19 18 3 2Y 17 14 8 3Y 13 12 9 4Y 11 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 Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/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 package thermal impedance is calculated in accordance with JESD 51-7. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 74AC11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS049C − MARCH 1989 − REVISED MAY 2004 recommended operating conditions (see Note 3) VCC Supply voltage VCC = 3 V VIH High-level High level input voltage MIN NOM MAX 3 5 5.5 Low-level Low level input voltage VI Input voltage VO Output voltage VCC = 4.5 V 3.15 VCC = 5.5 V 3.85 V 0.9 VCC = 4.5 V 1.35 VCC = 5.5 V 1.65 High-level High level output current IOL Low-level Low level output current Dt/Dv Input transition rise or fall rate TA Operating free-air temperature V 0 VCC V 0 VCC V VCC = 3 V IOH V 2.1 VCC = 3 V VIL UNIT −4 VCC = 4.5 V −24 VCC = 5.5 V −24 VCC = 3 V 12 VCC = 4.5 V 24 VCC = 5.5 V 24 −40 mA mA 10 ns/V 85 °C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = −50 50 mA VOH IOH = −4 mA 24 mA IOH = −24 VOL TA = 25°C MIN TYP MAX MIN 3V 2.9 2.9 4.5 V 4.4 4.4 5.5 V 5.4 5.4 3V 2.58 2.48 4.5 V 3.94 3.8 5.5 V 4.94 MAX 4.8 5.5 V 3V 0.1 0.1 IOL = 50 mA 4.5 V 0.1 0.1 5.5 V 0.1 0.1 IOL = 12 mA IOL = 75 mA† IOZ VO = VCC or GND II VI = VCC or GND ICC VI = VCC or GND, Ci VI = VCC or GND Co VO = VCC or GND 3.85 3V 0.36 0.44 4.5 V 0.36 0.44 5.5 V 0.36 0.44 5.5 V IO = 0 UNIT V IOH = −75 mA† IOL = 24 mA † VCC V 1.65 5.5 V ±0.5 ±5 mA 5.5 V 5.5 V ±0.1 ±1 mA 8 80 mA 5V 3.5 pF 5.5 V 8 pF Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 74AC11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS049C − MARCH 1989 − REVISED MAY 2004 switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (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 MIN TYP MAX 1.5 5.6 8.1 1.5 8.9 1.5 6.2 9 1.5 10.1 1.5 6.1 9.2 1.5 10.2 1.5 6.6 10 1.5 11.2 1.5 5.6 8.2 1.5 9.1 1.5 7.5 10.4 1.5 11.8 1.5 5.6 7.6 1.5 8.3 1.5 6.2 8.8 1.5 9.6 UNIT ns ns ns ns switching characteristics, over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (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 5.8 1.5 6.4 6.5 1.5 7.2 4 6.5 1.5 7.2 4.4 7.1 1.5 7.9 3.8 5.9 1.5 6.5 1.5 5 7.6 1.5 8.6 1.5 4.5 6.4 1.5 7.6 1.5 4.8 6.9 1.5 7.6 MIN TYP MAX 1.5 3.6 1.5 4.1 1.5 1.5 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 37 CL = 50 pF, pF f = 1 MHz 11 pF 74AC11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS SCAS049C − MARCH 1989 − REVISED MAY 2004 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 VCC 50% 50% 0V Input tPHL tPLH VOH In-Phase Output 50% VCC 50% VCC VOL VOH 50% VCC 50% VCC VOL VCC Output Waveform 2 S1 at GND (see Note B) 50% 50% 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 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) 74AC11257DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC11257 Samples 74AC11257N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type -40 to 85 74AC11257N Samples 74AC11257PW ACTIVE TSSOP PW 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AE257 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