SN74HC257D




       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D ’HC257 . . . Typical tpd = 9 ns SN54HC257, SN54HC258 . . . J PACKAGE SN74HC257, SN74HC258 . . . D, N, NS, OR PW PACKAGE (TOP VIEW) 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 ’HC258 . . . Typical tpd = 12 ns ±6-mA Output Drive at 5 V Low Input Current of 1 µA Max Provides Bus Interface from Multiple Sources in High-Performance Systems SN54HC257, SN54HC258 . . . FK PACKAGE (TOP VIEW) VCC G 4A 4B 4Y 3A 3B 3Y 1B 1Y NC 2A 2B 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A 4B NC 4Y 3A 2Y GND NC 3Y 3B A/B 1A 1B 1Y 2A 2B 2Y GND D D D D 1A A/B NC VCC G D Wide Operating Voltage Range of 2 V to 6 V D High-Current Inverting Outputs Drive Up To NC − No internal connection description/ordering information ORDERING INFORMATION PACKAGE† TA PDIP − N Tube of 25 SOIC − D −40°C −40 C to 85 85°C C SOP − NS TSSOP − PW CDIP − J SN74HC257N SN74HC258N SN74HC258N SN74HC257D Reel of 2500 SN74HC257DR Reel of 250 SN74HC257DT Tube of 40 SN74HC258D Reel of 2500 SN74HC258DR Reel of 2000 HC258 HC257 SN74HC258NSR HC258 SN74HC257PW Reel of 2000 SN74HC257PWR Reel of 250 SN74HC257PWT Tube of 90 SN74HC258PW Reel of 2000 SN74HC258PWR Reel of 250 SN74HC258PWT Tube of 55 HC257 SN74HC257NSR Tube of 90 −55°C to 125°C TOP-SIDE MARKING SN74HC257N Tube of 40 Tube of 25 LCCC − FK ORDERABLE PART NUMBER HC257 HC258 SNJ54HC257J SNJ54HC257J SNJ54HC258J SNJ54HC258J SNJ54HC257FK SNJ54HC257FK SNJ54HC258FK SNJ54HC258FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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  2003, Texas Instruments Incorporated    !"#$%! & '("")% $& ! *(+,'$%! -$%). "!-('%& '!!"# %! &*)''$%!& *)" %/) %)"#& ! )0$& &%"(#)%& &%$-$"- 1$""$%2. "!-('%! *"!')&&3 -!)& !% )')&&$",2 ',(-) %)&%3 ! $,, *$"$#)%)"&.  *"!-('%& '!#*,$% %! 4  $,, *$"$#)%)"& $") %)&%)(,)&& !%/)"1&) !%)-.  $,, !%/)" *"!-('%& *"!-('%! *"!')&&3 -!)& !% )')&&$",2 ',(-) %)&%3 ! $,, *$"$#)%)"&. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 description/ordering information (continued) These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level. To ensure the high-impedance state during power up or power down, G 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. FUNCTION TABLE INPUTS OUTPUT Y G A/B A B ’HC257 ’HC258 H X X X Z Z L L L X L H L L H X H L L H X L L H L H X H H L ’HC257 logic diagram (positive logic) G A/B 1A 1B 2A 2B 3A 3B 4A 4B 15 1 2 4 3 5 7 2Y 6 11 9 3Y 10 14 12 13 Pin numbers shown are for the D, J, N, NS, and PW packages. 2 1Y POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4Y 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 ’HC258 logic diagram (positive logic) G A/B 1A 1B 2A 2B 3A 3B 4A 4B 15 1 2 4 1Y 3 5 7 2Y 6 11 9 3Y 10 14 12 4Y 13 Pin numbers shown are for the D, J, N, NS, and PW packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±70 mA Package thermal impedance, θJA (see Note 1): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°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. NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 recommended operating conditions (see Note 2) SN54HC257, SN54HC258 VCC VIH Supply voltage VCC = 2 V VCC = 4.5 V High-level input voltage VCC = 6 V VCC = 2 V VIL VI VO ∆t/∆v MIN NOM MAX 2 5 6 Input voltage Output voltage MAX 2 5 6 3.15 3.15 4.2 4.2 0 V V 0.3 0.5 0.9 1.35 1.2 1.8 VCC VCC VCC = 2 V VCC = 4.5 V Input transition rise/fall time NOM 1.5 0 UNIT MIN 1.5 VCC = 4.5 V VCC = 6 V Low-level input voltage SN74HC257, SN74HC258 0 VCC VCC 0 1000 1000 500 500 V V V ns VCC = 6 V 400 400 TA Operating free-air temperature −55 125 −40 85 °C NOTE 2: 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 = −20 µA VOH VI = VIH or VIL IOH = −6 mA IOH = −7.8 mA VOL 4 VI = VCC or 0 VO = VCC or 0 ICC Ci VI = VCC or 0, MAX MIN TYP 2V 1.9 1.998 1.9 1.9 4.5 V 4.4 4.499 4.4 4.4 6V 5.9 5.999 5.9 5.9 4.5 V 3.98 4.3 3.7 3.84 6V 5.48 5.8 MIN MAX SN74HC257, SN74HC258 5.2 MIN UNIT MAX V 5.34 2V 0.002 0.1 0.1 0.1 IOL = 20 µA 4.5 V 0.001 0.1 0.1 0.1 6V 0.001 0.1 0.1 0.1 IOL = 6 mA IOL = 7.8 mA 4.5 V 0.17 0.26 0.4 0.33 6V 0.15 0.26 0.4 0.33 6V ±0.1 ±100 ±1000 ±1000 nA 6V ±0.01 ±0.5 ±10 ±5 µA 8 160 80 µA 3 10 10 10 pF VI = VIH or VIL II IOZ SN54HC257, SN54HC258 TA = 25°C VCC IO = 0 6V 2 V to 6 V POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER SN74HC257 VCC 2V 50 100 150 125 A or B Any Y 4.5 V 10 20 30 25 6V 9 17 25 21 2V 50 100 150 125 4.5 V 10 20 30 25 6V 9 17 25 21 A/B tdis SN54HC257 TO (OUTPUT) tpd ten TA = 25°C TYP MAX FROM (INPUT) G G tt Any Y Any Y Any Y Any Y MIN MIN MAX MIN MAX 2V 75 150 225 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 75 150 225 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 28 60 90 75 4.5 V 8 12 18 15 6V 6 10 15 13 UNIT ns ns ns ns switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) A or B TO (OUTPUT) Any Y tpd A/B ten tt G Any Y Any Y Any Y VCC TA = 25°C MIN TYP MAX SN54HC257 MIN MAX SN74HC257 MIN MAX 2V 75 150 245 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 75 150 245 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 100 200 300 250 4.5 V 24 40 60 50 6V 18 34 51 43 2V 45 210 315 265 4.5 V 17 42 63 53 6V 13 36 53 45 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT ns ns ns 5 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER SN74HC258 VCC 2V 60 100 150 125 A or B Any Y 4.5 V 13 20 30 25 6V 12 17 25 21 2V 60 115 175 145 4.5 V 13 23 35 29 6V 12 20 30 25 A/B G tdis SN54HC258 TO (OUTPUT) tpd ten TA = 25°C TYP MAX FROM (INPUT) G tt Any Y Any Y Any Y Any Y MIN MIN MAX MIN MAX 2V 70 150 225 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 75 150 225 190 4.5 V 15 30 45 38 6V 13 26 38 32 2V 28 60 90 75 4.5 V 8 12 18 15 6V 6 10 15 13 UNIT ns ns ns ns switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) A or B TO (OUTPUT) Any Y tpd A/B ten tt G Any Y Any Y Any Y VCC TA = 25°C MIN TYP MAX SN54HC258 MIN MAX SN74HC258 MIN MAX 2V 95 150 245 190 4.5 V 23 30 45 38 6V 21 26 38 32 2V 95 165 240 210 4.5 V 23 33 48 42 6V 21 28 41 36 2V 100 200 300 250 4.5 V 24 40 60 50 6V 18 34 51 43 2V 45 210 315 265 4.5 V 17 42 63 53 6V 13 36 53 45 UNIT ns ns ns operating characteristics, TA = 25°C PARAMETER Cpd 6 TEST CONDITIONS Power dissipation capacitance per multiplexer POST OFFICE BOX 655303 No load • DALLAS, TEXAS 75265 TYP 40 UNIT pF 



       


 
  
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION VCC PARAMETER Test Point From Output Under Test S1 tPZH ten RL CL (see Note A) 1 kΩ tPZL tPHZ tdis S2 RL 1 kΩ CL S1 S2 50 pF or 150 pF Open Closed Closed Open Open Closed Closed Open Open Open 50 pF tPLZ tpd or tt −− LOAD CIRCUIT 50 pF or 150 pF VCC Input 50% 50% 0V tPLH In-Phase Output 50% 10% tPHL 90% VOH 50% 10% V OL tf 90% tr tPHL Out-of-Phase Output 90% tPLH 50% 10% 50% 10% 90% VOH VOL tf tr VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT TRANSITION TIMES Output Control (Low-Level Enabling) VCC 50% 50% 0V tPZL Output Waveform 1 (See Note B) tPLZ ≈VCC ≈VCC 50% 10% VOL tPZH Input 50% 10% 90% VCC 90% 50% 10% 0 V tr Output Waveform 2 (See Note B) 90% VOH ≈0 V tPHZ tf VOLTAGE WAVEFORM INPUT RISE AND FALL TIMES 50% VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS NOTES: A. CL includes probe and test-fixture 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. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. D. The outputs are measured one at a time with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 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) 85124012A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 85124012A SNJ54HC 257FK 8512401EA ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8512401EA SNJ54HC257J Samples SN54HC257J ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54HC257J Samples SN74HC257D ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC257DR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC257DT ACTIVE SOIC D 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC257N ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 SN74HC257N Samples SN74HC257NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC257PW ACTIVE TSSOP PW 16 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC257PWR ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 HC257 Samples SN74HC258D ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC258 Samples SN74HC258DR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC258 Samples SN74HC258N ACTIVE PDIP N 16 25 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 SN74HC258N Samples SN74HC258NSR ACTIVE SO NS 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC258 Samples SN74HC258PW ACTIVE TSSOP PW 16 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC258 Samples SN74HC258PWR ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 HC258 Samples SNJ54HC257FK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 85124012A SNJ54HC 257FK SNJ54HC257J ACTIVE CDIP J 16 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 8512401EA SNJ54HC257J Addendum-Page 1 Samples Samples Samples PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 (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