SN74AC245DW

SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 D 2-V to 6-V VCC Operation D Inputs Accept Voltages to 6 V D Max tpd of 7 ns at 5 V SN54AC245 . . . J OR W PACKAGE SN74AC245 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND description/ordering information The ’AC245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. When the output-enable (OE) is low, the device passes noninverted data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction control (DIR) input. A high on OE disables the device so that the buses are effectively isolated. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 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. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 B1 B2 B3 B4 B5 A8 GND B8 B7 B6 A3 A4 A5 A6 A7 OE A2 A1 DIR VCC SN54AC245 . . . FK PACKAGE (TOP VIEW) ORDERING INFORMATION PDIP − N SN74AC245N Tube SN74AC245DW Tape and reel SN74AC245DWR SOP − NS Tape and reel SN74AC245NSR AC245 SSOP − DB Tape and reel SN74AC245DBR AC245 Tube SN74AC245PW Tape and reel SN74AC245PWR CDIP − J Tube SNJ54AC245J SNJ54AC245J CFP − W Tube SNJ54AC245W SNJ54AC245W LCCC − FK Tube SNJ54AC245FK SNJ54AC245FK TSSOP − PW −55°C 125°C 55 C to 125 C † TOP-SIDE MARKING Tube SOIC − DW −40°C 40 C to 85°C 85 C ORDERABLE PART NUMBER PACKAGE† TA SN74AC245N AC245 AC245 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 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. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 FUNCTION TABLE INPUTS OE DIR L L H L H X OPERATION B data to A bus A data to B bus Isolation logic diagram (positive logic) DIR 1 19 A1 OE 2 18 B1 To Seven Other Channels 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W NS 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 SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 recommended operating conditions (see Note 3) SN54AC245 VCC Supply voltage VCC = 3 V VIH High-level High level input voltage MIN MAX 2 6 Low-level Low level input voltage VI Input voltage VO Output voltage IOH IOL High-level High level output current Low-level Low level output current Dt/Dv Input transition rise or fall rate TA Operating free-air temperature MIN MAX 2 6 2.1 2.1 VCC = 4.5 V 3.15 3.15 VCC = 5.5 V 3.85 3.85 VCC = 3 V VIL SN74AC245 UNIT V V 0.9 0.9 VCC = 4.5 V 1.35 1.35 VCC = 5.5 V 1.65 1.65 V 0 VCC 0 VCC V 0 VCC 0 VCC V VCC = 3 V −12 −12 VCC = 4.5 V −24 −24 VCC = 5.5 V −24 −24 VCC = 3 V 12 12 VCC = 4.5 V 24 24 VCC = 5.5 V 24 24 8 8 ns/V 85 °C −55 125 −40 mA mA 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = −50 50 mA IOH = −12 mA VOH IOH = −24 24 mA MIN TYP MIN MAX SN74AC245 MIN 3V 2.9 2.9 2.9 4.5 V 4.4 4.4 4.4 5.5 V 5.4 5.4 5.4 3V 2.56 2.4 2.46 4.5 V 3.86 3.7 3.76 5.5 V 4.86 4.7 4.76 MAX 5.5 V 5.5 V 3V 0.002 0.1 0.1 0.1 IOL = 50 mA 4.5 V 0.001 0.1 0.1 0.1 5.5 V 0.001 0.1 0.1 0.1 IOL = 12 mA 3.85 3V 0.36 0.5 0.44 0.36 0.5 0.44 5.5 V 0.36 0.5 0.44 5.5 V IOL = 75 mA† 5.5 V IOL = 50 3.85 4.5 V mA† UNIT V IOH = −75 mA† IOL = 24 mA V 1.65 1.65 A or B ports‡ II SN54AC245 MAX mA† IOH = −50 VOL TA = 25°C VCC ±0.1 ±1 ±1 ±0.1 ±1 ±1 A mA VI = VCC or GND 55V 5.5 IOZ VO = VCC or GND, VI(OE) = VIL or VIH 5.5 V ±0.5 ±10 ±5 mA ICC VI = VCC or GND, 5.5 V 4 80 40 mA Ci VI = VCC or GND 5V 4.5 pF Cio VO = VCC or GND 5V 15 pF OE or DIR IO = 0 † Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms. ‡ For I/O ports, the parameter I OZ includes the input leakage current. 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 tPZH tPZL tPHZ tPLZ 4 FROM (INPUT) TO (OUTPUT) A or B B or A OE A or B OE A or B POST OFFICE BOX 655303 TA = 25°C SN54AC245 SN74AC245 MIN TYP MAX MIN MAX MIN MAX 1.5 5 8.5 1 11.5 1 9 1.5 5 8.5 1 10 1 9 2.5 7 11.5 1 13.5 2 12.5 2.5 7.5 12 1 14.5 2 13.5 2 6.5 12 1 13.5 1 12.5 2 7 11.5 1 14 1.5 13 • DALLAS, TEXAS 75265 UNIT ns ns ns SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 switching characteristics over recommended operating free-air temperature range, VCC = 5 V " 5 V (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A or B B or A OE A or B OE A or B TA = 25°C SN54AC245 SN74AC245 MIN TYP MAX MIN MAX MIN MAX 1.5 3.5 6.5 1 8.5 1 7 1.5 3.5 6 1 7.5 1 7 1.5 5 8.5 1 10 1 9 1.5 5.5 9 1 10.5 1 9.5 1.5 5.5 9 1 10.5 1 10 1.5 5.5 9 1 10.5 1 10 UNIT ns ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd TEST CONDITIONS Power dissipation capacitance per transceiver CL = 50 pF, TYP f = 1 MHz 45 UNIT pF PARAMETER MEASUREMENT INFORMATION 2 × VCC S1 500 Ω From Output Under Test CL = 50 pF (see Note A) Open TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC Open 500 Ω LOAD CIRCUIT VCC Input 50% 50% 0V tPHL tPLH In-Phase Output 50% VCC tPHL Out-of-Phase Output VOH 50% VCC VOL tPLH 50% VCC VOH 50% VCC VOL Output Control (low-level enabling) VCC 50% VCC 50% VCC 0V tPZL tPLZ Output Waveform 1 S1 at 2 × VCC (see Note B) 50% VCC tPZH ≈VCC VOL + 0.3 V VOL tPHZ Output Waveform 2 S1 at Open (see Note B) 50% VCC VOH − 0.3 V VOH ≈0 V VOLTAGE WAVEFORMS 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 v 2.5 ns, tf v 2.5 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) 5962-87758012A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 596287758012A SNJ54AC 245FK 5962-8775801RA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8775801RA SNJ54AC245J Samples 5962-8775801SA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8775801SA SNJ54AC245W Samples 5962-8775801VSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8775801VS A SNV54AC245W SN74AC245DBR ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245DWRE4 ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245N ACTIVE PDIP N 20 20 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 SN74AC245N Samples SN74AC245NE4 ACTIVE PDIP N 20 20 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 SN74AC245N Samples SN74AC245NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245PW ACTIVE TSSOP PW 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SN74AC245PWR ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AC245 Samples SNJ54AC245FK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 596287758012A SNJ54AC 245FK SNJ54AC245J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8775801RA SNJ54AC245J Samples SNJ54AC245W ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-8775801SA SNJ54AC245W Samples 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