SN74CBT3245APW

SN74CBT3245A OCTAL FET BUS SWITCH SCDS002Q − NOVEMBER 1992 − REVISED DECEMBER 2004 D Standard ’245-Type Pinout D 5-Ω Switch Connection Between Two Ports D TTL-Compatible Input Levels 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 A1 A2 A3 A4 A5 A6 A7 A8 VCC 20 2 1 20 19 OE 18 B1 2 3 17 B2 16 B3 4 5 15 B4 14 B5 6 7 13 B6 12 B7 8 9 NC − No internal connection 10 11 B8 1 GND NC A1 A2 A3 A4 A5 A6 A7 A8 GND NC RGY PACKAGE (TOP VIEW) DB, DBQ, DGV, DW, OR PW PACKAGE (TOP VIEW) NC − No internal connection GQN OR ZQN PACKAGE (TOP VIEW) 1 2 3 4 terminal assignments A 1 2 3 4 B A A1 NC VCC OE C B A3 B2 A2 B1 C A5 A4 B4 B3 D A7 B6 A6 B5 E GND A8 B8 B7 D E NC − No internal connection description/ordering information The SN74CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP, TSSOP, and TVSOP packages provide a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When the output-enable (OE) input is low, the switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports. 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. 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 SN74CBT3245A OCTAL FET BUS SWITCH SCDS002Q − NOVEMBER 1992 − REVISED DECEMBER 2004 description/ordering information (continued) ORDERING INFORMATION QFN − RGY SN74CBT3245ARGYR Tube SN74CBT3245ADW Tape and reel SN74CBT3245ADWR SSOP − DB Tape and reel SN74CBT3245ADBR CU245A SSOP (QSOP) − DBQ Tape and reel SN74CBT3245ADBQR CBT3245A Tube SN74CBT3245APW Tape and reel SN74CBT3245APWR Tape and reel SN74CBT3245ADGVR TSSOP − PW TVSOP − DGV VFBGA − GQN Tape and reel VFBGA − ZQN (Pb-free) † SN74CBT3245AGQNR SN74CBT3245AZQNR CU245A CBT3245A CU245A CU245A CU245A Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUT OE FUNCTION L A port = B port H Disconnect logic diagram (positive logic) 2 18 A1 B1 9 11 A8 B8 19 OE Pin numbers shown are for the DB, DBQ, DGV, DW, PW, and RGY packages. 2 TOP-SIDE MARKING Tape and reel SOIC − DW −40°C 40°C to 85°C ORDERABLE PART NUMBER PACKAGE† TA POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74CBT3245A OCTAL FET BUS SWITCH SCDS002Q − NOVEMBER 1992 − REVISED DECEMBER 2004 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 7 V Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Input clamp current, IIK (VI/O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W (see Note 2): DBQ package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68°C/W (see Note 2): DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W (see Note 2): GQN/ZQN package . . . . . . . . . . . . . . . . . . . . . . . . . . . 78°C/W (see Note 2): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W (see Note 3): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37°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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. 3. The package thermal impedance is calculated in accordance with JESD 51-5. recommended operating conditions (see Note 4) MIN MAX VCC Supply voltage 4 5.5 VIH High-level control input voltage 2 VIL Low-level control input voltage TA Operating free-air temperature −40 UNIT V V 0.8 V 85 °C NOTE 4: All unused control 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 VIK VCC = 4.5 V, II = −18 mA II VCC = 5.5 V, VI = 5.5 V or GND VCC = 5.5 V, IO = 0, VI = VCC or GND Control inputs VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND Control inputs VI = 3 V or 0 ICC ΔICC § Ci Cio(OFF) ron¶ VO = 3 V or 0, VCC = 4.5 V MIN TYP‡ MAX −1.2 V ±5 μA 50 μA 3.5 mA 4 OE = VCC VI = 0 VI = 2.4 V, UNIT pF 4 pF II = 64 mA 5 7 II = 30 mA 5 7 II = 15 mA 10 15 Ω ‡ All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. § This is the increase in supply current for each input that is at the specified TTL voltage level, rather than V CC or GND. ¶ Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lowest voltage of the two (A or B) terminals. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN74CBT3245A OCTAL FET BUS SWITCH SCDS002Q − NOVEMBER 1992 − REVISED DECEMBER 2004 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) † VCC = 4 V VCC = 5 V ± 0.5 V MIN MIN FROM (INPUT) TO (OUTPUT) tpd† A or B B or A 0.35 0.25 ns ten OE A or B 6.4 1.9 5.9 ns tdis OE A or B 5.7 2.1 6 ns PARAMETER MAX UNIT MAX The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). PARAMETER MEASUREMENT INFORMATION 7V S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 7V Open 3V Output Control LOAD CIRCUIT 1.5 V 1.5 V 0V tPZL 3V Input 1.5 V 1.5 V 0V tPLH 1.5 V tPLZ 3.5 V 1.5 V 1.5 V VOL tPHZ VOH Output Waveform 2 S1 at Open (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOL + 0.3 V VOL tPZH tPHL VOH Output Output Waveform 1 S1 at 7 V (see Note B) 1.5 V VOH − 0.3 V 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES 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 ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time, with one 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. H. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuit and Voltage Waveforms 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 17-Nov-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) SN74CBT3245ADBQR ACTIVE SSOP DBQ 20 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 CBT3245A Samples SN74CBT3245ADBR ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CU245A Samples SN74CBT3245ADGVR ACTIVE TVSOP DGV 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CU245A Samples SN74CBT3245ADW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CBT3245A Samples SN74CBT3245ADWG4 ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CBT3245A Samples SN74CBT3245ADWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CBT3245A Samples SN74CBT3245APW ACTIVE TSSOP PW 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CU245A Samples SN74CBT3245APWE4 ACTIVE TSSOP PW 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CU245A Samples SN74CBT3245APWR ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CU245A Samples SN74CBT3245ARGYR ACTIVE VQFN RGY 20 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 CU245A Samples SN74CBT3245AZQNR OBSOLETE BGA MICROSTAR JUNIOR ZQN 20 TBD Call TI Call TI CU245A (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