SN74BCT2245DBRG4

SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003 D Operating Voltage Range of 4.5 V to 5.5 V D State-of-the-Art BiCMOS Design DB, DW, N, OR NS PACKAGE (TOP VIEW) Significantly Reduces ICCZ DIR A1 A2 A3 A4 A5 A6 A7 A8 GND D B Port Has Equivalent 33-Ω Series D Resistors, So No External Resistors Are Required ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) description/ordering information 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 The SN74BCT2245 octal transceiver and line/ MOS driver is designed for asynchronous communication between data buses. The device allows data transmission 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. The output-enable (OE) input can disable the devices so that both buses are effectively isolated. 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. The B-port outputs, which are designed to source or sink up to 12 mA, include 33-Ω series resistors to reduce overshoot and undershoot. ORDERING INFORMATION PDIP − N 0°C to 70°C † ORDERABLE PART NUMBER PACKAGE† TA TOP-SIDE MARKING Tube SN74BCT2245N Tube SN74BCT2245DW Tape and reel SN74BCT2245DWR SOP − NS Tape and reel SN74BCT2245NSR BCT2245 SSOP − DB Tape and reel SN74BCT2245DBR BA245 SOIC − DW SN74BCT2245N BCT2245 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS OE OPERATION DIR L L B data to A bus L H A data to B bus H X Isolation 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. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 1 SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003 logic diagram (positive logic) DIR 1 19 A1 OE 2 18 B1 To Seven Other Channels schematic of A-port outputs schematic of B-port outputs VCC VCC 33 Ω Output Output 33 Ω GND GND All resistor values shown are nominal. 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003 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 Voltage range applied to any output in the disabled or power-off state, VO . . . . . . . . . . . . . . . . −0.5 V to 5.5 V Voltage range applied to any output in the high state, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC Input clamp current, IIK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 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 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. recommended operating conditions (see Note 3) VCC Supply voltage VIH High-level input voltage VIL Low-level input voltage IIK Input clamp current IOH High level output current High-level IOL Low level output current Low-level TA Operating free-air temperature MIN NOM MAX 4.5 5 5.5 2 V V 0.8 V −18 mA A port −3 B port −12 A port 24 B port 12 0 UNIT 70 mA mA °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. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 3 SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK TEST CONDITIONS VCC = 4.5 V, A port VOH VOL 5V VCC = 4 4.5 A port VCC = 4.5 V, B port II IIH‡ IOH = −1 mA 2.5 3.4 IOH = −3 mA 2.4 3.3 IOH = −1 mA 2.4 3.3 IOH = −12 mA 2 IOL = 24 mA Control input B to A B to A Ci Cio B to A Control input A to B B to A 0.5 0.8 VCC = 5.5 V, VI = 5.5 V 0.1 5V VCC = 5 5.5 V, 7V VI = 2 2.7 VCC = 5.5 V, VI = 0.5 V VCC = 5 5.5 5V V, VO = 0 5V VCC = 5 5.5 V, Outputs open VCC = 5 5.5 5V V, Outputs open VCC = 5 5.5 5V V, Outputs open VCC = 5 V, VI = 2.5 V or 0.5 V 70 20 −0.65 −60 −150 −100 −225 A to B ICCZ V IOL = 12 mA A to B ICCH V 0.5 VCC = 4 4.5 5V A to B ICCL UNIT −1.2 IOL = 1 mA A port B port MAX 3.2 0.35 A or B port IIL‡ IOS§ TYP† II = −18 mA VCC = 4 4.5 5V B port MIN VCC = 5 V V, 63 100 40 64 37 59 29 46 9 15 8 14 7 mA A μA mA mA mA mA mA pF 9 VO = 2 2.5 5 V or 0.5 05V V pF 12 † All typical values are at VCC = 5 V, TA = 25°C. For I/O ports, the parameters IIH and IIL include the off-state output current. § Not more than one output should be tested at a time, and the duration of the test should not exceed one second. ‡ switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL 4 FROM (INPUT) TO (OUTPUT) A B VCC = 5 V, TA = 25°C MIN MAX 4.9 1 5.8 6.1 1.7 7 5.1 6.9 2.5 7.8 4.7 7.1 2.2 7.7 3.2 6.2 8.6 3.2 9.9 A 3.8 7.2 9.5 3.8 11.1 B 5.6 8.3 10.9 5.6 12.2 A 4.2 7.6 10.1 4.2 11.4 B 2.6 5.2 7.1 2.6 8.2 A 3.1 5.7 8 3.1 9.4 B 3.5 6 7.9 3.5 9.2 A 2.3 4.7 6.5 2.3 7.6 MIN TYP MAX B 1 3.3 A 1.7 4.2 A B 2.5 B A 2.2 B tPZH OE tPZL OE tPHZ OE tPLZ OE • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • UNIT ns ns ns ns ns ns SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C − FEBRUARY 1992 − REVISED MARCH 2003 PARAMETER MEASUREMENT INFORMATION 7 V (tPZL, tPLZ, O.C.) S1 Open (all others) From Output Under Test Test Point CL (see Note A) R1 From Output Under Test R1 Test Point CL (see Note A) R2 LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS RL = R1 = R2 LOAD CIRCUIT FOR 3-STATE AND OPEN-COLLECTOR OUTPUTS High-Level Pulse (see Note B) 3V Timing Input (see Note B) 3V 1.5 V 1.5 V 0V 1.5 V tw 0V Data Input (see Note B) 3V th tsu Low-Level Pulse 3V 1.5 V 1.5 V 0V 1.5 V 1.5 V VOLTAGE WAVEFORMS PULSE DURATION 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V Output Control (low-level enable) 3V Input (see Note B) 1.5 V 1.5 V 0V In-Phase Output (see Note D) VOH 1.5 V VOL 0V 1.5 V 3.5 V VOL tPHZ VOH 1.5 V tPLZ 1.5 V Waveform 1 (see Notes C and D) tPLH tPHL Out-of-Phase Output (see Note D) 1.5 V 1.5 V tPZL tPHL tPLH 1.5 V 0.3 V tPZH Waveform 2 (see Notes C and D) VOL VOH 1.5 V 0.3 V 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES (see Note D) NOTES: A. CL includes probe and jig capacitance. B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, tr = tf ≤ 2.5 ns, duty cycle = 50%. C. 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. D. The outputs are measured one at a time with one transition per measurement. E. When measuring propagation delay times of 3-state outputs, switch S1 is open. F. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuit and Voltage Waveforms • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 5 PACKAGE OPTION ADDENDUM www.ti.com 6-Aug-2021 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) SN74BCT2245DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 BCT2245 SN74BCT2245NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 BCT2245 (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