SN74AVC8T245QPWRQ1

Order Now Product Folder Support & Community Tools & Software Technical Documents SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 SN74AVC8T245-Q1 8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs 1 Features 3 Description • • The SN74AVC8T245-Q1 is an 8-bit noninverting bus transceiver that uses two separate configurable power-supply rails. The SN74AVC8T245-Q1 operation is optimimal with VCCA and VCCB set at 1.4 V to 3.6 V. It is operational with VCCA and VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. 1 • • • • • • • Qualified for Automotive Applications AEC Q100 Test Guidance With the Following Results: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level H2 – Device CDM ESD Classification Level C3B Control Inputs VIH and VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature – If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State Ioff Supports Partial Power-Down-Mode Operation Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.4-V to 3.6-V Power-Supply Range I/Os Are 4.6-V Tolerant Maximum Data Rates – 170 Mbps (VCCA < 1.8 V or VCCB < 1.8 V) – 320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V) Latch-Up Performance Exceeds 100 mA per JESD 78, Class II In the SN74AVC8T245 design, VCCA supplies the control pins (DIR and OE). Device Information(1) PART NUMBER PACKAGE SN74AVC8T245-Q1 BODY SIZE (NOM) VQFN (24) 3.50 mm × 3.50 mm TSSOP (24) 5.00 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 2 Applications • • • • The SN74AVC8T245 design enables asynchronous communication between data buses. The device transmits 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. One can use the output-enable (OE) input to disable the outputs so the buses are effectively isolated. Telematics Cluster Head Unit Navigation Systems Logic Diagram (Positive Logic) 2 DIR 22 OE 3 A1 21 B1 To Seven Other Channels 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Description (continued)......................................... Pin Configuration and Functions ......................... Specifications......................................................... 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 8 1 1 1 2 3 3 4 Absolute Maximum Ratings ...................................... 4 ESD Ratings.............................................................. 4 Recommended Operating Conditions....................... 5 Thermal Information .................................................. 6 Electrical Characteristics .......................................... 6 Switching Characteristics: VCCA = 1.2 V ................... 7 Switching Characteristics: VCCA = 1.5 V ± 0.1 V....... 8 Switching Characteristics: VCCA = 1.8 V ± 0.15 V..... 9 Switching Characteristics: VCCA = 2.5 V ± 0.2 V....... 9 Switching Characteristics: VCCA = 3.3 V ± 0.3 V... 10 Operating Characteristics...................................... 11 Typical Characteristics .......................................... 13 Parameter Measurement Information ................ 15 9 Detailed Description ............................................ 16 9.1 9.2 9.3 9.4 Overview ................................................................. Functional Block Diagram ....................................... Feature Description................................................. Device Functional Modes........................................ 16 16 16 16 10 Application and Implementation........................ 17 10.1 Application Information.......................................... 17 10.2 Typical Application ............................................... 17 11 Power Supply Recommendations ..................... 19 12 Layout................................................................... 19 12.1 Layout Guidelines ................................................. 19 12.2 Layout Example .................................................... 20 13 Device and Documentation Support ................. 21 13.1 13.2 13.3 13.4 13.5 13.6 Documentation Support ........................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 21 21 21 21 21 21 14 Mechanical, Packaging, and Orderable Information ........................................................... 21 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision C (March 2016) to Revision D Page • Added Junction temperature, TJ in Absolute Maximum Ratings table ................................................................................... 4 • Deleted 2DIR and 2OE from Overview ................................................................................................................................ 16 • Added Documentation Support and Receiving Notification of Documentation Updates ..................................................... 21 Changes from Revision B (December 2012) to Revision C Page • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1 • Deleted Ordering Information table ........................................................................................................................................ 1 Changes from Revision A (June 2011) to Revision B Page • Added bullets to the Features list ........................................................................................................................................... 1 • Added Pin Functions table to the data sheet ......................................................................................................................... 3 • Deleted θJA row from Absolute Maximum Ratings table......................................................................................................... 4 • Changed ESD ratings ............................................................................................................................................................. 4 • Added Thermal Information table ........................................................................................................................................... 6 • Added Figure 10 and Figure 11 to the Typical Characteristics section ............................................................................... 13 2 Submit Documentation Feedback Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 SN74AVC8T245-Q1 www.ti.com SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 5 Description (continued) This device specification covers partial-power-down applications using Ioff. The Ioff circuitry disables the outputs when the device is powered down. This inhibits current backflow into the device which prevents damage to the device. The VCC isolation feature ensures that if either VCC input is at GND, both ports are in the high-impedance state. To ensure the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor. 6 Pin Configuration and Functions VCCB 1 24 PW Package 24-Pin TSSOP Top View 4 23 V C C B 22 OE 21 B1 5 6 20 B2 19 B3 7 18 B4 17 B5 2 3 8 VCCA DIR A1 A2 A3 A4 A5 A6 A7 A8 GND GND 16 B6 15 B7 9 10 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCCB VCCB OE B1 B2 B3 B4 B5 B6 B7 B8 GND 14 B8 12 13 GND 11 GND DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCCA RHL Package 24-Pin VQFN Top View Pin Functions PIN NAME TYPE DESCRIPTION VQFN TSSOP A1 3 3 I/O Input/output A1. Referenced to VCCA. A2 4 4 I/O Input/output A2. Referenced to VCCA. A3 5 5 I/O Input/output A3. Referenced to VCCA. A4 6 6 I/O Input/output A4. Referenced to VCCA. A5 7 7 I/O Input/output A5. Referenced to VCCA. A6 8 8 I/O Input/output A6. Referenced to VCCA. A7 9 9 I/O Input/output A7. Referenced to VCCA. A8 10 10 I/O Input/output A8. Referenced to VCCA. B1 21 21 I/O Input/output B1. Referenced to VCCB. B2 20 20 I/O Input/output B2. Referenced to VCCB. B3 19 19 I/O Input/output B3. Referenced to VCCB. B4 18 18 I/O Input/output B4. Referenced to VCCB. B5 17 17 I/O Input/output B5. Referenced to VCCB. B6 16 16 I/O Input/output B6. Referenced to VCCB. B7 15 15 I/O Input/output B7. Referenced to VCCB. B8 14 14 I/O Input/output B8. Referenced to VCCB. DIR 2 — I GND 12, 13 11, 12, 13 — Direction-control input for 1 ports Ground Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 Submit Documentation Feedback 3 SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com Pin Functions (continued) PIN NAME TYPE DESCRIPTION VQFN TSSOP OE 22 22 I Thermal pad — — — The exposed thermal pad must be connected as a secondary GND or be left electrically open. 3-state output-mode enable. Pull OE high to place ‘2’ outputs in 3-state mode. Referenced to VCCA. VCCA 1 1 — A-port power supply voltage. 1.2 V ≤ VCCA ≤ 3.6 V VCCB 23, 24 23, 24 — B-port power supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT –0.5 4.6 V I/O ports (A port) –0.5 4.6 V I/O ports (B port) –0.5 4.6 V Control inputs –0.5 4.6 V A port –0.5 4.6 V VO Voltage range applied to any output in the highimpedance or power-off state (2) B port –0.5 4.6 V Voltage range applied to any output in the high or low state (2) (3) A port –0.5 (VCCA + 0.5) V VO B port –0.5 (VCCB + 0.5) V IIK Input clamp current VI < 0 –50 mA IOK Output clamp current –50 mA IO Continuous output current ±50 mA Continuous current through VCCA, VCCB, or GND ±100 mA TJ Junction temperature 150 °C Tstg Storage temperature 150 °C VCCA VCCB Input voltage (2) VI (1) (2) (3) Supply voltage VO < 0 –65 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. The device withstands voltages in excess of input voltage and output negative-voltage ratings while operating within the input and output current ratings. The device withstands voltages in excess of the output positive-voltage rating up to 4.6 V maximum while operating within the output current rating. 7.2 ESD Ratings VALUE V(ESD) (1) 4 Electrostatic discharge Human-body model (HBM), per AEC Q100-002 Classification Level H2 (1) Charged-device model (CDM), per AEC Q100-011 Classification Level C3B ±2000 ±750 UNIT V AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification. Submit Documentation Feedback Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 SN74AVC8T245-Q1 www.ti.com SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 7.3 Recommended Operating Conditions See (1) (2) (3) VCCI VCCO MIN MAX UNIT VCCA Supply voltage 1.2 3.6 V VCCB Supply voltage 1.2 3.6 V High-level input voltage VIH Low-level input voltage VIL Data inputs Data inputs 1.2 V to 1.95 V VCCI × 0.65 1.95 V to 2.7 V 1.6 2.7 V to 3.6 V 2 1.2 V to 1.95 V VCCI × 0.35 1.95 V to 2.7 V 0.7 2.7 V to 3.6 V High-level input voltage VIH Low-level input voltage VIL VI DIR (referenced to VCCA) DIR (referenced to VCCA) Output voltage IOH IOL 1.95 V to 2.7 V 1.6 2.7 V to 3.6 V 2 V 1.2 V to 1.95 V VCCA × 0.35 1.95 V to 2.7 V 0.7 2.7 V to 3.6 V 0.8 0 3.6 0 VCCO 3-state 0 3.6 Low-level output current Δt / Δv Input transition rise or fall rate TA Operating free-air temperature (1) (2) (3) VCCA × 0.65 Active state High-level output current V 0.8 1.2 V to 1.95 V Input voltage VO V 1.2 V –3 1.4 V to 1.6 V –6 1.65 V to 1.95 V –8 2.3 V to 2.7 V –9 3 V to 3.6 V –12 1.2 V 3 1.4 V to 1.6 V 6 1.65 V to 1.95 V 8 2.3 V to 2.7 V 9 3 V to 3.6 V 12 5 –40 125 V V V mA mA ns / V °C VCCI is the VCC associated with the input port. VCCO is the VCC associated with the output port. Hold all unused data inputs of the device at VCCI or GND to assure proper device operation. See the TI application report, Implications of Slow or Floating CMOS Inputs, SCBA004. Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 Submit Documentation Feedback 5 SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com 7.4 Thermal Information SN74AVC8T245-Q1 THERMAL METRIC (1) RHL (VQFN) UNIT 24 PINS RθJA Junction-to-ambient thermal resistance 35 °C/W RθJC(top) RθJB Junction-to-case (top) thermal resistance 39.9 °C/W Junction-to-board thermal resistance 13.8 °C/W ψJT Junction-to-top characterization parameter 0.3 °C/W ψJB Junction-to-board characterization parameter 13.8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 1.4 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 7.5 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) (1) PARAMETER TEST CONDITIONS VCCB TA MIN 1.2 V to 3.6 V 1.2 V to 3.6 V TA = –40°C to +125°C VCCO – 0.2 1.2 V 1.2 V TA = 25°C 1.4 V 1.4 V TA = –40°C to +125°C 1 1.65 V 1.65 V TA = –40°C to +125°C 1.2 IOH = –9 mA 2.3 V 2.3 V TA = –40°C to +125°C 1.75 IOH = –12 mA 3V 3V TA = –40°C to +125°C 2.3 IOL = 100 μA 1.2 V to 3.6 V 1.2 V to 3.6 V TA = –40°C to +125°C 1.2 V 1.2 V TA = 25°C 1.4 V 1.4 V TA = –40°C to +125°C 0.35 1.65 V 1.65 V TA = –40°C to +125°C 0.45 IOL = 9 mA 2.3 V 2.3 V TA = –40°C to +125°C 0.55 IOL = 12 mA 3V 3V TA = –40°C to +125°C 0.7 IOH = –100 μA VCCA IOH = –3 mA IOH = –6 mA VOH IOH = –8 mA VI = VIH IOL = 3 mA IOL = 6 mA VOL (2) IOL = 8 mA VI = VIL TA = 25°C II Control inputs VI = VCCA or GND 1.2 V to 3.6 V 1.2 V to 3.6 V Ioff IOZ (1) (2) (3) 6 A or B port (3) A or B port 0 V to 3.6 V VI or VO = 0 to 3.6 V 0 V to 3.6 V 0V TA = –40°C to +125°C 3.6 V 3.6 V TA = –40°C to +125°C TA = 25°C VO = VCCO or GND, VI = VCCI or GND, OE = VIH UNIT V 0.2 0.15 ±0.02 5 V ±0.25 µA ±1 ±0.1 TA = –40°C to +125°C TA = 25°C MAX 0.95 TA = –40°C to +125°C TA = 25°C 0V TYP ±1 ±5 ±0.1 ±1 µA ±5 ±0.5 ±2.5 ±5 µA VCCO is the VCC associated with the output port. VCCI is the VCC associated with the input port. For I/O ports, the parameter IOZ includes the input leakage current. Submit Documentation Feedback Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 SN74AVC8T245-Q1 www.ti.com SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 Electrical Characteristics (continued) over recommended operating free-air temperature range (unless otherwise noted)(1) (2) PARAMETER TEST CONDITIONS VCCA VCCB TA 1.2 V to 3.6 V 1.2 V to 3.6 V TA = –40°C to +125°C 15 0V 3.6 V TA = –40°C to +125°C –2 3.6 V 0V TA = –40°C to +125°C 15 1.2 V to 3.6 V 1.2 V to 3.6 V TA = –40°C to +125°C 15 0V 3.6 V TA = –40°C to +125°C 15 3.6 V 0V TA = –40°C to +125°C –2 1.2 V to 3.6 V 1.2 V to 3.6 V TA = –40°C to +125°C 25 VI = VCCI or GND (4), IO = 0 ICCA VI = VCCI or GND (4), IO = 0 ICCB MIN TYP MAX UNIT µA µA ICCA + ICCB VI = VCCI or GND, IO = 0 Ci Control inputs VI = 3.3 V or GND 3.3 V 3.3 V TA = 25°C 3.5 pF Cio A or B port VO = 3.3 V or GND 3.3 V 3.3 V TA = 25°C 6 pF (4) µA Hold all unused data inputs of the device at VCCI or GND to assure proper device operation. See the TI application report, Implications of Slow or Floating CMOS Inputs, SCBA004. 7.6 Switching Characteristics: VCCA = 1.2 V over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 12) PARAMETER tPLH, tPHL tPLH, tPHL FROM (INPUT) TO (OUTPUT) A B B A VCCB TYP VCCB = 1.2 V 3.1 VCCB = 1.5 V 2.6 VCCB = 1.8 V 2.5 VCCB = 2.5 V 3 VCCB = 3.3 V 3.5 VCCB = 1.2 V 3.1 VCCB = 1.5 V 2.7 VCCB = 1.8 V 2.5 VCCB = 2.5 V 2.4 VCCB = 3.3 V 2.3 UNIT ns ns VCCB = 1.2 V VCCB = 1.5 V tPZH, tPZL OE A VCCB = 1.8 V 5.3 ns VCCB = 2.5 V VCCB = 3.3 V VCCB = 1.2 V tPZH, tPZL OE B 5.1 VCCB = 1.5 V 4 VCCB = 1.8 V 3.5 VCCB = 2.5 V 3.2 VCCB = 3.3 V 3.1 ns VCCB = 1.2 V VCCB = 1.5 V tPHZ, tPLZ OE A VCCB = 1.8 V 4.8 ns VCCB = 2.5 V VCCB = 3.3 V Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 Submit Documentation Feedback 7 SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com Switching Characteristics: VCCA = 1.2 V (continued) over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 12) FROM (INPUT) PARAMETER tPHZ, tPLZ TO (OUTPUT) OE B VCCB TYP VCCB = 1.2 V 4.7 VCCB = 1.5 V 4 VCCB = 1.8 V 4.1 VCCB = 2.5 V 4.3 VCCB = 3.3 V 5.1 UNIT ns 7.7 Switching Characteristics: VCCA = 1.5 V ± 0.1 V over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN VCCB = 1.2 V tPLH, tPHL A B B A OE A 14.7 VCCB = 1.8 V ± 0.15 V 0.5 13.3 VCCB = 2.5 V ± 0.2 V 0.5 13.9 VCCB = 3.3 V ± 0.3 V 0.5 OE B OE A 0.5 14.7 VCCB = 1.8 V ± 0.15 V 0.5 14.2 VCCB = 2.5 V ± 0.2 V 0.5 13.5 VCCB = 3.3 V ± 0.3 V 0.5 13.2 8 OE Submit Documentation Feedback B ns 5.3 VCCB = 1.5 V ± 0.1 V 0.5 20.5 VCCB = 1.8 V ± 0.15 V 0.5 20.5 VCCB = 2.5 V ± 0.2 V 0.5 20.5 VCCB = 3.3 V ± 0.3 V 0.5 ns 20.5 5.1 VCCB = 1.5 V ± 0.1 V 0.5 18.6 VCCB = 1.8 V ± 0.15 V 0.5 17.7 VCCB = 2.5 V ± 0.2 V 0.5 15.1 VCCB = 3.3 V ± 0.3 V 0.5 14.4 ns 4.8 VCCB = 1.5 V ± 0.1 V 0.5 20.3 VCCB = 1.8 V ± 0.15 V 0.5 20.3 VCCB = 2.5 V ± 0.2 V 0.5 20.3 VCCB = 3.3 V ± 0.3 V 0.5 VCCB = 1.2 V tPHZ, tPLZ 17.2 VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPHZ, tPLZ ns 3.1 VCCB = 1.2 V tPZH, tPZL UNIT 3.1 0.5 VCCB = 1.2 V tPZH, tPZL MAX VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPLH, tPHL TYP ns 20.3 4.7 VCCB = 1.5 V ± 0.1 V 0.5 20.0 VCCB = 1.8 V ± 0.15 V 0.5 18.6 VCCB = 2.5 V ± 0.2 V 0.5 17.9 VCCB = 3.3 V ± 0.3 V 0.5 18.9 ns Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 SN74AVC8T245-Q1 www.ti.com SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 7.8 Switching Characteristics: VCCA = 1.8 V ± 0.15 V over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN VCCB = 1.2 V tPLH, tPHL A B B A OE A 14.2 VCCB = 1.8 V ± 0.15 V 0.5 13.0 VCCB = 2.5 V ± 0.2 V 0.5 12.3 VCCB = 3.3 V ± 0.3 V 0.5 OE B OE A VCCB = 1.5 V ± 0.1 V 0.5 13.3 0.5 13.0 VCCB = 2.5 V ± 0.2 V 0.5 12.1 VCCB = 3.3 V ± 0.3 V 0.5 11.8 OE B ns 3 VCCB = 1.5 V ± 0.1 V 0.5 17.2 VCCB = 1.8 V ± 0.15 V 0.5 17.2 VCCB = 2.5 V ± 0.2 V 0.5 17.2 VCCB = 3.3 V ± 0.3 V 0.5 ns 17.2 4.6 VCCB = 1.5 V ± 0.1 V 0.5 19.6 VCCB = 1.8 V ± 0.15 V 0.5 17.0 VCCB = 2.5 V ± 0.2 V 0.5 14.2 VCCB = 3.3 V ± 0.3 V 0.5 13.2 ns 2.8 VCCB = 1.5 V ± 0.1 V 0.5 17.7 VCCB = 1.8 V ± 0.15 V 0.5 17.7 VCCB = 2.5 V ± 0.2 V 0.5 17.7 VCCB = 3.3 V ± 0.3 V 0.5 VCCB = 1.2 V tPHZ, tPLZ 12.1 VCCB = 1.8 V ± 0.15 V VCCB = 1.2 V tPHZ, tPLZ ns 2.5 VCCB = 1.2 V tPZH, tPZL UNIT 2.5 0.5 VCCB = 1.2 V tPZH, tPZL MAX VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPLH, tPHL TYP ns 17.7 3.9 VCCB = 1.5 V ± 0.1 V 0.5 18.9 VCCB = 1.8 V ± 0.15 V 0.5 17.3 VCCB = 2.5 V ± 0.2 V 0.5 15.8 VCCB = 3.3 V ± 0.3 V 0.5 15.4 ns 7.9 Switching Characteristics: VCCA = 2.5 V ± 0.2 V over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN VCCB = 1.2 V tPLH, tPHL A B B A MAX 0.5 13.5 VCCB = 1.8 V ± 0.15 V 0.5 12.1 VCCB = 2.5 V ± 0.2 V 0.5 10.7 VCCB = 3.3 V ± 0.3 V 0.5 10.2 0.5 13.9 VCCB = 1.8 V ± 0.15 V 0.5 12.3 VCCB = 2.5 V ± 0.2 V 0.5 10.7 VCCB = 3.3 V ± 0.3 V 0.5 10.4 Product Folder Links: SN74AVC8T245-Q1 ns 3 VCCB = 1.5 V ± 0.1 V Copyright © 2008–2017, Texas Instruments Incorporated UNIT 2.4 VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPLH, tPHL TYP Submit Documentation Feedback ns 9 SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com Switching Characteristics: VCCA = 2.5 V ± 0.2 V (continued) over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN VCCB = 1.2 V tPZH, tPZL OE A OE B OE A 13.7 VCCB = 1.8 V ± 0.15 V 0.5 13.7 VCCB = 2.5 V ± 0.2 V 0.5 13.7 VCCB = 3.3 V ± 0.3 V 0.5 OE B ns 13.7 4.5 VCCB = 1.5 V ± 0.1 V 0.5 19.1 VCCB = 1.8 V ± 0.15 V 0.5 16.5 VCCB = 2.5 V ± 0.2 V 0.5 13.3 VCCB = 3.3 V ± 0.3 V 0.5 ns 12.3 1.8 VCCB = 1.5 V ± 0.1 V 0.5 14.2 VCCB = 1.8 V ± 0.15 V 0.5 14.2 VCCB = 2.5 V ± 0.2 V 0.5 14.2 VCCB = 3.3 V ± 0.3 V 0.5 VCCB = 1.2 V tPHZ, tPLZ UNIT 2.2 0.5 VCCB = 1.2 V tPHZ, tPLZ MAX VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPZH, tPZL TYP ns 14.2 3.6 VCCB = 1.5 V ± 0.1 V 0.5 17.7 VCCB = 1.8 V ± 0.15 V 0.5 16.3 VCCB = 2.5 V ± 0.2 V 0.5 14.2 VCCB = 3.3 V ± 0.3 V 0.5 12.1 ns 7.10 Switching Characteristics: VCCA = 3.3 V ± 0.3 V over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN VCCB = 1.2 V tPLH, tPHL A B B A OE A 13.2 VCCB = 1.8 V ± 0.15 V 0.5 11.1 VCCB = 2.5 V ± 0.2 V 0.5 10.4 VCCB = 3.3 V ± 0.3 V 0.5 9.7 10 OE Submit Documentation Feedback B ns 3.5 VCCB = 1.5 V ± 0.1 V 0.5 17.2 VCCB = 1.8 V ± 0.15 V 0.5 12.1 VCCB = 2.5 V ± 0.2 V 0.5 10.2 VCCB = 3.3 V ± 0.3 V 0.5 ns 9.7 2 VCCB = 1.5 V ± 0.1 V 0.5 12.3 VCCB = 1.8 V ± 0.15 V 0.5 12.3 VCCB = 2.5 V ± 0.2 V 0.5 12.3 VCCB = 3.3 V ± 0.3 V 0.5 12.3 VCCB = 1.2 V tPZH, tPZL UNIT 2.3 0.5 VCCB = 1.2 V tPZH, tPZL MAX VCCB = 1.5 V ± 0.1 V VCCB = 1.2 V tPLH, tPHL TYP ns 4.5 VCCB = 1.5 V ± 0.1 V 0.5 18.9 VCCB = 1.8 V ± 0.15 V 0.5 16.1 VCCB = 2.5 V ± 0.2 V 0.5 13.2 VCCB = 3.3 V ± 0.3 V 0.5 12.3 ns Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 SN74AVC8T245-Q1 www.ti.com SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 Switching Characteristics: VCCA = 3.3 V ± 0.3 V (continued) over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 12) PARAMETER FROM (INPUT) TO (OUTPUT) VCCB MIN TYP VCCB = 1.2 V tPHZ, tPLZ OE A OE B UNIT 1.7 VCCB = 1.5 V ± 0.1 V 0.5 12.3 VCCB = 1.8 V ± 0.15 V 0.5 12.3 VCCB = 2.5 V ± 0.2 V 0.5 12.3 VCCB = 3.3 V ± 0.3 V 0.5 ns 12.3 VCCB = 1.2 V tPHZ, tPLZ MAX 3.4 VCCB = 1.5 V ± 0.1 V 0.5 17.4 VCCB = 1.8 V ± 0.15 V 0.5 15.8 VCCB = 2.5 V ± 0.2 V 0.5 13.7 VCCB = 3.3 V ± 0.3 V 0.5 12.6 ns 7.11 Operating Characteristics TA = 25°C PARAMETER TEST CONDITIONS VCCA TYP UNIT VCCA = VCCB = 1.2 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs enabled VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V A to B VCCA = VCCB = 1.2 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled CpdA VCCA = VCCB = 1.5 V VCCA = VCCB = 1.5 V VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V (1) CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs enabled B to A VCCA = VCCB = 1.2 V 12 VCCA = VCCB = 1.5 V 12 VCCA = VCCB = 1.8 V 12 VCCA = VCCB = 2.5 V 13 VCCA = VCCB = 3.3 V 14 pF VCCA = VCCB = 1.2 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled VCCA = VCCB = 1.5 V VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V (1) Power dissipation capacitance per transceiver Copyright © 2008–2017, Texas Instruments Incorporated Product Folder Links: SN74AVC8T245-Q1 Submit Documentation Feedback 11 SN74AVC8T245-Q1 SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017 www.ti.com Operating Characteristics (continued) TA = 25°C PARAMETER TEST CONDITIONS CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs enabled A to B TYP VCCA = VCCB = 1.2 V 12 VCCA = VCCB = 1.5 V 12 VCCA = VCCB = 1.8 V 12 VCCA = VCCB = 2.5 V 13 VCCA = VCCB = 3.3 V 14 UNIT VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled CpdB VCCA VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V (1) pF VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs enabled VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V B to A VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled VCCA = VCCB = 1.8 V 1 VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V Table 1. Typical Total Static Current Consumption (ICCA + ICCB) VCCB 12 VCCA 0V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V UNIT 0V 0