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74AVC4T245RGYRG4

74AVC4T245RGYRG4

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    VFQFN16_EP

  • 描述:

    IC TRANSLATION TXRX 3.6V 16VQFN

  • 数据手册
  • 价格&库存
74AVC4T245RGYRG4 数据手册
Product Folder Sample & Buy Technical Documents Support & Community Tools & Software SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 SN74AVC4T245 Dual-Bit Bus Transceiver with Configurable Voltage Translation and 3-State Outputs 1 Features 3 Description • This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. 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. The SN74AVC4T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 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. Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range I/Os Are 4.6-V Tolerant Ioff Supports Partial Power-Down-Mode Operation Maximum Data Rates – 380 Mbps (1.8-V to 3.3-V Translation) – 200 Mbps (< 1.8-V to 3.3-V Translation) – 200 Mbps (Translate to 2.5 V or 1.8 V) – 150 Mbps (Translate to 1.5 V) – 100 Mbps (Translate to 1.2 V) Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 – 8000-V Human-Body Model (A114-A) – 150-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) 1 • • • • • • The SN74AVC4T245 device is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA. 2 Applications • • • • The SN74AVC4T245 device is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. Personal Electronics Industrial Enterprise Telecom This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the highimpedance state. Logic Diagram (Positive Logic) for 1/2 of SN74AVC4T245 DIR OE A1 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. Device Information(1) B1 PART NUMBER A2 SN74AVC4T245 B2 PACKAGE BODY SIZE (NOM) SOIC (16) 9.90 mm x 3.91 mm TVSOP (16) 3.60 mm x 4.40 mm TSSOP (16) 5.00 mm x 4.40 mm VQFN (16) 4.00 mm x 3.50 mm UQFN (16) 2.60 mm x 1.80 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 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. SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 7 1 1 1 2 3 4 Absolute Maximum Ratings ..................................... 4 Handling Ratings....................................................... 4 Recommended Operating Conditions....................... 5 Thermal Information .................................................. 5 Electrical Characteristics .......................................... 6 Operating Characteristics.......................................... 7 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..... 8 Switching Characteristics: VCCA = 2.5 V ± 0.2 V..... 9 Switching Characteristics: VCCA = 3.3 V ± 0.3 V..... 9 Typical Characteristics .......................................... 10 Parameter Measurement Information ................ 11 8 Detailed Description ............................................ 12 8.1 8.2 8.3 8.4 9 Overview ................................................................. Functional Block Diagram ....................................... Feature Description................................................. Device Functional Modes........................................ 12 12 13 13 Application and Implementation ........................ 14 9.1 Application Information............................................ 14 9.2 Typical Application ................................................. 14 10 Power Supply Recommendations ..................... 16 11 Layout................................................................... 16 11.1 Layout Guidelines ................................................. 16 11.2 Layout Example .................................................... 16 12 Device and Documentation Support ................. 17 12.1 Trademarks ........................................................... 17 12.2 Electrostatic Discharge Caution ............................ 17 12.3 Glossary ................................................................ 17 13 Mechanical, Packaging, and Orderable Information ........................................................... 17 13.1 Package Materials Information ............................. 18 4 Revision History Changes from Revision F (October 2014) to Revision G Page • Changed Pin Functions table. ............................................................................................................................................... 3 • Changed Typical Application schematic. ............................................................................................................................. 14 Changes from Revision E (December 2011) to Revision F • Added Applications, Pin Configuration and Functions section, Handling Rating table, Thermal Information table, Feature Description section, Typical Characteristics 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 Changes from Revision D (September 2007) to Revision E • 2 Page Page Fixed tPZL VCCB = 3.3 V parameter typographical error from 36.6 to 3.6. ............................................................................... 7 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 5 Pin Configuration and Functions 1 16 1B2 1OE VCCB 2B1 15 2OE 16 2 VCCB 1 1DIR VCCA VCCA RSV PACKAGE (TOP VIEW) RGY PACKAGE (TOP VIEW) 1B1 D, DGV, OR PW PACKAGE (TOP VIEW) 16 15 14 13 4 13 1B1 1DIR 2 15 1OE 12 2B2 14 2OE 1OE VCCB 1 3 2 11 GND 13 1B1 VCCA 3 10 GND 1DIR 4 9 2A2 1A2 5 12 1B2 2DIR 2A1 6 11 2B1 1A1 4 2A2 7 10 2B2 5 GND 8 9 GND 1A2 2A1 12 11 7 10 2B2 8 9 GND 6 1B2 2B1 GND 2A2 GND or FLOAT 5 6 7 8 2A1 1A1 1A2 14 1A1 3 2OE 2DIR 2DIR Pin Functions PIN NAME 1A1 NO. TYPE DESCRIPTION D, DGV, PW, RGY RSV 4 6 I/O Input/output 1A1. Referenced to VCCA. 1A2 5 7 I/O Input/output 1A2. Referenced to VCCA. 1B1 13 15 I/O Input/output 1B1. Referenced to VCCB. 1B2 12 14 I/O Input/output 1B2. Referenced to VCCB. 1DIR 2 4 I Direction-control input for ‘1’ ports 1OE 15 1 I 3-state output-mode enables. Pull OE high to place ‘1’ outputs in 3-state mode. Referenced to VCCA. 2A1 6 8 I/O Input/output 2A1. Referenced to VCCA. 2A2 7 9 I/O Input/output 2A2. Referenced to VCCA. 2B1 11 13 I/O Input/output 2B1. Referenced to VCCB. 2B2 10 12 I/O Input/output 2B2. Referenced to VCCB. 2DIR 3 5 I Direction-control input for ‘2’ ports 2OE 14 16 I 3-state output-mode enables. Pull OE high to place ‘2’ outputs in 3-state mode. Referenced to VCCA. GND 8, 9 10, 11 — Ground VCCA 1 3 — A-port power supply voltage. 1.2 V ≤ VCCA ≤ 3.6 V VCCB 16 2 — B-port power supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 3 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX –0.5 4.6 I/O ports (A port) –0.5 4.6 I/O ports (B port) –0.5 4.6 Control inputs –0.5 4.6 A port –0.5 4.6 B port –0.5 4.6 A port –0.5 VCCA + 0.5 B port –0.5 VCCB + 0.5 UNIT VCCA VCCB Supply voltage range VI Input voltage range (2) VO Voltage range applied to any output in the high-impedance or power-off state (2) VO Voltage range applied to any output in the high or low state (2) (3) IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA IO Continuous output current ±50 mA ±100 mA Continuous current through VCCA, VCCB, or GND (1) (2) (3) V V V V 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 input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed. 6.2 Handling Ratings Tstg Storage temperature range V(ESD) Electrostatic discharge MIN MAX UNIT –65 150 °C Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins (1) 8 Charged device model (CDM), per JEDEC specification JESD22-C101, all pins (2) 1 Machine model (C101) (1) (2) 4 kV 150 V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 6.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) (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 (4) Data inputs (4) 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 V 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) (5) DIR (referenced to VCCA) (5) Output voltage IOH 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 Active state 0 VCCO 3-state 0 3.6 Low-level output current Δt/Δv Input transition rise or fall rate TA Operating free-air temperature (4) (5) VCCA × 0.65 High-level output current IOL (1) (2) (3) 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 1.1 V to 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 –40 V V V mA mA 5 ns/V 85 °C VCCI is the VCC associated with the input port. VCCO is the VCC associated with the output port. All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs (SCBA004). For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V For VCCI values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V 6.4 Thermal Information SN74AVC4T245 THERMAL METRIC (1) D DGV PW RGY RSV UNIT 16 PINS RθJA Junction-to-ambient thermal resistance 85.5 126.0 112.0 37.5 146.9 RθJC(top) Junction-to-case (top) thermal resistance 46.9 50.8 46.8 54.5 53.6 RθJB Junction-to-board thermal resistance 43.0 57.7 57.1 15.6 75.6 ψJT Junction-to-top characterization parameter 13.4 5.7 5.7 0.5 13.5 ψJB Junction-to-board characterization parameter 42.7 57.2 56.5 15.8 75.6 RθJC(bot) Junction-to-case (bottom) thermal resistance — — — 3.5 — (1) °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953). Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 5 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 6.5 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –100 μA VCCA MIN TYP MAX 1.05 1.65 V 1.65 V 1.2 IOH = –9 mA 2.3 V 2.3 V 1.75 IOH = –12 mA 3V 3V 2.3 0.95 1.2 V to 3.6 V 1.2 V to 3.6 V V 0.2 1.2 V 1.2 V 1.4 V 1.4 V 0.35 1.65 V 1.65 V 0.45 IOL = 9 mA 2.3 V 2.3 V 0.55 IOL = 12 mA 3V 3V 0.7 IOL = 6 mA IOL = 8 mA VI = VIL II Control inputs Ioff A or B port VI or VO = 0 to 3.6 V IOZ A or B port VI = VCCA or GND 1.2 V to 3.6 V 1.2 V to 3.6 V VO = VCCO or GND, VI = VCCI or GND, OE = VIH 0.25 ±0.025 ±0.25 ±1 0V 0 V to 3.6 V ±0.1 ±1 ±5 0 V to 3.6 V 0V ±0.1 ±1 ±5 3.6 V 3.6 V ±0.5 ±2.5 ±5 1.2 V to 3.6 V 1.2 V to 3.6 V VI = VCCI or GND, IO = 0 VI = VCCI or GND, IO = 0 ICCA + ICCB VI = VCCI or GND, IO = 0 Ci Control inputs 0 V to 3.6 V –2 0 V to 3.6 V 0V 8 Cio A or B port VO = 3.3 V or GND μA μA μA μA 8 0V 0 V to 3.6 V 8 0 V to 3.6 V 0V –2 1.2 V to 3.6 V 1.2 V to 3.6 V VI = 3.3 V or GND V 8 0V 1.2 V to 3.6 V 1.2 V to 3.6 V ICCB UNIT VCCO – 0.2 1.4 V IOL = 3 mA 6 MIN 1.4 V VI = VIH IOL = 100 μA (1) (2) MAX 1.2 V IOH = –8 mA ICCA –40°C to 85°C 1.2 V IOH = –6 mA VOL TA = 25°C 1.2 V to 3.6 V 1.2 V to 3.6 V IOH = –3 mA VOH VCCB μA 16 μA 3.3 V 3.3 V 3.5 4.5 pF 3.3 V 3.3 V 6 7 pF VCCO is the VCC associated with the output port. VCCI is the VCC associated with the input port. Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 6.6 Operating Characteristics TA = 25°C VCCA = VCCB = 1.2 V VCCA = VCCB = 1.5 V VCCA = VCCB = 1.8 V VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V TYP TYP TYP TYP TYP 1 1 1 1.5 2 1 1 1 1 1 12 12.5 13 14 15 Outputs disabled 1 1 1 1 1 Outputs enabled 12 12.5 13 14 15 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 TEST CONDITIONS PARAMETER A to B CpdA (1) B to A A to B CpdB (1) B to A (1) Outputs enabled Outputs disabled Outputs enabled Outputs disabled Outputs enabled CL = 0, f = 10 MHz, tr = tf = 1 ns CL = 0, f = 10 MHz, tr = tf = 1 ns Outputs disabled UNIT pF pF Power dissipation capacitance per transceiver 6.7 Switching Characteristics: VCCA = 1.2 V over recommended operating free-air temperature range, VCCA = 1.2 V (unless otherwise noted) (see Figure 3) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP TYP TYP TYP TYP 3.4 2.9 2.7 2.6 2.8 3.4 2.9 2.7 2.6 2.8 3.6 3.1 2.8 2.6 2.6 3.6 3.1 2.8 2.6 2.6 5.6 4.7 4.3 3.9 3.7 5.6 4.7 4.3 3.9 3.7 5 4.3 3.9 3.6 3.6 5 4.3 3.9 3.6 3.6 6.2 5.2 5.2 4.3 4.8 6.2 5.2 5.2 4.3 4.8 5.9 5.1 5 4.7 5.5 5.9 5.1 5 4.7 5.5 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 UNIT ns ns ns ns ns ns 7 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 6.8 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 3) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 3.2 0.3 6.3 0.3 5.2 0.4 4.2 0.4 4.2 3.2 0.3 6.3 0.3 5.2 0.4 4.2 0.4 4.2 3.3 0.7 6.3 0.5 6 0.4 5.7 0.3 5.6 3.3 0.7 6.3 0.5 6 0.4 5.7 0.3 5.6 4.9 1.4 9.6 1.1 9.5 0.7 9.4 0.4 9.4 4.9 1.4 9.6 1.1 9.5 0.7 9.4 0.4 9.4 4.5 1.4 9.6 1.1 7.7 0.9 5.8 0.9 5.6 4.5 1.4 9.6 1.1 7.7 0.9 5.8 0.9 5.6 5.6 1.8 10.2 1.5 10.2 1.3 10.2 1.6 10.2 5.6 1.8 10.2 1.5 10.2 1.3 10.2 1.6 10.2 5.2 1.9 10.3 1.9 9.1 1.4 7.4 1.2 7.6 5.2 1.9 10.3 1.9 9.1 1.4 7.4 1.2 7.6 UNIT ns ns ns ns ns ns 6.9 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 3) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ 8 FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 2.9 0.1 6 0.1 4.9 0.1 3.9 0.3 3.9 2.9 0.1 6 0.1 4.9 0.1 3.9 0.3 3.9 3 0.6 5.3 0.5 4.9 0.3 4.6 0.3 4.5 3 0.6 5.3 0.5 4.9 0.3 4.6 0.3 4.5 4.4 1 7.4 1 7.3 0.6 7.3 0.4 7.2 4.4 1 7.4 1 7.3 0.6 7.3 0.4 7.2 4.1 1.2 9.2 1 7.4 0.8 5.3 0.8 4.6 4.1 1.2 9.2 1 7.4 0.8 5.3 0.8 4.6 5.4 1.6 8.6 1.8 8.7 1.3 8.7 1.6 8.7 5.4 1.6 8.6 1.8 8.7 1.3 8.7 1.6 8.7 5 1.7 9.9 1.6 8.7 1.2 6.9 1 6.9 5 1.7 9.9 1.6 8.7 1.2 6.9 1 6.9 Submit Documentation Feedback UNIT ns ns ns ns ns ns Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 6.10 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 3) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 2.8 0.1 5.7 0.1 4.6 0.2 3.5 0.1 3.6 2.8 0.1 5.7 0.1 4.6 0.2 3.5 0.1 3.6 2.7 0.6 4.2 0.4 3.9 0.2 3.4 0.2 3.3 2.7 0.6 4.2 0.4 3.9 0.2 3.4 0.2 3.3 4 0.7 6.5 0.7 5.2 0.6 4.8 0.4 4.8 4 0.7 6.5 0.7 5.2 0.6 4.8 0.4 4.8 3.8 0.9 8.8 0.8 7 0.6 4.8 0.6 4 3.8 0.9 8.8 0.8 7 0.6 4.8 0.6 4 4.7 1 8.4 1 8.4 1 6.2 1 6.6 4.7 1 8.4 1 8.4 1 6.2 1 6.6 4.5 1.5 9.4 1.3 8.2 1.1 6.2 0.9 5.2 4.5 1.5 9.4 1.3 8.2 1.1 6.2 0.9 5.2 UNIT ns ns ns ns ns ns 6.11 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 3) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V TYP MIN MAX MIN MAX MIN MAX MIN MAX 2.9 0.1 5.6 0.1 4.5 0.1 3.3 0.1 2.9 2.9 0.1 5.6 0.1 4.5 0.1 3.3 0.1 2.9 2.6 0.6 4.2 0.4 3.4 0.2 3 0.1 2.8 2.6 0.6 4.2 0.4 3.4 0.2 3 0.1 2.8 3.8 0.6 8.7 0.6 5.2 0.6 3.8 0.4 3.8 3.8 0.6 8.7 0.6 5.2 0.6 3.8 0.4 3.8 3.7 0.8 8.7 0.6 6.8 0.5 4.7 0.5 3.8 3.7 0.8 8.7 0.6 6.8 0.5 4.7 0.5 3.8 4.8 0.7 9.3 0.7 8.3 0.7 5.6 0.7 6.6 4.8 0.7 9.3 0.7 8.3 0.7 5.6 0.7 6.6 5.3 1.4 9.3 1.2 8.1 1 6.4 0.8 6.2 5.3 1.4 9.3 1.2 8.1 1 6.4 0.8 6.2 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 UNIT ns ns ns ns ns ns 9 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 3.6 3.6 3.2 3.2 2.8 2.8 2.4 2.4 VOH Voltage (V) VOL Voltage (V) 6.12 Typical Characteristics 2.0 1.6 1.6 1.2 1.2 0.8 0.8 -40 °C 25 °C 85 °C 0.4 -40 °C 25 °C 85 °C 0.4 0 0 0 20 40 60 80 IOL Current (mA) Figure 1. Low-Level Output Voltage (VOL) vs Low-Level Current (IOL) 10 2.0 100 0 20 40 60 80 100 IOH Current (mA) Figure 2. High-Level Output Voltage (VOH) vs High-Level Current (IOH) Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 7 Parameter Measurement Information 2 × VCCO S1 RL From Output Under Test Open GND CL (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 2 × VCCO GND RL tw LOAD CIRCUIT VCCI VCCI/2 Input VCCO CL RL VTP 1.2 V 1.5 V ± 0.1 V 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 15 pF 15 pF 15 pF 15 pF 15 pF 2 kΩ 2 kΩ 2 kΩ 2 kΩ 2 kΩ 0.1 V 0.1 V 0.15 V 0.15 V 0.3 V VCCI/2 0V VOLTAGE WAVEFORMS PULSE DURATION VCCA Output Control (low-level enabling) VCCA/2 VCCA/2 0V tPLZ tPZL VCCI Input VCCI/2 VCCI/2 0V tPLH Output tPHL VOH VCCO/2 VOL VCCO/2 VCCO Output Waveform 1 S1 at 2 × VCCO (see Note B) VCCO/2 VOL + VTP VOL tPHZ tPZH Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VCCO/2 VOH − VTP VOH 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, dv/dt ≥ 1 V/ns. D. The outputs are measured one at a time, with one transition per measurement. E. t PLZ and t PHZ are the same as tdis. F. t PZL and t PZH are the same as ten. G. tPLH and t PHL are the same as tpd. H. VCCI is the VCC associated with the input port. I. VCCO is the VCC associated with the output port. Figure 3. Load and Circuit and Voltage Waveforms Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 11 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 8 Detailed Description 8.1 Overview The SN74AVC4T245 is a 4-bit, dual-supply noninverting bidirectional voltage level translation device. Ax pins and control pins (1DIR, 2DIR,1OE, and 2OE) are supported by VCCA, and Bx pins are supported by VCCB. The A port is able to accept I/O voltages ranging from 1.2 V to 3.6 V, while the B port can accept I/O voltages from 1.2 V to 3.6 V. A high on DIR allows data transmission from Ax to Bx and a low on DIR allows data transmission from Bx to Ax when OE is set to low. When OE is set to high, both Ax and Bx pins are in the high-impedance state. 8.2 Functional Block Diagram DIR OE A1 B1 A2 B2 Figure 4. Logic Diagram (Positive Logic) for 1/2 of SN74AVC4T245 12 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 8.3 Feature Description 8.3.1 Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range Both VCCA and VCCB can be supplied at any voltage between 1.2 V and 3.6 V; thus, making the device suitable for translating between any of the low voltage nodes (1.2 V, 1.8 V, 2.5 V, and 3.3 V). 8.3.2 Supports High Speed Translation The SN74AVC4T245 device can support high data rate applications. The translated signal data rate can be up to 380 Mbps when the signal is translated from 1.8 V to 3.3 V. 8.3.3 Ioff Supports Partial-Power-Down Mode Operation Ioff will prevent backflow current by disabling I/O output circuits when device is in partial-power-down mode. 8.4 Device Functional Modes Table 1. Function Table (Each 2-Bit Section) (1) CONTROL INPUTS OE (1) OUTPUT CIRCUITS B PORT OPERATION DIR A PORT L L Enabled Hi-Z B data to A bus L H Hi-Z Enabled A data to B bus H X Hi-Z Hi-Z Isolation Input circuits of the data I/Os are always active. Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 13 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The SN74AVC4T245 device can be used in level-translation applications for interfacing devices or systems operating at different interface voltages with one another. The SN74AVC4T245 device is ideal for use in applications where a push-pull driver is connected to the data I/Os. The max data rate can be up to 380 Mbps when device translates a signal from 1.8 V to 3.3 V. 9.2 Typical Application 1.2 V 3.3 V 0.1 μC 0.1 μC VCCA 1 µF VCCB 1OE 2OE 1DIR 2DIR 1.2 V Controller Data GND 3.3 V System SN74AVC4T245 1A1 1B1 1A2 1B2 2A1 2B1 2A2 2B2 Data GND GND Figure 5. Typical Application Diagram 14 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 Typical Application (continued) 9.2.1 Design Requirements For the design example shown in Typical Application, use the parameters listed in Table 2. Table 2. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Input voltage range 1.2 V to 3.6 V Output voltage range 1.2 V to 3.6 V 9.2.2 Detailed Design Procedure To begin the design process, determine the following: • Input voltage range – Use the supply voltage of the device that is driving the SN74AVC4T245 device to determine the input voltage range. For a valid logic high, the value must exceed the VIH of the input port. For a valid logic low, the value must be less than the VIL of the input port. • Output voltage range – Use the supply voltage of the device that the SN74AVC4T245 device is driving to determine the output voltage range. 9.2.3 Application Curves Input (1.2 V) Output (3.3 V) Figure 6. Translation Up (1.2 V to 3.3 V) at 2.5 MHz Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 15 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 10 Power Supply Recommendations The SN74AVC4T245 device uses two separate configurable power-supply rails, VCCA and VCCB. VCCA accepts any supply voltage from 1.2 V to 3.6 V and VCCB accepts any supply voltage from 1.2 V to 3.6 V. The A port and B port are designed to track VCCA and VCCB respectively allowing for 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. The output-enable (OE) input circuit is designed so that it is supplied by VCCA and when the OE input is high, all outputs are placed in the high-impedance state. To ensure the high-impedance state of the outputs during power up or power down, the OE input pin must be tied to VCCA through a pullup resistor and must not be enabled until VCCA and VCCB are fully ramped and stable. The minimum value of the pullup resistor to VCCA is determined by the current-sinking capability of the driver. 11 Layout 11.1 Layout Guidelines To • • • ensure reliability of the device, following common printed-circuit board layout guidelines is recommended. Bypass capacitors should be used on power supplies. Short trace lengths should be used to avoid excessive loading. Place pads on the signal paths for loading capacitors or pullup resistors to help adjust rise and fall times of signals, depending on the system requirements. 11.2 Layout Example LEGEND VIA to Power Plane Polygonal Copper Pour VIA to GND Plane (Inner Layer) VCCB VCCA Bypass Capacitor Bypass Capacitor VCCA 1 VCCA VCCB 16 2 1DIR 1OE 15 3 2DIR 2OE 14 From Controller 4 1A1 1B1 13 To System From Controller 5 1A2 1B2 12 To System To Controller 6 2A1 2B1 11 From System To Controller 7 2A2 2B2 10 From System 8 GND GND 9 Keep OE high until VCCA and VCCB are powered up SN74AVC4T245 16 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 12 Device and Documentation Support 12.1 Trademarks All trademarks are the property of their respective owners. 12.2 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.3 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 17 SN74AVC4T245 SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 www.ti.com 13.1 Package Materials Information 13.1.1 Tape and Reel Information REEL DIMENSIONS TAPE DIMENSIONS K0 P1 B0 W Reel Diameter Cavity A0 B0 K0 W P1 A0 Dimension designed to accommodate the component width Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Reel Width (W1) QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Sprocket Holes Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 User Direction of Feed Pocket Quadrants Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) A0 (mm) SN74AVC4T245DGVR TVSOP DGV 16 2000 330.0 12.4 SN74AVC4T245DR SOIC D 16 2500 330.0 16.4 SN74AVC4T245PWR TSSOP PW 16 2000 330.0 SN74AVC4T245RGYR VQFN RGY 16 3000 SN74AVC4T245RGYR VQFN RGY 16 SN74AVC4T245RSVR UQFN RSV 16 18 B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant 6.8 4.0 1.6 8.0 12.0 Q1 6.5 10.3 2.1 8.0 16.0 Q1 12.4 6.9 5.6 1.6 8.0 12.0 Q1 330.0 12.4 3.8 4.3 1.5 8.0 12.0 Q1 3000 330.0 12.4 3.8 4.3 1.5 8.0 12.0 Q1 3000 180.0 12.4 2.1 2.9 0.75 4.0 12.0 Q1 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 SN74AVC4T245 www.ti.com SCES576G – JUNE 2004 – REVISED NOVEMBER 2014 TAPE AND REEL BOX DIMENSIONS Width (mm) W L H Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74AVC4T245DGVR TVSOP DGV 16 2000 367.0 367.0 35.0 SN74AVC4T245DR SOIC D 16 2500 333.2 345.9 28.6 SN74AVC4T245PWR TSSOP PW 16 2000 367.0 367.0 35.0 SN74AVC4T245RGYR VQFN RGY 16 3000 367.0 367.0 35.0 SN74AVC4T245RGYR VQFN RGY 16 3000 355.0 350.0 50.0 SN74AVC4T245RSVR UQFN RSV 16 3000 203.0 203.0 35.0 Submit Documentation Feedback Copyright © 2004–2014, Texas Instruments Incorporated Product Folder Links: SN74AVC4T245 19 PACKAGE OPTION ADDENDUM www.ti.com 19-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) (1) 74AVC4T245DGVRE4 ACTIVE TVSOP DGV 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples 74AVC4T245RGYRG4 ACTIVE VQFN RGY 16 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 WT245 Samples 74AVC4T245RSVR-NT ACTIVE UQFN RSV 16 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ZWU Samples 74AVC4T245RSVRG4 ACTIVE UQFN RSV 16 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ZWU Samples SN74AVC4T245D ACTIVE SOIC D 16 40 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AVC4T245 Samples SN74AVC4T245DGVR ACTIVE TVSOP DGV 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245DR ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AVC4T245 Samples SN74AVC4T245DRE4 ACTIVE SOIC D 16 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AVC4T245 Samples SN74AVC4T245DT ACTIVE SOIC D 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 AVC4T245 Samples SN74AVC4T245PW ACTIVE TSSOP PW 16 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWE4 ACTIVE TSSOP PW 16 90 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWR ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWRE4 ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWRG4 ACTIVE TSSOP PW 16 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWT ACTIVE TSSOP PW 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWTE4 ACTIVE TSSOP PW 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245PWTG4 ACTIVE TSSOP PW 16 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 WT245 Samples SN74AVC4T245RGYR ACTIVE VQFN RGY 16 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 WT245 Samples SN74AVC4T245RSVR ACTIVE UQFN RSV 16 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 ZWU Samples The marketing status values are defined as follows: Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 19-Oct-2022 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
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