SN74LVC1T45MDCKREP

SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS FEATURES 1 • • • • • • • • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range VCC Isolation Feature – If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State DIR Input Circuit Referenced to VCCA Low Power Consumption, 4-µA Max ICC ±24-mA Output Drive at 3.3 V Ioff Supports Partial-Power-Down Mode Operation Max Data Rates – 420 Mbps (3.3-V to 5-V Translation) – 210 Mbps (Translate to 3.3 V) – 140 Mbps (Translate to 2.5 V) – 75 Mbps (Translate to 1.8 V) • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS • • • • • • • Controlled Baseline One Assembly/Test Site One Fabrication Site Available in Military (–55°C/125°C) Temperature Range (1) Extended Product Life Cycle Extended Product-Change Notification Product Traceability (1) Additional temperature ranges are available – contact factory DCK PACKAGE (TOP VIEW) VCCA 1 6 VCCB GND 2 5 DIR A 3 4 B See mechanical drawings for dimensions. DESCRIPTION/ORDERING INFORMATION This single-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 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. ORDERING INFORMATION (1) TA –55°C to 125°C (1) (2) (3) PACKAGE (2) SOT (SC-70) – DCK ORDERABLE PART NUMBER Reel of 3000 SN74LVC1T45MDCKREP TOP-SIDE MARKING (3) NXG For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI Web site at www.ti.com. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. The actual top-side marking has one additional character that designates the assembly/test site. 1 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2008, Texas Instruments Incorporated SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) The SN74LVC1T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. 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 always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. The SN74LVC1T45 is designed so that the DIR input is powered by VCCA. 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 high-impedance state. FUNCTION TABLE (1) (1) INPUT DIR OPERATION L B data to A bus H A data to B bus Input circuits of the data I/Os always are active. LOGIC DIAGRAM (POSITIVE LOGIC) DIR A 5 3 4 VCCA 2 B VCCB Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX Supply voltage range –0.5 6.5 V VI Input voltage range (2) –0.5 6.5 V VO Voltage range applied to any output in the high-impedance or power-off state (2) –0.5 6.5 V A port –0.5 VCCA + 0.5 B port –0.5 VCCB + 0.5 VCCA VCCB UNIT 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 Continuous current through VCC or GND θJA Package thermal impedance (4) Tstg Storage temperature range (1) (2) (3) (4) –65 V ±100 mA 259 °C/W 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. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. The value of VCC is provided in the recommended operating conditions table. The package thermal impedance is calculated in accordance with JESD 51-7. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP 3 SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Recommended Operating Conditions (1) (2) (3) VCCI VCCA VCCB VCCO Supply voltage 1.65 V to 1.95 V High-level input voltage VIH MAX 1.65 5.5 1.65 5.5 1.7 3 V to 3.6 V VCCI × 0.7 1.65 V to 1.95 V VIL Data inputs (4) VCCI × 0.35 2.3 V to 2.7 V 0.7 3 V to 3.6 V 0.8 4.5 V to 5.5 V High-level input voltage DIR (referenced to VCCA) (5) VCCA × 0.65 2.3 V to 2.7 V 1.7 3 V to 3.6 V V 2 4.5 V to 5.5 V VCCA × 0.7 1.65 V to 1.95 V DIR (referenced to VCCA) (5) V VCCI × 0.3 1.65 V to 1.95 V VIH V V 2 4.5 V to 5.5 V Low-level input voltage UNIT VCCI × 0.65 2.3 V to 2.7 V Data inputs (4) MIN VCCA × 0.35 2.3 V to 2.7 V 0.7 3 V to 3.6 V 0.8 VIL Low-level input voltage VI Input voltage 0 5.5 V VO Output voltage 0 VCCO V 4.5 V to 5.5 V VCCA × 0.3 1.65 V to 1.95 V IOH High-level output current IOL Low-level output current Δt/Δv Input transition rise or fall rate Data inputs Control inputs TA (1) (2) (3) (4) (5) 4 V –4 2.3 V to 2.7 V –8 3 V to 3.6 V –24 4.5 V to 5.5 V –32 1.65 V to 1.95 V 4 2.3 V to 2.7 V 8 3 V to 3.6 V 24 4.5 V to 5.5 V 32 1.65 V to 1.95 V 20 2.3 V to 2.7 V 20 3 V to 3.6 V 10 4.5 V to 5.5 V 5 1.65 V to 5.5 V 5 Operating free-air temperature –55 125 mA mA ns/V °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, literature number 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. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –100 µA IOH = –8 mA 1.65 V to 4.5 V 1.65 V to 4.5 V 1.65 V 1.65 V 1.2 2.3 V 2.3 V 1.9 VI = VIH DIR A port Ioff B port A or B port IOZ ICCA A port ΔICCA MAX V 3V 2.4 3.8 IOL = 100 µA 1.65 V to 4.5 V 1.65 V to 4.5 V 0.1 1.65 V 1.65 V 0.45 VI = VIL 2.3 V 2.3 V 0.3 IOL = 24 mA 3V 3V 0.55 IOL = 32 mA 4.5 V 4.5 V 0.55 1.65 V to 5.5 V 1.65 V to 5.5 V ±1 ±2 0V 0 to 5.5 V ±1 ±6 0 to 5.5 V 0V ±1 ±6 1.65 V to 5.5 V 1.65 V to 5.5 V ±1 ±6 1.65 V to 5.5 V 1.65 V to 5.5 V 4 5.5 V 0V 2 -4 VI = VCCA or GND VI or VO = 0 to 5.5 V VO = VCCO or GND VI = VCCI or GND, IO = 0 0V 5.5 V 1.65 V to 5.5 V 1.65 V to 5.5 V 4 5.5 V 0V -4 0V 5.5 V 2 1.65 V to 5.5 V 1.65 V to 5.5 V 4 3 V to 5.5 V 3 V to 5.5 V A port at VCCA – 0.6 V, DIR at VCCA, B port = open DIR at VCCA – 0.6 V, B port = open, A port at VCCA or GND ΔICCB B port B port at VCCB – 0.6 V, DIR at GND, A port = open Ci DIR Cio A or B port UNIT VCCO – 0.1 4.5 V DIR (1) (2) MIN 3V VI = VCCI or GND, IO = 0 ICCA + ICCB (see Table 1) MAX 4.5 V VI = VCCI or GND, IO = 0 ICCB TYP IOH = –32 mA IOL = 8 mA II MIN IOH = –24 mA IOL = 4 mA VOL –55°C to 125°C VCCB IOH = –4 mA VOH TA = 25°C VCCA V µA µA µA µA µA µA 50 µA 50 50 µA 3 V to 5.5 V 3 V to 5.5 V VI = VCCA or GND 3.3 V 3.3 V 2.5 pF VO = VCCA/B or GND 3.3 V 3.3 V 6 pF VCCO is the VCC associated with the output port. VCCI is the VCC associated with the input port. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP 5 SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A B B A DIR A DIR B DIR A DIR B tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH (1) tPZL (1) tPZH (1) tPZL (1) (1) VCCB = 1.8 V ±0.15 V VCCB = 2.5 V ±0.2 V VCCB = 3.3 V ±0.3 V VCCB = 5 V ±0.5 V UNIT MIN MAX MIN MAX MIN MAX MIN MAX 3 20.7 2.2 13.3 1.7 11.3 1.4 10.2 2.8 17.3 2.2 11.5 1.8 10.1 1.7 10 3 20.7 2.3 19 2.1 18.5 1.9 18.1 2.8 17.3 2.1 15.9 2 18.6 1.8 15.2 5.2 22.4 4.8 21.5 4.7 21.4 5.1 20.1 2.3 13.5 2.1 13.5 2.4 13.7 3.1 13.9 7.4 24.9 4.9 14.5 4.6 13.3 2.8 11.2 4.2 19 3.7 12.2 3.3 11.4 2.4 10.4 39.7 31.2 29.9 27.5 42.2 30.4 28.9 26.4 34.2 26.8 25 24.1 39.7 33 31.5 30.1 ns ns ns ns ns ns The enable time is a calculated value, derived using the formula shown in the enable times section. Switching Characteristics over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH (1) tPZL (1) tPZH (1) tPZL (1) 6 (1) FROM (INPUT) TO (OUTPUT) A B B A DIR A DIR B DIR A DIR B VCCB = 1.8 V ±0.15 V VCCB = 2.5 V ±0.2 V VCCB = 3.3 V ±0.3 V VCCB = 5 V ±0.5 V UNIT MIN MAX MIN MAX MIN MAX MIN MAX 2.3 19 1.5 11.5 1.3 9.4 1.1 8.1 2.1 15.9 1.4 10.5 1.3 8.4 0.9 7.6 2.2 13.3 1.5 11.5 1.4 11 1 10.5 2.2 11.5 1.4 10.5 1.3 10 0.9 9.2 3 11.1 3.1 11.1 2.8 11.1 3.2 11.1 1.3 8.9 1.3 8.9 1.3 8.9 1 8.8 6.5 26.7 4.1 14.4 3.9 13.2 2.4 10.1 3.9 21.9 3.2 12.6 2.8 11.4 1.8 8.3 35.2 24.1 22.4 18.8 38.2 24.9 23.2 19.3 27.9 20.4 18.3 16.9 27 21.6 19.5 18.7 ns ns ns ns ns ns The enable time is a calculated value, derived using the formula shown in the enable times section. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Switching Characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A B B A DIR A DIR B DIR A DIR B tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH (1) tPZL (1) tPZH (1) tPZL (1) (1) VCCB = 1.8 V ±0.15 V VCCB = 2.5 V ±0.2 V VCCB = 3.3 V ±0.3 V VCCB = 5 V ±0.5 V UNIT MIN MAX MIN MAX MIN MAX MIN MAX 2.1 18.5 1.4 11 0.7 8.8 0.7 7.4 2 15.6 1.3 10 0.8 8 0.7 7 1.7 11.3 1.3 9.4 0.7 8.8 0.6 8.4 1.8 10.1 1.3 8.4 0.8 8 0.7 7.5 2.9 10.3 3 10.3 2.8 10.3 3.4 10.3 1.8 8.6 1.6 8.6 2.2 8.7 2.2 8.7 5.4 23.5 3.9 13.1 2.9 11.8 2.4 9.8 3.3 17.5 2.9 10.8 2.4 10.1 1.7 7.9 28.8 20.2 18.9 16.3 31.6 21.5 19.8 17.3 27.1 19.6 17.5 16.1 25.9 20.3 18.3 17.3 ns ns ns ns ns ns The enable time is a calculated value, derived using the formula shown in the enable times section. Switching Characteristics over recommended operating free-air temperature range, VCCA = 5 V ±0.5 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A B B A DIR A DIR B DIR A DIR B tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH (1) tPZL (1) tPZH (1) tPZL (1) (1) VCCB = 1.8 V ±0.15 V VCCB = 2.5 V ±0.2 V VCCB = 3.3 V ±0.3 V VCCB = 5 V ±0.5 V UNIT MIN MAX MIN MAX MIN MAX MIN MAX 1.9 18.1 1 10.5 0.6 8.4 0.5 6.9 1.8 15.2 0.9 9.2 0.7 7.5 0.5 6.5 1.4 10.2 1 8.1 0.7 7.4 0.5 6.9 1.7 10 0.9 7.6 0.7 7 0.5 6.5 2.1 8.4 2.2 8.4 2.2 8.5 2.2 8.4 0.9 6.8 1 6.8 1 6.7 0.9 6.7 4.8 23.2 2.5 12.8 1 11.5 2.5 9.5 4.2 17.8 2.5 10.4 2.5 10 1.6 7.5 28 18.5 17.4 14.4 31.2 20.4 18.5 16 24.9 17.3 15.1 13.6 23.6 17.6 16 14.6 ns ns ns ns ns ns The enable time is a calculated value, derived using the formula shown in the enable times section. Operating Characteristics TA = 25°C PARAMETER CpdA (1) CpdB (1) (1) A-port input, B-port output B-port input, A-port output A-port input, B-port output B-port input, A-port output TEST CONDITIONS CL = 0 pF, f = 10 MHz, tr = tf = 1 ns CL = 0 pF, f = 10 MHz, tr = tf = 1 ns VCCA = VCCB = 1.8 V VCCA = VCCB = 2.5 V VCCA = VCCB = 3.3 V VCCA = VCCB = 5 V TYP TYP TYP TYP 3 4 4 4 18 19 20 21 18 19 20 21 3 4 4 4 UNIT pF pF Power dissipation capacitance per transceiver Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1T45-EP 7 SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Power-Up Considerations A proper power-up sequence always should be followed to avoid excessive supply current, bus contention, oscillations, or other anomalies. To guard against such power-up problems, take the following precautions: 1. Connect ground before any supply voltage is applied. 2. Power up VCCA. 3. VCCB can be ramped up along with or after VCCA. Table 1. Typical Total Static Power Consumption (ICCA + ICCB) VCCB 8 VCCA 0V 1.8 V 2.5 V 3.3 V 5V 0V 0