SN74LVC245AIPWREP

SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 FEATURES • • • • • • • • • • • • (1) Controlled Baseline – One Assembly/Test Site, One Fabrication Site Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product-Change Notification Qualification Pedigree (1) Operates From 1.65 V to 3.6 V Inputs Accept Voltages to 5.5 V Max tpd of 6.3 ns at 3.3 V Typical VOLP (Output Ground Bounce) 2 V at VCC = 3.3 V, TA = 25°C Ioff Supports Partial-Power-Down Mode Operation Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC) Latch-Up Performance Exceeds 250 mA Per JESD 17 • ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 1000-V Charged-Device Model (C101) PW PACKAGE (TOP VIEW) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND 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 Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits. DESCRIPTION/ORDERING INFORMATION This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The SN74LVC245A is designed for 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. The output-enable (OE) input can be used to disable the device so the 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. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. ORDERING INFORMATION PACKAGE (1) TA –40°C to 85°C (1) TSSOP – PW Reel of 2000 ORDERABLE PART NUMBER SN74LVC245AIPWREP TOP-SIDE MARKING C245AEP Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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 © 2003–2005, Texas Instruments Incorporated SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 DESCRIPTION/ORDERING INFORMATION (CONTINUED) 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. FUNCTION TABLE INPUTS OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation LOGIC DIAGRAM (POSITIVE LOGIC) DIR 1 19 A1 2 18 To Seven Other Channels 2 OE B1 SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range –0.5 6.5 V VI Input voltage range (2) –0.5 6.5 V –0.5 6.5 V –0.5 VCC + 0.5 state (2) UNIT VO Voltage range applied to any output in the high-impedance or power-off 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 VCC or GND θJA Package thermal Tstg Storage temperature range (1) (2) (3) (4) 83 °C/W 150 °C impedance (4) –65 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 and output negative-voltage ratings may be exceeded if the input and output 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. Recommended Operating Conditions (1) TA = 25°C VCC Supply voltage VIH High-level input voltage Operating Data retention only –40°C to 85°C MIN MAX MIN MAX 1.65 3.6 1.65 3.6 1.5 1.5 0.65 × VCC 0.65 × VCC VCC = 2.3 V to 2.7 V 1.7 1.7 VCC = 2.7 V to 3.6 V 2 VCC = 1.65 V to 1.95 V VCC = 1.65 V to 1.95 V VCC = 2.3 V to 2.7 V UNIT V V 2 0.35 × VCC 0.35 × VCC 0.7 0.7 VIL Low-level input voltage VI Input voltage 0 5.5 0 5.5 V VO Output voltage 0 VCC 0 VCC V VCC = 2.7 V to 3.6 V VCC = 1.65 V IOH High-level output current IOL Low-level output current ∆t/∆v Input transition rise or fall rate (1) 0.8 –4 V 0.8 –4 VCC = 2.3 V –8 –8 VCC = 2.7 V –12 –12 VCC = 3 V –24 –24 VCC = 1.65 V 4 4 VCC = 2.3 V 8 8 VCC = 2.7 V 12 12 VCC = 3 V 24 24 10 10 mA mA ns/V 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. 3 SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –100 µA VOH MIN 1.65 V to 3.6 V –40°C to 85°C TYP MAX MIN MAX VCC – 0.2 VCC – 0.2 IOH = –4 mA 1.65 V 1.29 1.2 IOH = –8 mA 2.3 V 1.9 1.7 2.7 V 2.2 2.2 2.4 IOH = –12 mA VOL TA = 25°C VCC UNIT V 3V 2.4 IOH = –24 mA 3V 2.3 IOL = 100 µA 1.65 V to 3.6 V 0.1 0.2 IOL = 4 mA 1.65 V 0.24 0.45 IOL = 8 mA 2.3 V 0.3 0.7 IOL = 12 mA 2.7 V 0.4 0.4 IOL = 24 mA 3V 0.55 0.55 2.2 V 3.6 V ±1 ±5 µA Ioff VI or VO = 5.5 V 0 ±1 ±10 µA IOZ (1) VO = 0 to 5.5 V 3.6 V ±1 ±10 µA 1 10 1 10 500 500 II Control inputs VI = 0 to 5.5 V VI = VCC or GND ICC IO = 0 3.6 V ≤ VI ≤ 5.5 V (2) One input at VCC – 0.6 V, Other inputs at VCC or GND ∆ICC 3.6 V 2.7 V to 3.6 V µA µA Ci Control inputs VI = VCC or GND 3.3 V 4 pF Cio A or B port VI = VCC or GND 3.3 V 5.5 pF (1) (2) For I/O ports, the parameter IOZ includes the input leakage current. This applies in the disabled state only. Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) PARAMETER tpd ten tdis FROM (INPUT) A or B OE OE TO (OUTPUT) B or A A or B A or B VCC 4 MIN –40°C to 85°C TYP MAX MIN MAX 1.8 V ± 0.15 V 1 6 12.2 1 12.7 2.5 V ± 0.2 V 1 3.9 7.8 1 8.3 2.7 V 1 4.2 7.1 1 7.3 3.3 V ± 0.3 V 1.5 3.8 6.1 1.5 6.3 1.8 V ± 0.15 V 1 7 14.8 1 15.3 2.5 V ± 0.2 V 1 4.5 10 1 10.5 2.7 V 1 5.4 9.3 1 9.5 3.3 V ± 0.3 V 1.5 4.4 8.3 1.5 8.5 1.8 V ± 0.15 V 1 7.8 16.5 1 17 2.5 V ± 0.2 V 1 4 9 1 9.5 2.7 V 1 4.4 8.3 1 8.5 1.7 4.1 7.3 1.7 7.5 3.3 V ± 0.3 V tsk(o) TA = 25°C 3.3 V ± 0.3 V 1 UNIT ns ns ns ns SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 Operating Characteristics TA = 25°C TEST CONDITIONS PARAMETER Outputs enabled Cpd Power dissipation capacitance per transceiver f = 10 MHz Outputs disabled VCC TYP 1.8 V 42 2.5 V 43 3.3 V 45 1.8 V 1 2.5 V 1 3.3 V 2 UNIT pF 5 SN74LVC245A-EP OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCAS741B – DECEMBER 2003 – REVISED AUGUST 2005 PARAMETER MEASUREMENT INFORMATION VLOAD S1 RL From Output Under Test CL (see Note A) Open GND RL TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open VLOAD GND LOAD CIRCUIT INPUTS VCC 1.8 V ± 0.15 V 2.5 V ± 0.2 V 2.7 V 3.3 V ± 0.3 V VI tr/tf VCC VCC 2.7 V 2.7 V ≤2 ns ≤2 ns ≤2.5 ns ≤2.5 ns VM VLOAD CL RL V∆ VCC/2 VCC/2 1.5 V 1.5 V 2 × VCC 2 × VCC 6V 6V 30 pF 30 pF 50 pF 50 pF 1 kΩ 500 Ω 500 Ω 500 Ω 0.15 V 0.15 V 0.3 V 0.3 V VI Timing Input VM 0V tw tsu VI Input VM VM th VI Data Input VM VM 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VI VM Input VM 0V tPLH VOH Output VM VOL tPHL VM VM 0V Output Waveform 1 S1 at VLOAD (see Note B) tPLH tPLZ VLOAD/2 VM tPZH VOH Output VM tPZL tPHL VM VI Output Control VM VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS Output Waveform 2 S1 at GND (see Note B) VOL + V∆ VOL tPHZ VM VOH - V∆ VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING 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. 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 6 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) SN74LVC245AIPWREP ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 C245AEP V62/04737-01XE ACTIVE TSSOP PW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 C245AEP (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