SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 D Operates From 1.65 V to 3.6 V D Max tpd of 3.4 ns at 3.3 V D ±24-mA Output Drive at 3.3 V D Latch-Up Performance Exceeds 250 mA Per JESD 17 DGV, DW, NS, OR PW PACKAGE (TOP VIEW) 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 A1 A2 A3 A4 A5 A6 A7 A8 VCC 19 1 20 19 OE 18 B1 2 3 17 B2 16 B3 4 5 15 B4 14 B5 6 7 13 B6 12 B7 8 9 10 11 B8 20 2 DIR 1 GND DIR A1 A2 A3 A4 A5 A6 A7 A8 GND RGY PACKAGE (TOP VIEW) description/ordering information This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVC245 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. ORDERING INFORMATION QFN − RGY SOIC − DW −40°C −40 C to 85 85°C C ORDERABLE PART NUMBER PACKAGE† TA SOP − NS TSSOP − PW TVSOP − DGV Tape and reel SN74ALVC245RGYR Tube SN74ALVC245DW Tape and reel SN74ALVC245DWR Tape and reel SN74ALVC245NSR Tube SN74ALVC245PW Tape and reel SN74ALVC245PWR Tape and reel SN74ALVC245DGVR TOP-SIDE MARKING VA245 ALVC245 ALVC245 VA245 VA245 † 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. Copyright 2003, Texas Instruments Incorporated ! "#$ ! %#&'" ($) (#"! " !%$""! %$ *$ $! $+! !#$! !(( ,-) (#" %"$!!. ($! $"$!!'- "'#($ $!. '' %$$!) POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 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 OE 2 18 B1 To Seven Other Channels absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Input voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V I/O ports (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Continuous output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Package thermal impedance, θJA (see Note 3): DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W (see Note 3): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W (see Note 3): NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W (see Note 3): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W (see Note 4): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37°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 negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. This value is limited to 4.6 V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51-7. 4. The package thermal impedance is calculated in accordance with JESD 51-5. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 recommended operating conditions (see Note 5) VCC VIH Supply voltage VCC = 1.65 V to 1.95 V VCC = 2.3 V to 2.7 V High-level input voltage VCC = 2.7 V to 3.6 V VCC = 1.65 V to 1.95 V VIL VI VO IOH IOL ∆t/∆v MIN MAX 1.65 3.6 Input voltage 1.7 0.35 × VCC 0.7 High-level output current VCC = 2.7 V VCC = 3 V VCC = 1.65 V VCC = 2.3 V Low-level output current VCC = 2.7 V VCC = 3 V Input transition rise or fall rate V 0.8 0 VCC = 1.65 V VCC = 2.3 V V 2 0 Output voltage V 0.65 × VCC VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V Low-level input voltage UNIT VCC VCC V V −4 −12 −12 mA −24 4 12 12 mA 24 10 ns/V TA Operating free-air temperature −40 85 °C NOTE 5: 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 3 SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = −100 µA IOH = −4 mA MIN 1.65 V to 3.6 V VCC−0.2 1.2 1.65 V IOH = −6 mA VOH IOH = −12 mA IOH = −24 mA IOL = 100 µA ICC ∆ICC One input at VCC − 0.6 V, Ci Control inputs Cio A or B ports 1.7 2.7 V 2.2 3V 2.4 3V 2 0.45 2.3 V 0.4 2.3 V 0.7 IO = 0 Other inputs at VCC or GND 2.7 V 0.4 3V 0.55 V 3.6 V ±5 µA 3.6 V ±10 µA 3.6 V 10 µA 750 µA 3 V to 3.6 V VI = VCC or GND VO = VCC or GND UNIT V 1.65 V IOL = 24 mA VI = VCC or GND VO = VCC or GND VI = VCC or GND, 2 2.3 V 0.2 IOL = 12 mA II IOZ‡ 2.3 V MAX 1.65 V to 3.6 V IOL = 4 mA IOL = 6 mA VOL TYP† VCC 3.3 V 4.5 pF 3.3 V 11.5 pF † All typical values are at VCC = 3.3 V, TA = 25°C. ‡ For I/O ports, the parameter IOZ includes the input leakage current. switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) FROM (INPUT) TO (OUTPUT) tpd A or B ten tdis PARAMETER VCC = 1.8 V ± 0.15 V VCC = 2.5 V ± 0.2 V MIN MAX MIN MAX B or A 1.5 6 1 OE A or B 3.4 8.6 OE A or B 2.7 8 VCC = 2.7 V MIN VCC = 3.3 V ± 0.3 V UNIT MAX MIN MAX 3.5 3.6 1.3 3.4 ns 2 6 6.3 1.6 5.5 ns 1 4.8 5.3 1.7 5.5 ns operating characteristics, TA = 25°C PARAMETER Cpd 4 Power dissipation capacitance per transceiver TEST CONDITIONS VCC = 1.8 V TYP Outputs enabled Outputs disabled CL = 0, POST OFFICE BOX 655303 f = 10 MHz • DALLAS, TEXAS 75265 VCC = 2.5 V TYP VCC = 3.3 V TYP 25 27 30 0 0 0 UNIT pF SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION RL From Output Under Test VLOAD Open S1 GND CL (see Note A) RL TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open VLOAD GND LOAD CIRCUIT INPUT VCC 1.8 V ± 0.15 V 2.5 ± 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 tw VI Timing Input VM VM VM 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VM VM 0V tPLH Output Control (low-level enabling) VM 0V Output Waveform 1 S1 at VLOAD (see Note B) tPLZ VLOAD/2 VM tPZH tPHL VOH VM VI VM tPZL VI Input VOLTAGE WAVEFORMS PULSE DURATION th VI Data Input VM 0V 0V tsu Output VI VM Input VM VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES Output Waveform 2 S1 at GND (see Note B) VOL + V∆ VOL tPHZ VOH VM VOH − V∆ 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. 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 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°–8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 MECHANICAL DATA MSOI003E – JANUARY 1995 – REVISED SEPTEMBER 2001 DW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 16 PINS SHOWN 0.020 (0,51) 0.014 (0,35) 9 0.050 (1,27) 16 0.010 (0,25) 0.419 (10,65) 0.400 (10,15) 0.010 (0,25) NOM 0.299 (7,59) 0.291 (7,39) Gage Plane 0.010 (0,25) 1 8 0°– 8° 0.050 (1,27) 0.016 (0,40) A Seating Plane 0.104 (2,65) MAX 0.012 (0,30) 0.004 (0,10) PINS ** 0.004 (0,10) 16 18 20 24 28 A MAX 0.410 (10,41) 0.462 (11,73) 0.510 (12,95) 0.610 (15,49) 0.710 (18,03) A MIN 0.400 (10,16) 0.453 (11,51) 0.500 (12,70) 0.600 (15,24) 0.700 (17,78) DIM 4040000/E 08/01 NOTES: A. B. C. D. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15). Falls within JEDEC MS-013 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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