SN74AVC20T245GQLR

     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 D Control Inputs VIH/VIL Levels are D D D D D D D D DGG OR DGV PACKAGE (TOP VIEW) Referenced to VCCA Voltage VCC Isolation Feature − If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range Ioff Supports Partial-Power-Down Mode Operation I/Os Are 4.6-V Tolerant Max Data Rates − 380 Mbps (1.8-V to 3.3-V Translation) − 260 Mbps (< 1.8-V to 3.3-V Translation) − 260 Mbps (Translate to 2.5 V) − 210 Mbps (Translate to 1.8 V) − 120 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) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) 1DIR 1B1 1B2 GND 1B3 1B4 VCCB 1B5 1B6 1B7 GND 1B8 1B9 1B10 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCCB 2B7 2B8 GND 2B9 2B10 2DIR description/ordering information This 20-bit noninverting bus transceiver uses two separate configurable power-supply rails. 1 56 2 55 3 54 4 53 5 52 6 51 7 50 8 49 9 48 10 47 11 46 12 45 13 44 14 43 15 42 16 41 17 40 18 39 19 38 20 37 21 36 22 35 23 34 24 33 25 32 26 31 27 30 28 29 1OE 1A1 1A2 GND 1A3 1A4 VCCA 1A5 1A6 1A7 GND 1A8 1A9 1A10 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCCA 2A7 2A8 GND 2A9 2A10 2OE The SN74AVC20T245 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. 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. ORDERING INFORMATION −40°C to 85°C ORDERABLE PART NUMBER PACKAGE† TA TOP-SIDE MARKING TSSOP − DGG Tape and reel SN74AVC20T245DGGR AVC20T245 TVSOP − DGV Tape and reel SN74AVC20T245DGVR WG245 VFBGA − GQL SN74AVC20T245GQLR VFBGA − ZQL (Pb-free) Tape and reel SN74AVC20T245ZQLR WG245 † 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  2005, Texas Instruments Incorporated     !"#$ % &'!!($ #%  )'*+&#$ ,#$(!,'&$% &!" $ %)(&&#$% )(! $.( $(!"%  (/#% %$!'"($% %$#,#!, 0#!!#$1- !,'&$ )!&(%%2 ,(% $ (&(%%#!+1 &+',( $(%$2  #++ )#!#"($(!%- POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 description/ordering information (continued) The SN74AVC20T245 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 is used to disable the outputs so that the buses are isolated. The SN74AVC20T245 is designed so that the control (1DIR, 2DIR, 1OE, and 2OE) inputs are supplied 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, both ports are in the high-impedance state. 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. GQL OR ZQL PACKAGE (TOP VIEW) 1 2 3 4 5 6 terminal assignments 1 2 3 4 5 6 A A 1B1 1B2 1DIR 1OE 1A2 1A1 B B 1B3 1B4 GND GND 1A4 1A3 C 1B5 1B6 1A5 1B7 1B8 VCCA GND 1A6 D VCCB GND 1A8 1A7 E 1B9 1B10 1A10 1A9 F 2B1 2B2 2A2 2A1 G 2B3 2B4 GND GND 2A4 2A3 C D E F G H 2B5 2B6 2B7 2B8 VCCA GND 2A5 J VCCB GND 2A6 H 2A8 2A7 J K 2B9 2B10 2DIR 2OE 2A10 2A9 K FUNCTION TABLE (each 10-bit section) INPUTS 2 OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 logic diagram (positive logic) 1DIR 1 2DIR 56 1A1 29 1OE 55 2A1 2 28 2OE 42 15 1B1 2B1 To Nine Other Channels To Nine Other Channels Pin numbers shown are for the DGG and DGV packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCCA and VCCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Input voltage range, VI (see Note 1): I/O ports (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V I/O ports (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Voltage range applied to any output in the high-impedance or power-off state, VO (see Note 1): (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Voltage range applied to any output in the high or low state, VO (see Notes 1 and 2): (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCCA + 0.5 V (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCCB + 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 each VCCA, VCCB, and GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Package thermal impedance, θJA (see Note 3): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48°C/W GQL/ZQL package . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°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 voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. 2. The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed. 3. The package thermal impedance is calculated in accordance with JESD 51-7. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 recommended operating conditions (see Notes 4 through 8) VCCI VCCA VCCB VCCO MIN MAX Supply voltage 1.2 3.6 V Supply voltage 1.2 3.6 V VCCI × 0.65 1.6 1.2 V to 1.95 V VIH High-level input voltage Data inputs (see Note 7) 1.95 V to 2.7 V 2.7 V to 3.6 V VIL Data inputs (see Note 7) VCCI × 0.35 0.7 1.95 V to 2.7 V 2.7 V to 3.6 V VIH VIL VI VO IOH IOL ∆t/∆v DIR (referenced to VCCA) (see Note 8) High-level input voltage DIR (referenced to VCCA) (see Note 8) Low-level input voltage V 0.8 VCCA × 0.65 1.6 1.2 V to 1.95 V 1.95 V to 2.7 V 2.7 V to 3.6 V V 2 VCCA × 0.35 0.7 1.2 V to 1.95 V 1.95 V to 2.7 V 2.7 V to 3.6 V V 0.8 Input voltage Output voltage V 2 1.2 V to 1.95 V Low-level input voltage UNIT 0 3.6 V Active state 0 3-state 0 VCCO 3.6 V High-level output current Low-level output current 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 Input transition rise or fall rate 5 mA mA ns/V TA Operating free-air temperature −40 85 °C NOTES: 4. VCCI is the VCC associated with the data input port. 5. VCCO is the VCC associated with the output port. 6. 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. 7. For VCCI values not specified in the data sheet, VIH(min) = VCCI x 0.7 V, VIL(max) = VCCI x 0.3 V. 8. For VCCI values not specified in the data sheet, VIH(min) = VCCA x 0.7 V, VIL(max) = VCCA x 0.3 V. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Notes 9 and 10) PARAMETER TEST CONDITIONS 1.2 V to 3.6 V 1.2 V to 3.6 V 1.2 V 1.2 V 1.4 V 1.4 V 1.05 1.65 V 1.65 V 1.2 IOH = −9 mA IOH = −12 mA 2.3 V 2.3 V 1.75 3V 3V 2.3 IOL = 100 µA IOL = 3 mA 1.2 V to 3.6 V 1.2 V to 3.6 V 1.2 V 1.2 V IOH = −6 mA IOH = −8 mA IOL = 6 mA IOL = 8 mA VOL VI = VIH VI = VIL IOL = 9 mA IOL = 12 mA II Control inputs VI = VCCA or GND A or B port Ioff IOZ† A or B port A or B ports ICCA Cio VO = VCCO or GND, VI = VCCI or GND A or B ports MIN MAX UNIT VCCO − 0.2 V 0.95 V 0.2 0.15 1.4 V 1.4 V 0.35 1.65 V 1.65 V 0.45 2.3 V 2.3 V 0.55 3V 3V 0.7 1.2 V to 3.6 V 1.2 V to 3.6 V 0V ±0.025 ±0.25 ±1 0 to 3.6 V ±0.1 ±1 ±5 0 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 35 V µA A µA OE = VIH µA µA 0V 3.6 V −5 3.6 V 0V 35 1.2 V to 3.6 V 1.2 V to 3.6 V 35 0V 3.6 V 35 3.6 V 0V −5 1.2 V to 3.6 V 1.2 V to 3.6 V 65 VI = 3.3 V or GND 3.3 V 3.3 V 3.5 pF VO = 3.3 V or GND 3.3 V 3.3 V 7 pF VI = VCCI or GND, ICCA ) ICCB Control Ci inputs MIN VI or VO = 0 to 3.6 V VI = VCCI or GND, ICCB −40°C to 85°C VCCB IOH = −100 µA IOH = −3 mA VOH TA = 25°C TYP MAX VCCA VI = VCCI or GND, IO = 0 IO = 0 IO = 0 µA µA † For I/O ports, the parameter IOZ includes the input leakage current. NOTES: 9. VCCO is the VCC associated with the output port. 10. VCCI is the VCC associated with the input port. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 switching characteristics over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPZH tPZL OE B tPHZ tPLZ OE A tPHZ tPLZ OE B VCCB = 1.2 V TYP VCCB = 1.5 V TYP VCCB = 1.8 V TYP VCCB = 2.5 V TYP VCCB = 3.3 V TYP 3.8 3.1 2.8 2.7 3.3 3.8 3.1 2.8 2.7 3.3 4.1 3.8 3.6 3.5 3.4 4.1 3.8 3.6 3.5 3.4 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 5.6 4.4 3.8 3.3 3.2 5.6 4.4 3.8 3.3 3.2 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 5.7 4.6 4.7 4.1 5.4 5.7 4.6 4.7 4.1 5.4 UNIT ns ns ns ns ns ns switching characteristics over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 1) FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPZH tPZL OE B tPHZ tPLZ OE A tPHZ tPLZ OE B PARAMETER 6 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 3.8 0.5 6.4 0.5 5.4 0.5 4.3 0.5 3.9 3.8 0.5 6.4 0.5 5.4 0.5 4.3 0.5 3.9 3.1 0.5 6.4 0.5 6.1 0.5 5.8 0.5 5.7 3.1 0.5 6.4 0.5 6.1 0.5 5.8 0.5 5.7 4.3 1.5 10.3 1.5 10.3 1.5 10.2 1.5 10.2 4.3 1.5 10.3 1.5 10.3 1.5 10.2 1.5 10.2 5.2 1 10.3 1 8.4 0.5 6.1 0.5 5.3 5.2 1 10.3 1 8.4 0.5 6.1 0.5 5.3 4.5 2 9 2 9 2 9 2 9 4.5 2 9 2 9 2 9 2 9 5.1 1.5 9 1.5 7.8 1 6.4 1 5.9 5.1 1.5 9 1.5 7.8 1 6.4 1 5.9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT ns ns ns ns ns ns 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 switching characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1) FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPZH tPZL OE B tPHZ tPLZ OE A tPHZ tPLZ OE B PARAMETER 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 3.6 0.5 6.1 0.5 5 0.5 3.9 0.5 3.5 3.6 0.5 6.1 0.5 5 0.5 3.9 0.5 3.5 2.8 0.5 5.4 0.5 5 0.5 4.7 0.5 4.6 2.8 0.5 5.4 0.5 5 0.5 4.7 0.5 4.6 3.4 1 8.1 1 7.9 1 7.9 1 7.9 3.4 1 8.1 1 7.9 1 7.9 1 7.9 5 0.5 10 0.5 7.9 0.5 5.7 0.5 4.8 5 0.5 10 0.5 7.9 0.5 5.7 0.5 4.8 4.1 2 7.4 2 7.4 2 7.4 2 7.4 4.1 2 7.4 2 7.4 2 7.4 2 7.4 4.9 1.5 8.7 1.5 7.4 1 5.8 1 5.1 4.9 1.5 8.7 1.5 7.4 1 5.8 1 5.1 UNIT ns ns ns ns ns ns switching characteristics over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 1) FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPZH tPZL OE B tPHZ tPLZ OE A tPHZ tPLZ OE B PARAMETER 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 3.5 0.5 5.8 0.5 4.7 0.5 3.5 0.5 3 3.5 0.5 5.8 0.5 4.7 0.5 3.5 0.5 3 2.7 0.5 4.3 0.5 3.9 0.5 3.5 0.5 3.4 2.7 0.5 4.3 0.5 3.9 0.5 3.5 0.5 3.4 2.5 0.5 5.4 0.5 5.3 0.5 5.2 0.5 5.2 2.5 0.5 5.4 0.5 5.3 0.5 5.2 0.5 5.2 4.8 0.5 9.6 0.5 7.6 0.5 5.3 0.5 4.3 4.8 0.5 9.6 0.5 7.6 0.5 5.3 0.5 4.3 3 1.1 5.2 1.1 5.2 1.1 5.2 1.1 5.2 3 1.1 5.2 1.1 5.2 1.1 5.2 1.1 5.2 4.7 1.2 8.2 1.2 6.9 1 5.3 1 5 4.7 1.2 8.2 1.2 6.9 1 5.3 1 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT ns ns ns ns ns ns 7 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 switching characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1) FROM (INPUT) TO (OUTPUT) tPLH tPHL A B tPLH tPHL B A tPZH tPZL OE A tPZH tPZL OE B tPHZ tPLZ OE A tPHZ tPLZ OE B PARAMETER 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 3.4 0.5 5.7 0.5 4.6 0.5 3.4 0.5 2.9 3.4 0.5 5.7 0.5 4.6 0.5 3.4 0.5 2.9 3.3 0.5 3.9 0.5 3.5 0.5 3 0.5 2.9 3.3 0.5 3.9 0.5 3.5 0.5 3 0.5 2.9 2.2 0.5 4.4 0.5 4.3 0.5 4.2 0.5 4.1 2.2 0.5 4.4 0.5 4.3 0.5 4.2 0.5 4.1 4.7 1 9.6 0.5 7.5 0.5 5.1 0.5 4.1 4.7 1 9.6 0.5 7.5 0.5 5.1 0.5 4.1 3.4 0.8 5 0.8 5 0.8 5 0.8 5 3.4 0.8 5 0.8 5 0.8 5 0.8 5 4.6 1.2 8.1 1.2 6.7 1 5.1 0.8 5 4.6 1.2 8.1 1.2 6.7 1 5.1 0.8 5 UNIT ns ns ns ns ns ns 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 2 1 1 1 1 1 12 13 14 15 16 Outputs Disabled 1 1 1 1 1 Outputs Enabled 13 13 14 15 16 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 PARAMETER TEST CONDITIONS Outputs Enabled A to B CpdA† Outputs Disabled Outputs Enabled B to A A to B CpdB† Outputs Disabled Outputs Enabled B to A CL = 0, f = 10 MHz, tr = tf =1 ns CL = 0, f = 10 MHz, tr = tf =1 ns Outputs Disabled pF pF † Power-dissipation capacitance per transceiver 8 UNIT POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 
     
 

       
   
   
SCES566F − MAY 2004 − REVISED APRIL 2005 typical total static power consumption (ICCA + ICCB) TABLE 1 VCCB VCCA 0V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V 0V 0 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 1.2 V < 0.5