SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com SCAS304J - MARCH 1993 - REVISED FEBRUARY 2005 FEATURES * * * * * * * * * DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) Operates From 1.65 V to 3.6 V Inputs Accept Voltages to 5.5 V Max tpd of 7.3 ns at 3.3 V Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25C Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25C Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC) Ioff Supports Partial-Power-Down Mode Operation Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 - 2000-V Human-Body Model (A114-A) OE 1D 2D 3D 4D 5D 6D 7D 8D 9D 10D GND 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 9Q 10Q CLK DESCRIPTION/ORDERING INFORMATION This 10-bit bus-interface flip-flop is designed for 1.65-V to 3.6-V VCC operation. The SN74LVC821A features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers. The ten flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs. A buffered output-enable (OE) input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. OE does not affect the internal operations of the latch. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state. ORDERING INFORMATION PACKAGE (1) TA Reel of 2000 SN74LVC821ADWR SOP - NS Reel of 2000 SN74LVC821ANSR LVC821A SSOP - DB Reel of 2000 SN74LVC821ADBR LC821A Tube of 60 SN74LVC821APW Reel of 2000 SN74LVC821APWR Reel of 250 SN74LVC821APWT Reel of 2000 SN74LVC821ADGVR TSSOP - PW TVSOP - DGV (1) TOP-SIDE MARKING SN74LVC821ADW SOIC - DW -40C to 85C ORDERABLE PART NUMBER Tube of 25 LVC821A LC821A LC821A 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 (c) 1993-2005, Texas Instruments Incorporated SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com SCAS304J - MARCH 1993 - REVISED FEBRUARY 2005 DESCRIPTION/ORDERING INFORMATION (CONTINUED) 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. 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. 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. FUNCTION TABLE (EACH FLIP-FLOP) INPUTS OE CLK D OUTPUT Q L H H L L L L H or L X Q0 H X X Z LOGIC DIAGRAM (POSITIVE LOGIC) OE CLK 1 13 C1 1D 2 1D To Nine Other Channels 2 23 1Q SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com Absolute Maximum Ratings SCAS304J - MARCH 1993 - REVISED FEBRUARY 2005 (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 JA Package thermal impedance (4) DB package 63 DGV package 86 DW package 46 NS package 65 PW package Tstg (1) (2) (3) (4) Storage temperature range V C/W 88 -65 C 150 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 negative-voltage and output 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) VCC Supply voltage VIH High-level input voltage Operating Data retention only VCC = 1.65 V to 1.95 V MIN MAX 1.65 3.6 1.5 Low-level input voltage VI 1.7 VCC = 2.7 V to 3.6 V 2 VO Output voltage 0.35 x VCC 0.7 VCC = 2.7 V to 3.6 V 0.8 0 5.5 High or low state 0 VCC 3-state 0 5.5 VCC = 1.65 V IOH High-level output current Low-level output current t/v Input transition rise or fall rate TA Operating free-air temperature (1) V V V -4 VCC = 2.3 V -8 VCC = 2.7 V -12 VCC = 3 V -24 VCC = 1.65 V IOL V VCC = 2.3 V to 2.7 V Input voltage V 0.65 x VCC VCC = 2.3 V to 2.7 V VCC = 1.65 V to 1.95 V VIL UNIT mA 4 VCC = 2.3 V 8 VCC = 2.7 V 12 VCC = 3 V 24 -40 mA 10 ns/V 85 C 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 SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com SCAS304J - MARCH 1993 - REVISED FEBRUARY 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = -100 A VOH IOH = -4 mA 1.65 V 1.2 IOH = -8 mA 2.3 V 1.7 2.7 V 2.2 3V 2.4 IOH = -24 mA 3V 2.2 IOL = 100 A 1.65 V to 3.6 V 0.2 IOL = 4 mA 1.65 V 0.45 IOL = 8 mA 2.3 V 0.7 IOL = 12 mA 2.7 V 0.4 3V 0.55 IOL = 24 mA VI or VO = 5.5 V 0 10 A VO = 0 to 5.5 V 3.6 V 10 A IOZ VI = VCC or GND 3.6 V VI 5.5 V (2) Ci Co (1) (2) One input at VCC - 0.6 V, Data inputs V A Ioff Control inputs V 5 VI = 0 to 5.5 V ICC UNIT 3.6 V II ICC MAX 1.65 V to 3.6 V VCC - 0.2 IOH = -12 mA VOL MIN TYP (1) VCC IO = 0 10 3.6 V Other inputs at VCC or GND 10 2.7 V to 3.6 V VI = VCC or GND 3.3 V VO = VCC or GND 3.3 V 500 5 A A pF 4 7 pF All typical values are at VCC = 3.3 V, TA = 25C. This applies in the disabled state only. Timing Requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) VCC = 1.8 V 0.15 V MIN MAX VCC = 2.5 V 0.2 V MIN (1) MAX VCC = 2.7 V MIN (1) MAX VCC = 3.3 V 0.3 V MIN fclock Clock frequency tw Pulse duration, CLK high or low (1) (1) 3.3 3.3 ns tsu Setup time, data before CLK (1) (1) 1.9 1.9 ns th Hold time, data after CLK (1) (1) 1.5 1.5 ns (1) 4 This information was not available at the time of publication. 150 UNIT MAX 150 MHz SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com SCAS304J - MARCH 1993 - REVISED FEBRUARY 2005 Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 1.8 V 0.15 V MIN VCC = 2.5 V 0.2 V MAX MIN MAX MIN MAX VCC = 3.3 V 0.3 V MIN (1) tpd CLK Q (1) (1) (1) (1) 8.5 2.2 7.3 ns ten OE Q (1) (1) (1) (1) 8.8 1.3 7.6 ns Q (1) (1) (1) (1) 6.8 1.6 6.2 ns 1 ns OE 150 150 MHz tsk(o) (1) UNIT MAX fmax tdis (1) VCC = 2.7 V This information was not available at the time of publication. Operating Characteristics TA = 25C TEST CONDITIONS PARAMETER Cpd (1) Power dissipation capacitance per flip-flop Outputs enabled Outputs disabled f = 10 MHz VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V TYP TYP TYP (1) (1) 65 (1) (1) 48 UNIT pF This information was not available at the time of publication. 5 SN74LVC821A 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS www.ti.com SCAS304J - MARCH 1993 - REVISED FEBRUARY 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 x VCC 2 x VCC 6V 6V 30 pF 30 pF 50 pF 50 pF 1 k 500 500 500 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 VM 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 VOH Output 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 . 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 28-Aug-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty SN74LVC821ADBLE OBSOLETE SSOP DB 24 SN74LVC821ADBR ACTIVE SSOP DB 24 2000 SN74LVC821ADBRE4 ACTIVE SSOP DB 24 SN74LVC821ADBRG4 ACTIVE SSOP DB SN74LVC821ADGVR ACTIVE TVSOP SN74LVC821ADGVRE4 ACTIVE SN74LVC821ADGVRG4 Eco Plan (2) TBD Lead/ Ball Finish (3) Samples (Requires Login) Call TI Samples Not Available Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office DGV 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TVSOP DGV 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office ACTIVE TVSOP DGV 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821ADW ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821ADWE4 ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821ADWG4 ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821ADWR ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821ADWRE4 ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821ADWRG4 ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821APW ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821APWE4 ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821APWG4 ACTIVE TSSOP PW 24 60 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821APWLE OBSOLETE TSSOP PW 24 SN74LVC821APWR ACTIVE TSSOP PW 24 TBD 2000 Green (RoHS & no Sb/Br) Addendum-Page 1 Call TI MSL Peak Temp Call TI Call TI Samples Not Available CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 28-Aug-2010 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) SN74LVC821APWRE4 ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821APWRG4 ACTIVE TSSOP PW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office SN74LVC821APWT ACTIVE TSSOP PW 24 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821APWTE4 ACTIVE TSSOP PW 24 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples SN74LVC821APWTG4 ACTIVE TSSOP PW 24 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8.8 2.5 12.0 16.0 Q1 SN74LVC821ADBR SSOP DB 24 2000 330.0 16.4 SN74LVC821ADGVR TVSOP DGV 24 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVC821ADWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 Q1 SN74LVC821APWR TSSOP PW 24 2000 330.0 16.4 6.95 8.3 1.6 8.0 16.0 Q1 SN74LVC821APWT TSSOP PW 24 250 330.0 16.4 6.95 8.3 1.6 8.0 16.0 Q1 Pack Materials-Page 1 8.2 B0 (mm) PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVC821ADBR SSOP DB 24 2000 367.0 367.0 38.0 SN74LVC821ADGVR TVSOP DGV 24 2000 367.0 367.0 35.0 SN74LVC821ADWR SOIC DW 24 2000 367.0 367.0 45.0 SN74LVC821APWR TSSOP PW 24 2000 367.0 367.0 38.0 SN74LVC821APWT TSSOP PW 24 250 367.0 367.0 38.0 Pack Materials-Page 2 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 MECHANICAL DATA MSSO002E - JANUARY 1995 - REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0-8 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 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. 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