SN74LVC821ADBRG4

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) 2 V at VCC = 3.3 V, TA = 25°C 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 –40°C to 85°C 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 © 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 θJA 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 × 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 × 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 µA 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 µA 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 µA VO = 0 to 5.5 V 3.6 V ±10 µA 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 µA 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 µA µA pF 4 7 pF All typical values are at VCC = 3.3 V, TA = 25°C. 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 = 25°C 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 × 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 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 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 14-Oct-2022 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) Samples (4/5) (6) SN74LVC821ADBR ACTIVE SSOP DB 24 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LC821A Samples SN74LVC821ADGVR ACTIVE TVSOP DGV 24 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LC821A Samples SN74LVC821ADW ACTIVE SOIC DW 24 25 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LVC821A Samples SN74LVC821ADWR ACTIVE SOIC DW 24 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LVC821A Samples SN74LVC821APW ACTIVE TSSOP PW 24 60 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LC821A Samples SN74LVC821APWR ACTIVE TSSOP PW 24 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LC821A Samples SN74LVC821APWT ACTIVE TSSOP PW 24 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 LC821A 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) 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