SN54LVC574A

ACTIVE

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

Top

Product details

Parameters

Technology Family LVC Input type Standard CMOS Output type 3-State VCC (Min) (V) 2 VCC (Max) (V) 3.6 Channels (#) 8 Clock Frequency (Max) (MHz) 100 ICC (uA) 10 IOL (Max) (mA) 24 IOH (Max) (mA) -24 Features Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs, Partial power down (Ioff) Rating Military open-in-new Find other D-type flip-flop

Package | Pins | Size

CDIP (J) 20 CFP (W) 20 open-in-new Find other D-type flip-flop

Features

  • Operate From 1.65 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Specified From -40°C to 85°C, -40°C to 125°C, and -55°C to 125°C
  • Max tpd of 7 ns at 3.3 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
       >2 V at VCC = 3.3 V, TA = 25°C
  • Support 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)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

open-in-new Find other D-type flip-flop

Description

The SN54LVC574A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVC574A octal edge-triggered D-type flip-flop is designed for 1.65-V to 3.6-V VCC operation.

These devices feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels at the data (D) inputs.

A buffered output-enable (OE)\ input can be used to place the eight 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 flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

These devices are 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.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

open-in-new Find other D-type flip-flop
Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 31
Type Title Date
* Datasheet SN54LVC574A, SN74LVC574A datasheet (Rev. R) Mar. 14, 2005
Selection guides Little Logic Guide 2018 (Rev. G) Jul. 06, 2018
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes How to Select Little Logic (Rev. A) Jul. 26, 2016
Application notes Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
SMD SN54LVC574A SMD 5962-97576 Jun. 21, 2016
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application notes Power-Up Behavior of Clocked Devices (Rev. A) Feb. 06, 2015
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
More literature Design Summary for WCSP Little Logic (Rev. B) Nov. 04, 2004
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application notes Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
User guides Signal Switch Data Book (Rev. A) Nov. 14, 2003
Application notes Use of the CMOS Unbuffered Inverter in Oscillator Circuits Nov. 06, 2003
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
User guides LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) Dec. 18, 2002
Application notes Texas Instruments Little Logic Application Report Nov. 01, 2002
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards Jun. 13, 2002
Application notes 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) May 22, 2002
Application notes Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices May 10, 2002
More literature STANDARD LINEAR AND LOGIC FOR DVD/VCD PLAYERS Mar. 27, 2002
More literature Military Low Voltage Solutions Apr. 04, 2001
Application notes Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices Dec. 01, 1997
Application notes Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) Aug. 01, 1997
Application notes CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application notes LVC Characterization Information Dec. 01, 1996
Application notes Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application notes Live Insertion Oct. 01, 1996
User guides Low-Voltage Logic (LVC) Designer's Guide Sep. 01, 1996
Application notes Understanding Advanced Bus-Interface Products Design Guide May 01, 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

CAD/CAE symbols

Package Pins Download
CDIP (J) 20 View options
CFP (W) 20 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos