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Partno Mfg Dc Qty AvailableDescript
SN74ACT574DBRTIN/a2avaiOctal D-Type Edge-Triggered Flip-Flops with 3-State Outputs
SN74ACT574DWTIN/a1528avaiOctal D-Type Edge-Triggered Flip-Flops with 3-State Outputs
SN74ACT574DWRG4TIN/a968avaiOctal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-SOIC -40 to 85
SN74ACT574PWTIN/a25avaiOctal D-Type Edge-Triggered Flip-Flops with 3-State Outputs
SN74ACT574PWRTIN/a86avaiOctal D-Type Edge-Triggered Flip-Flops with 3-State Outputs


SN74ACT574DW ,Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputsmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74ACT574DWRG4 ,Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-SOIC -40 to 85/sc/package.Please be aware that an important notice concerning availability, standard warranty, an ..
SN74ACT574NSRG4 , OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SN74ACT574PW ,Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputslogic diagram (positive logic)1OE11CLKC1 191Q21D 1DTo Seven Other Channels†absolute
SN74ACT574PWR ,Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN74ACT7201LA15NP , 512 x 9 asynchronous FIFO memory
SN74LS266N ,QUAD 2-INPUT EXCLUSIVE NOR GATE/productcontent for the latest availabilityinformation and additional product content details.TBD: ..
SN74LS266NSR ,Quad 2-input exclusive-NOR gates with open collector outputs17-Mar-2017PACKAGING INFORMATIONOrderable Device Status Package Type Package Pins Package Eco Plan ..
SN74LS26D ,QUAD 2-INPUT NAND BUFFERmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage , ..
SN74LS26D ,QUAD 2-INPUT NAND BUFFER
SN74LS26DR ,Quad 2-input high-voltage interface positive-NAND gatesmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage , ..
SN74LS26DRG4 ,Quad 2-input high-voltage interface positive-NAND gates 14-SOIC 0 to 70SN5426. SN54L825, SN7425, SN74LSZG[IUADRUPLE 2-INPUTSDLS087 HlGH-VDLTAGE INTERFACE PDSITIVE-NAND GA ..


SN74ACT574DBR-SN74ACT574DW-SN74ACT574DWRG4-SN74ACT574PW-SN74ACT574PWR
Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs
SN54ACT574, SN74ACT574
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCAS537D − OCTOBER 1995 − REVISED NOVEMBER 2002 4.5-V to 5.5-V VCC Operation Inputs Accept Voltages to 5.5 V Max tpd of 9 ns at 5 V Inputs Are TTL-Voltage Compatible
description/ordering information

These 8-bit flip-flops feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. The devices
are particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
The eight flip-flops of the ’ACT574 devices are
D-type edge-triggered flip-flops. On the positive
transition of the clock (CLK) input, the Q outputs
are set to the logic levels set up 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
the increased drive provide the capability to drive
bus lines in a bus-organized system without need
for interface or pullup components.
OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while
the outputs 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.
ORDERING INFORMATION
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.
GND
VCC
CLK
SN54ACT574 ...J OR W PACKAGE
SN74ACT574... DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
1 2019
9101112131DOE7Q
GND
CLK
SN54ACT574... FK PACKAGE
(TOP VIEW)
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