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MC74HCT574 Datasheet PDF : 7 Pages
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MC74HCT574A
Octal 3-State Noninverting
D Flip-Flop with
LSTTL-Compatible Inputs
High−Performance Silicon−Gate CMOS
The MC74HCT574A is identical in pinout to the LS574. This
device may be used as a level converter for interfacing TTL or NMOS
outputs to High Speed CMOS inputs.
Data meeting the setup time is clocked to the outputs with the rising
edge of the Clock. The Output Enable input does not affect the states
of the flip−flops, but when Output Enable is high, all device outputs
are forced to the high−impedance state. Thus, data may be stored even
when the outputs are not enabled.
The HCT574A is identical in function to the HCT374A but has the
flip−flop inputs on the opposite side of the package from the outputs to
facilitate PC board layout.
Features
• Output Drive Capability: 15 LSTTL Loads
• TTL NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 mA
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7 A
• Chip Complexity: 286 FETs or 71.5 Equivalent Gates
• These Devices are Pb−Free and are RoHS Compliant
1
1
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http://onsemi.com
MARKING
DIAGRAMS
20
PDIP−20
N SUFFIX
CASE 738
MC74HCT574AN
AWLYYWWG
1
20
SOIC−20
DW SUFFIX
CASE 751D
1
HCT574A
AWLYYWWG
20
TSSOP−20
DT SUFFIX
CASE 948E
1
HCT
574A
ALYWG
G
A
WL, L
YY, Y
WW, W
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
June, 2011 − Rev. 10
Publication Order Number:
MC74HCT574A/D
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