MC74HCT573A_06 Datasheet, PDF (1/7 Pages) ON Semiconductor – Octal 3−State Noninverting Transparent Latch with LSTTL Compatible Inputs

MC74HCT573A
Octal 3−State Noninverting
Transparent Latch with
LSTTL Compatible Inputs
High−Performance Silicon−Gate CMOS
The MC74HCT573A is identical in pinout to the LS573. This
device may be used as a level converter for interfacing TTL or NMOS
outputs to High−Speed CMOS inputs.
These latches appear transparent to data (i.e., the outputs change
asynchronously) when Latch Enable is high. When Latch Enable goes
low, data meeting the setup and hold times becomes latched.
The Output Enable input does not affect the state of the latches, but
when Output Enable is high, all device outputs are forced to the
high−impedance state. Thus, data may be latched even when the
outputs are not enabled.
The HCT573A is identical in function to the HCT373A but has the
Data Inputs on the opposite side of the package from the outputs to
facilitate PC board layout.
• 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: 10 μA
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 234 FETs or 58.5 Equivalent Gates
— Improved Propagation Delays
— 50% Lower Quiescent Power
w These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
http://onsemi.com
20
1
20
1
PDIP−20
N SUFFIX
CASE 738
SOIC WIDE−20
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
MC74HCT573AN
AWLYYWW
1
20
HCT573A
AWLYYWW
1 ₂₀
20
1
TSSOP−20
DT SUFFIX
CASE 948E
HCT
573A
ALYW
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
Package Shipping
MC74HCT573AN
PDIP−20 1440 / Box
MC74HCT573ADW SOIC−WIDE 38 / Rail
MC74HCT573ADWR2 SOIC−WIDE 1000 / Reel
MC74HCT573ADT
TSSOP−20 75 / Rail
MC74HCT573ADTR2 TSSOP−20 2500 / Reel
© Semiconductor Components Industries, LLC, 2006
1
March, 2006 − Rev. 11
Publication Order Number:
MC74HCT573A/D