Octal Transparent Latch
TECHNICAL DATA
IN74ACT573
Octal 3-State Noninverting Transparent Latch
High-Performance Silicon-Gate CMOS
The IN74ACT5...
Description
TECHNICAL DATA
IN74ACT573
Octal 3-State Noninverting Transparent Latch
High-Performance Silicon-Gate CMOS
The IN74ACT573 is identical in pinout to the LS/ALS573, HC/HCT573. The IN74ACT573 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 time becomes latched. 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 µA; 0.1 µA @ 25°C Outputs Source/Sink 24 mA
ORDERING INFORMATION IN74ACT573N Plastic IN74ACT573DW SOIC TA = -40° to 85° C for all packages
PIN ASSIGNMENT LOGIC DIAGRAM
FUNCTION TABLE
PIN 20=VCC PIN 10 = GND Inputs Output Enable L L L H Latch Enable H H L X D H L X X Output Q H L no change Z
w
w
w
.d
h s a t a
ee
. u t4
m o c
X = don’t care Z = high impedance
1
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IN74ACT573
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 t...
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