MC74AC573
MC74AC573 is OCTAL D-TYPE LATCH manufactured by Motorola Semiconductor.
DESCRIPTION
The MC74AC573/74ACT574 contains eight D-type latches with 3-state output buffers. When the Latch Enable (LE) input is HIGH, data on the Dn inputs enters the latches. In this condition the latches are transparent, i.e., a latch output will change state each time its D input changes. When LE is LOW the latches store the information that was present on the D inputs a setup time preceding the HIGH-to-LOW transition of LE. The 3-state buffers are controlled by the Output Enable (OE) input. When OE is LOW, the buffers are enabled. When OE is HIGH the buffers are in the high impedance mode but this does not interfere with entering new data into the latches.
LOGIC DIAGRAM
D0 D1 D2 D3 D4 D5 D6 D7
LE LE
OE O0 O1 O2 O3 O4 O5 O6 O7
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
FACT DATA
Data Sheet 4 U .
5-2
..
MC74AC573 MC74ACT573
MAXIMUM RATINGS-
Symbol VCC Vin Vout Iin Iout ICC Tstg 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 VCC or GND Current per Output Pin Storage Temperature Value
- 0.5 to +7.0
- 0.5 to VCC +0.5
- 0.5 to VCC +0.5 ±20 ±50 ±50
- 65 to +150 Unit V V V m A m A m A °C
- Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Remended Operating Conditions.
REMENDED OPERATING CONDITIONS
Symbol VCC Vin, Vout Supply...
