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> X10 DM74LS373WM 74LS373 74373 octal latches SO20
X10 DM74LS373WM 74LS373 74373 octal latches SO20
A pack of ten DM74LS373WM ICs, in SO20. ("Fairchild")
3-STATE Octal D-Type Transparent Latches.
* Choice of 8 latches or 8 D-type flip-flops in a single package
* TRI-STATE bus-driving outputs
* Full parallel-access for loading
* P-N-P inputs reduce D-C loading on data lines
The eight latches of the DM54/74LS373 are transparent Dtype latches meaning that while the enable (G) is high the Q outputs will follow the data (D) inputs. When the enable is taken low the output will be latched at the level of the data that was set up.
The eight flip-flops of the DM54/74LS374 are edge-triggered D-type flip flops. On the positive transition of the clock, the Q outputs will be set to the logic states that were set up at the D inputs.
A buffered output control input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state the outputs neither load nor drive the bus lines significantly.
The output control does not affect the internal operation of the latches or flip-flops. That is, the old data can be retained or new data can be entered even while the outputs are off.
