MC74AC573DTR2G

Latches Overview

The MC74AC573DTR2G is an octal buffer and line driver with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V. Propagation delays are specified at 13 ns maximum at 3.3 V and 10 ns maximum at 5.0 V. The device features low quiescent current of 8 µA typical, with output drive capabilities of 24 mA source and sink currents. It utilizes a TSSOP-20 surface-mount package.

Latches Feature Summary

• Features inputs and outputs positioned on opposite sides of the package to facilitate direct interfacing with microprocessors.
• Provides three-state outputs suitable for bus-oriented memory and signal driving applications.
• Contains eight D-type latches with buffered common Latch Enable (LE) and Output Enable (OE) inputs.

Latches Applications

• Microprocessor input or output port expansion
• Bus-oriented memory addressing
• Signal driving applications

Latches Procurement Notes

Verify the specific ordering suffix 'DTR2G' corresponds to the TSSOP-20 package and tape-and-reel shipping configuration. Confirm RoHS compliance status and lead-free marking requirements against the latest manufacturer documentation before finalizing procurement specifications.

Latches Selection Notes

Select this component when high-speed data latching is required in a compact surface-mount form factor. The opposite-side pinout design simplifies PCB layout for microprocessor interfaces compared to same-side configurations. Ensure operating voltage aligns with the 2.0 V to 6.0 V specification range.

Latches Part Context

This part belongs to the MC74AC573 family of octal latches. It is functionally identical to the MC74AC373 but differs in pin assignment, placing inputs and outputs on opposite sides of the package. This distinction aids in routing efficiency for specific board layouts.

Latches Replacement Considerations

MC74AC373DTR2G

Latches FAQ

How does the pinout differ from the MC74AC373?

The MC74AC573 places inputs and outputs on opposite sides of the package, whereas the MC74AC373 has them on the same side, despite being functionally identical.

What controls the 3-state output buffers?

The Output Enable (OE) input controls the buffers; a HIGH level on OE places the outputs in a high impedance mode.