SN74HC573AQPWRQ1 Octal Transparent D-Type Latches

The SN74HC573AQPWRQ1 from Texas Instruments is a high-performance, octal transparent D-type latch designed for 2-V to 6-V VCC operation. This integrated circuit is part of the 74HC family, which is characterized by the high noise immunity and low power consumption of CMOS integrated circuits, along with speeds approaching those of LSTTL circuits.

Featuring eight latches with 3-state outputs, the SN74HC573AQPWRQ1 is optimized for use in automotive applications and is qualified for use in accordance with the requirements of the Automotive Electronics Council (AEC-Q100). The device ensures a reliable performance in the demanding conditions commonly found in automotive environments.

Each latch is D-type, meaning it captures the state of the data input on a latch-enable (LE) signal's high-to-low transition and retains that state while LE is low. The 3-state outputs can be set to either high impedance, a logical high, or a logical low, which is essential for interfacing with bus-oriented systems. When the output-enable (OE) input is high, the outputs are in the high-impedance state, allowing for bidirectional operation of bus lines without the need for external components.

The robust design of this component ensures that it is capable of withstanding the harsh conditions of automotive applications, including a wide temperature range and resistance to wear and tear. The device comes in a TSSOP (Thin Shrink Small Outline Package) form factor, with the part number suffix 'QPWRQ1' indicating its automotive-grade quality.

Key features of the SN74HC573AQPWRQ1 include:

• Wide operating voltage range of 2 V to 6 V
• High-current 3-state outputs can drive up to 15 LSTTL loads
• Low power consumption, 80-µA maximum ICC
• AEC-Q100 qualified for automotive applications
• Typical tpd of 13 ns
• ±6-mA output drive at 5 V
• Low input current of 1 µA maximum

With its combination of advanced features and rigorous quality standards, the SN74HC573AQPWRQ1 is an excellent choice for automotive electronics designers who require a reliable, high-performing latch for their digital systems.