SN74AHC573DGVR Octal Transparent D-Type Latches with 3-State Outputs

The SN74AHC573DGVR from Texas Instruments is a high-performance, octal transparent D-type latch with three-state outputs. This integrated circuit is designed for 2-V to 5.5-V VCC operation, making it suitable for a wide range of applications, from portable electronics to industrial control systems. The device features eight latches with three-state outputs for bus-oriented applications.

The SN74AHC573DGVR comes in a compact 16-pin TSSOP (DGVR) package, optimized for minimized space on PCBs. Each latch is capable of storing a single bit of information. The transparent nature of the latches means that while the latch-enable (LE) input is high, the Q outputs will follow the data (D) inputs. When LE is taken low, the Q outputs will hold the last data presented prior to the transition of LE from high to low.

With a wide operating temperature range of -40°C to 85°C, the device is reliable under various environmental conditions. Additionally, the SN74AHC573DGVR offers a high degree of flexibility with its 3-state outputs, which can be placed in a high-impedance state. This feature is particularly useful for sharing a common data bus, as it allows the outputs to be disconnected from the bus without interfering with the operation of other devices connected to it.

The device also boasts a low power consumption, with ICC reduced by 50% over the previous generation, making it an energy-efficient choice for battery-powered devices. Fast propagation delays and output transition times ensure that the device operates efficiently in high-speed systems.

Key features of the SN74AHC573DGVR include:

• Eight latches with 3-state outputs for bus-oriented applications
• Wide operating voltage range of 2 V to 5.5 V
• Supports mixed-mode voltage operation on all ports
• Maximum ICC of 20 µA
• ±8-mA output drive at 5 V
• Low power consumption
• 16-pin TSSOP package for space-saving applications
• Industrial temperature range of -40°C to 85°C

Overall, the SN74AHC573DGVR is an excellent choice for designers looking for a reliable and versatile latch for their digital systems. Its combination of high-speed operation, power efficiency, and three-state outputs make it a valuable component for a diverse array of applications.