Product Overview: MC74VHC574DTR2 by ON Semiconductor
The MC74VHC574DTR2 is a high-performance, octal D-type flip-flop integrated circuit from ON Semiconductor's VHC family. This device is designed to provide the functionality of an 8-bit memory latch along with the capability to store data. It is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers in a wide range of digital applications.
With advanced silicon-gate CMOS technology, the MC74VHC574DTR2 offers the high-speed operation similar to LSTTL combined with the power dissipation of standard CMOS integrated circuits. This blend of speed and power efficiency makes it an excellent choice for battery-powered and energy-saving applications.
The MC74VHC574DTR2 features eight edge-triggered flip-flops with individual D-type inputs and 3-state outputs. The 3-state outputs are controlled by an Output Enable (OE) input, which allows the user to place the eight outputs in either a normal logic state or a high-impedance state. This high-impedance state ensures that the outputs will not interfere with other components on the bus when the device is not in use.
The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CLK) transition. A LOW level at the OE input disables the outputs, causing the outputs to assume a high-impedance OFF-state. Conversely, a HIGH level on the OE input enables the outputs, allowing data to flow from the flip-flops to the output pins.
The MC74VHC574DTR2 is offered in a TSSOP-20 package, which allows for a reduced board space footprint. It operates over a wide voltage range of 2.0 to 5.5 volts, catering to 5V-tolerant applications, and provides a balanced propagation delay and transition times for improved signal integrity. The device also features inputs and outputs with high noise immunity, ensuring reliable operation even in electrically noisy environments.
Overall, the MC74VHC574DTR2 from ON Semiconductor is a versatile and reliable choice for designers who require a high-speed, low-power octal D-type flip-flop for their digital systems.
