STMicroelectronics 74VHC574MTR Octal D-Type Flip-Flop

The 74VHC574MTR from STMicroelectronics is an advanced high-speed CMOS octal D-type flip-flop with 3-state non-inverting outputs. This integrated circuit is designed to provide high-performance memory storage and data transfer in a wide range of electronic applications. The device is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

Featuring eight edge-triggered flip-flops with individual D-type inputs and Q outputs, the 74VHC574MTR is capable of storing eight bits of data. Each flip-flop is triggered by a low-to-high transition of the clock (CK) input while a low level at the clear (CLR) input sets all outputs to low, regardless of the levels of the other inputs. The outputs transition to a high impedance state when the output enable (OE) input is high, allowing for multiplexed data transmission and bus-connected systems.

Manufactured using STMicroelectronics' proprietary high-speed CMOS technology, this device offers a robust combination of high speed and low power consumption. The 74VHC574MTR operates at a voltage range of 2.0V to 5.5V, making it compatible with TTL-level logic while maintaining CMOS-level low power dissipation.

Key features of the 74VHC574MTR include:

• High-speed performance: t<sub>PD 5.2ns (max) at V<sub>CC = 5V
• Low power dissipation: I<sub>CC = 4µA (max) at T<sub>A = 25°C
• Power down protection on inputs and outputs
• Symmetrical output impedance: |I<sub>OH| = |I<sub>OL| = 8mA (min) at V<sub>CC = 4.5V
• Balanced propagation delays: t<sub>PLH ≈ t<sub>PHL
• Pin and function compatible with 74 series logic

The device is offered in a compact surface-mount LQFP-20 package, making it ideal for space-constrained applications. Its wide operating temperature range from -55°C to +125°C ensures reliability across various environmental conditions. The 74VHC574MTR is an essential component for designers looking for a high-speed, low-power octal flip-flop with the quality and reliability of STMicroelectronics.

For detailed specifications and application information, designers should consult the official datasheet and product resources available from STMicroelectronics.