NXP 74HC574 Octal D Flip-Flop, SOIC-20, Tri-State
NXP 74HC574 high-speed octal D flip-flop with tri-state outputs. 14ns delay, 123MHz, for communications & networking. SOIC-20 package.
The NXP 74HC574 is a high-speed octal D-type flip-flop with a positive-edge trigger and 3-state outputs, designed for bus-oriented applications. This silicon-gate CMOS device is fully pin-compatible with low-power Schottky TTL logic families, ensuring easy integration into existing circuit designs. It provides a reliable and efficient solution for data storage and transfer in complex digital systems.
Each of the eight flip-flops features a separate D-type input, allowing for independent data capture. A common clock (CP) input controls the latching of data on the low-to-high transition, provided set-up and hold times are met. A shared output enable (OE) input places the outputs into a high-impedance state when driven high, facilitating safe connection to a shared bus without affecting the stored data within the flip-flops.
Key Features & Applications
This integrated circuit is built to robust standards, offering ESD protection that exceeds 2000V (HBM JESD22-A114F), enhancing its durability during handling and operation. Its high-speed performance, with a propagation delay of just 14ns and a maximum frequency of 123MHz, makes it suitable for demanding real-time processing tasks.
Primary uses include:
- Communications systems for data buffering and signal routing.
- Networking equipment where data integrity and high-speed transfer are critical.
- General digital logic design for registers, temporary storage, and bus interface units.
Important Note: This is an ESD-sensitive device. Proper electrostatic discharge precautions must be taken during handling and installation to prevent damage.
With its wide operating voltage range of 2V to 6V and an extensive temperature range from -40°C to 125°C, the 74HC574 is a versatile and dependable component for industrial, commercial, and communication applications.
- Communications systems
- Networking equipment
- Digital logic circuits and registers
- Bus-oriented applications and data buffering
- Logic Family / Base Number: 74HC574
- Function: Octal D-Type Flip-Flop
- Trigger Type: Positive Edge
- IC Output Type: Tri-State (3-State)
- Propagation Delay: 14ns
- Maximum Frequency: 123MHz
- Output Current: 7.8mA
- Supply Voltage Min: 2V
- Supply Voltage Max: 6V
- Operating Temperature Min: -40°C
- Operating Temperature Max: 125°C
- IC Case / Package: SOIC
- No. of Pins: 20 Pins
- Logic Case Style: SOIC
- ESD Protection: Exceeds 2000V HBM (JESD22-A114F)
- Compliance: JEDEC standard no. 7A
- Pin Compatibility: Low-power Schottky TTL
- MSL (Moisture Sensitivity Level): MSL 1 - Unlimited
- Frequency: 123MHz
- of Pins: 20Pins
- Logic IC Family: 74HC
- Logic IC Base Number: 74574
- MSL: MSL 1 - Unlimited
- SVHC: No SVHC (17-Jan-2023)
Always follow local regulations and product guidance.
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