Overview
The 74HC574D,652 from Nexperia USA Inc. is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. This integrated circuit is part of the 74HC series, known for its high performance and versatility in various electronic designs. The device features a clock (CP) and output enable (OE) inputs, allowing for precise control over data storage and output states. The flip-flops store the state of their individual D-inputs on the LOW-to-HIGH clock transition, and a HIGH on the OE input causes the outputs to assume a high-impedance OFF-state without affecting the state of the flip-flops.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HC574D |
| Package | SO20 (Surface Mount) |
| Supply Voltage (VCC) | 2.0 V to 6.0 V |
| Logic Switching Levels | CMOS |
| Output Drive Capability | ± 7.8 mA |
| Propagation Delay (tpd) | 14 ns |
| Maximum Frequency (fmax) | 133 MHz |
| Operating Temperature | -40 °C to +125 °C |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| Input Capacitance | 3.5 pF |
| Current Quiescent (Iq) | 8 µA |
Key Features
- 8-bit positive-edge triggered D-type flip-flop with 3-state outputs.
- Wide supply voltage range from 2.0 V to 6.0 V.
- CMOS low power dissipation.
- High noise immunity.
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
- 3-state non-inverting outputs for bus-oriented applications.
- Common 3-state output enable input.
- ESD protection: HBM and CDM compliant.
Applications
The 74HC574D,652 is suitable for a wide range of applications, including:
- Automotive systems: Due to its robust performance and wide operating temperature range.
- Industrial control systems: For reliable data storage and transmission.
- Consumer electronics: Such as in mobile devices, wearables, and other portable electronics.
- Computing and networking: For clocking and data synchronization in digital circuits.
Q & A
- What is the primary function of the 74HC574D,652?
The primary function is to act as an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. - What is the supply voltage range for this IC?
The supply voltage range is from 2.0 V to 6.0 V. - What are the logic switching levels for the 74HC574D,652?
The logic switching levels are CMOS. - What is the maximum frequency of operation for this IC?
The maximum frequency of operation is 133 MHz. - What is the operating temperature range for this IC?
The operating temperature range is from -40 °C to +125 °C. - Does the 74HC574D,652 have ESD protection?
Yes, it has ESD protection: HBM exceeds 2000 V and CDM exceeds 1000 V. - What is the package type for the 74HC574D,652?
The package type is SO20 (Surface Mount). - Is the 74HC574D,652 RoHS compliant?
Yes, it is RoHS compliant. - What is the current quiescent (Iq) for this IC?
The current quiescent (Iq) is 8 µA. - How does the output enable (OE) input affect the outputs?
A HIGH on the OE input causes the outputs to assume a high-impedance OFF-state without affecting the state of the flip-flops.
