Overview
The 74HCT374D,653 is an octal positive-edge triggered D-type flip-flop with 3-state outputs, manufactured by Nexperia (previously part of NXP Semiconductors). This device is part of the 74HCT family, which is compatible with TTL logic levels. It features a clock (CP) and output enable (OE) inputs, allowing for flexible control over the 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
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT374D | 4.5 - 5.5 | TTL | ± 6 | 13 | 48 | low | -40 ~ 125 | 85 | 27.2 | 61 | SO20 |
Key Features
- Octal positive-edge triggered D-type flip-flop with 3-state outputs
- Wide supply voltage range from 4.5 V to 5.5 V
- CMOS low power dissipation
- High noise immunity
- TTL compatible input levels
- Non-inverting 3-state outputs
- 8-bit positive edge-triggered register
- Common 3-state output enable input
- Independent register and 3-state buffer operation
- Complies with JEDEC standards (JESD8C and JESD7A)
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V
Applications
The 74HCT374D is versatile and finds applications across various industries, including:
- Automotive systems
- Industrial control systems
- Mobile and consumer electronics
- Computing and data processing systems
- Power management and control systems
- Wearable technology and IoT devices
Q & A
- What is the primary function of the 74HCT374D?
The 74HCT374D is an octal positive-edge triggered D-type flip-flop with 3-state outputs, used for storing and transferring data in digital circuits.
- What is the supply voltage range for the 74HCT374D?
The supply voltage range for the 74HCT374D is from 4.5 V to 5.5 V.
- What type of logic levels does the 74HCT374D support?
The 74HCT374D supports TTL (Transistor-Transistor Logic) compatible input levels.
- What is the maximum clock frequency for the 74HCT374D?
The maximum clock frequency for the 74HCT374D is 48 MHz.
- 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.
- What is the operating temperature range for the 74HCT374D?
The operating temperature range for the 74HCT374D is from -40 °C to +125 °C.
- Does the 74HCT374D have ESD protection?
- What package types are available for the 74HCT374D?
The 74HCT374D is available in the SO20 (SOT163-1) package.
- Is the 74HCT374D RoHS compliant?
- Where can I find more detailed technical information about the 74HCT374D?
You can find detailed technical information in the datasheet available on the Nexperia website or through authorized distributors.
