Overview
The SN74AC74PWRE4 is a dual positive-edge-triggered D-type flip-flop integrated circuit produced by Texas Instruments. This device is part of the 74AC series, known for its high-speed and low-power consumption. The SN74AC74PWRE4 is designed to operate within a voltage range of 2V to 6V, making it versatile for various digital circuit applications.
The device features two independent D-type flip-flops, each with a positive edge-triggered clock input, clear and preset inputs, and both normal and inverted output signals. This makes it suitable for a wide range of digital logic and memory applications.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| VCC Operation Range | V | 2 | - | 6 |
| Input Voltage Range | V | - | - | 6 |
| Maximum Propagation Delay (tpd) at 5V | ns | - | - | 10 |
| Clock Frequency at VCC = 5V | MHz | 95 | - | 140 |
| Setup Time, Data before CLK↑ at VCC = 5V | ns | 3 | - | 4 |
| Hold Time, Data after CLK↑ at VCC = 5V | ns | 0.5 | - | 0.5 |
| Pulse Duration for PRE or CLR Low at VCC = 5V | ns | 4.5 | - | 5.5 |
| Operating Temperature Range | °C | -40 | - | 85 |
| Package Type | - | - | - | TSSOP (14 pins) |
Key Features
- Dual positive-edge-triggered D-type flip-flops.
- Operates over a voltage range of 2V to 6V.
- Inputs accept voltages up to 6V.
- Maximum propagation delay of 10 ns at 5V.
- Clear and preset inputs for each flip-flop.
- Both normal and inverted output signals for each flip-flop.
- High-speed operation with clock frequencies up to 140 MHz at VCC = 5V.
- Low power consumption.
Applications
- Digital logic circuits requiring high-speed flip-flops.
- Memory circuits and data storage applications.
- Counters and timing circuits.
- Sequential logic circuits.
- General-purpose digital design where positive edge-triggered flip-flops are required.
Q & A
- What is the voltage operation range of the SN74AC74PWRE4?
The SN74AC74PWRE4 operates within a voltage range of 2V to 6V.
- What is the maximum propagation delay at 5V for the SN74AC74PWRE4?
The maximum propagation delay at 5V is 10 ns.
- What types of inputs does each flip-flop have?
Each flip-flop has a data input, a positive edge-triggered clock input, a clear input (active low), and a preset input (active low).
- What are the output signals provided by each flip-flop?
Each flip-flop provides both a normal output (Q) and an inverted output (Q).
- What is the maximum clock frequency at VCC = 5V?
The maximum clock frequency at VCC = 5V is 140 MHz.
- What is the package type of the SN74AC74PWRE4?
The package type is TSSOP with 14 pins.
- What is the operating temperature range of the SN74AC74PWRE4?
The operating temperature range is -40°C to 85°C.
- What are some common applications of the SN74AC74PWRE4?
Common applications include digital logic circuits, memory circuits, counters, timing circuits, and sequential logic circuits.
- How many flip-flops are included in the SN74AC74PWRE4?
The device includes two independent D-type flip-flops.
- Are the clear and preset inputs active high or active low?
The clear and preset inputs are active low.
