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SN74HC74N
IC FF D-TYPE DUAL 1BIT 14DIP
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- 製造商。 部分 #SN74HC74N
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規格
| Package | Tube |
| Series | 74HC |
| ProductStatus | Active |
| Function | Set(Preset) and Reset |
| Type | D-Type |
| OutputType | Complementary |
| NumberofElements | 2 |
| NumberofBitsperElement | 1 |
| ClockFrequency | 60 MHz |
| MaxPropagationDelay@VMaxCL | 30ns @ 6V, 50pF |
| TriggerType | Positive Edge |
| Current-OutputHighLow | 5.2mA, 5.2mA |
| Voltage-Supply | 2V ~ 6V |
| Current-Quiescent(Iq) | 4 µA |
| InputCapacitance | 3 pF |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Through Hole |
| SupplierDevicePackage | 14-PDIP |
概述
Description
The SN74HC74N is a dual D-type flip-flop integrated circuit from Texas Instruments, designed for high-speed digital applications. It operates with a supply voltage range of 2V to 6V and is part of the 74HC (High-speed CMOS) family, ensuring low power consumption and fast switching times.
This flip-flop captures the value of the D (data) input at a rising edge of the clock (CLK) input, transferring this value to the Q output. It features asynchronous set (PRE) and reset (CLR) inputs, allowing for immediate control over the output states. The SN74HC74N is widely used in memory storage, counters, and state machines, making it a fundamental component in digital circuits.
The device is packaged in various forms, including DIP, SOIC, and TSSOP, facilitating easy integration into various projects. Its robust performance and versatility make it a popular choice among engineers and hobbyists in digital electronics design.
This flip-flop captures the value of the D (data) input at a rising edge of the clock (CLK) input, transferring this value to the Q output. It features asynchronous set (PRE) and reset (CLR) inputs, allowing for immediate control over the output states. The SN74HC74N is widely used in memory storage, counters, and state machines, making it a fundamental component in digital circuits.
The device is packaged in various forms, including DIP, SOIC, and TSSOP, facilitating easy integration into various projects. Its robust performance and versatility make it a popular choice among engineers and hobbyists in digital electronics design.
Features
The SN74HC74N is a dual D-type flip-flop designed for high-speed operation and low power consumption. Key features include:
1. Dual D Flip-Flops: Contains two independent D flip-flops, each with a clock and reset input.
2. High-Speed Performance: Designed for operation up to 5 MHz with short propagation delays, making it suitable for fast digital circuits.
3. Wide Supply Voltage Range: Operates with a supply voltage of 2V to 6V, compatible with various logic levels.
4. Low Power Consumption: Features low power dissipation, ideal for battery-powered devices.
5. Asynchronous Reset: Each flip-flop includes an asynchronous reset feature, allowing immediate resetting regardless of the clock signal.
6. TTL Compatible: The device is compatible with TTL (Transistor-Transistor Logic) inputs and outputs.
7. Wide Temperature Range: Functions effectively in a temperature range of -40°C to +85°C.
These features make the SN74HC74N suitable for a variety of digital applications, including data storage and state control in sequential circuits.
1. Dual D Flip-Flops: Contains two independent D flip-flops, each with a clock and reset input.
2. High-Speed Performance: Designed for operation up to 5 MHz with short propagation delays, making it suitable for fast digital circuits.
3. Wide Supply Voltage Range: Operates with a supply voltage of 2V to 6V, compatible with various logic levels.
4. Low Power Consumption: Features low power dissipation, ideal for battery-powered devices.
5. Asynchronous Reset: Each flip-flop includes an asynchronous reset feature, allowing immediate resetting regardless of the clock signal.
6. TTL Compatible: The device is compatible with TTL (Transistor-Transistor Logic) inputs and outputs.
7. Wide Temperature Range: Functions effectively in a temperature range of -40°C to +85°C.
These features make the SN74HC74N suitable for a variety of digital applications, including data storage and state control in sequential circuits.
Package
The SN74HC74N is typically packaged in a Dual In-line Package (DIP) format, specifically a 14-pin DIP. This package type allows for easy insertion into breadboards and sockets for prototyping and circuit assembly.
Pinout
The SN74HC74N is a dual D-type flip-flop IC with a total of 14 pins. The pin configuration is as follows:
1. Pin 1: Q1 - Output of the first flip-flop
2. Pin 2: Q1' - Inverted output of the first flip-flop
3. Pin 3: D1 - Data input for the first flip-flop
4. Pin 4: CLK1 - Clock input for the first flip-flop
5. Pin 5: CLR1 - Asynchronous clear input for the first flip-flop (active low)
6. Pin 6: PRE1 - Asynchronous preset input for the first flip-flop (active low)
7. Pin 7: GND - Ground
8. Pin 8: VCC - Power supply (typically +2V to +6V)
9. Pin 9: PRE2 - Asynchronous preset input for the second flip-flop (active low)
10. Pin 10: CLR2 - Asynchronous clear input for the second flip-flop (active low)
11. Pin 11: CLK2 - Clock input for the second flip-flop
12. Pin 12: D2 - Data input for the second flip-flop
13. Pin 13: Q2 - Output of the second flip-flop
14. Pin 14: Q2' - Inverted output of the second flip-flop
This device is widely used for data storage and timing applications in digital circuits.
1. Pin 1: Q1 - Output of the first flip-flop
2. Pin 2: Q1' - Inverted output of the first flip-flop
3. Pin 3: D1 - Data input for the first flip-flop
4. Pin 4: CLK1 - Clock input for the first flip-flop
5. Pin 5: CLR1 - Asynchronous clear input for the first flip-flop (active low)
6. Pin 6: PRE1 - Asynchronous preset input for the first flip-flop (active low)
7. Pin 7: GND - Ground
8. Pin 8: VCC - Power supply (typically +2V to +6V)
9. Pin 9: PRE2 - Asynchronous preset input for the second flip-flop (active low)
10. Pin 10: CLR2 - Asynchronous clear input for the second flip-flop (active low)
11. Pin 11: CLK2 - Clock input for the second flip-flop
12. Pin 12: D2 - Data input for the second flip-flop
13. Pin 13: Q2 - Output of the second flip-flop
14. Pin 14: Q2' - Inverted output of the second flip-flop
This device is widely used for data storage and timing applications in digital circuits.
Manufacturer
The SN74HC74N is manufactured by Texas Instruments (TI), a global semiconductor company based in the United States. Founded in 1930, Texas Instruments designs and produces a wide range of electronics, including analog and digital semiconductors, embedded processors, and various integrated circuits. TI is known for its innovations in analog technology and is a leading supplier of components used in consumer electronics, automotive, industrial, and communication applications. The SN74HC74N specifically is a dual D-type flip-flop, widely used in digital circuits for data storage and manipulation.
Application
The SN74HC74N is a dual D-type flip-flop, commonly used in digital circuits for data storage, synchronization, and timing applications. Its primary application areas include:
1. Data storage - temporarily holding binary data.
2. State machines - implementing sequential logic.
3. Frequency dividers - reducing clock frequencies.
4. Edge-triggered operations - responding to signal transitions.
5. Counters - creating binary counters in various designs.
Its high-speed operation and low power consumption make it ideal for modern electronic systems.
1. Data storage - temporarily holding binary data.
2. State machines - implementing sequential logic.
3. Frequency dividers - reducing clock frequencies.
4. Edge-triggered operations - responding to signal transitions.
5. Counters - creating binary counters in various designs.
Its high-speed operation and low power consumption make it ideal for modern electronic systems.
Equivalent
The SN74HC74N is a dual D-type flip-flop. Equivalent products include:
1. MC74HC74A - from ON Semiconductor
2. 74HC74 - from various manufacturers (NXP, STMicroelectronics, etc.)
3. CD74HC74 - from Texas Instruments (similar functionality)
4. 74HCT74 - if TTL compatible levels are required.
Always check datasheets for specific pin configurations and electrical characteristics.
1. MC74HC74A - from ON Semiconductor
2. 74HC74 - from various manufacturers (NXP, STMicroelectronics, etc.)
3. CD74HC74 - from Texas Instruments (similar functionality)
4. 74HCT74 - if TTL compatible levels are required.
Always check datasheets for specific pin configurations and electrical characteristics.
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