Encyclopedia Entry: 74AHC273BQ-Q100X

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, low-power, octal D-type flip-flop
• Package: QFN (Quad Flat No-leads)
• Essence: Sequential logic device for storing and transferring binary information
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC
• Low-Level Output Voltage: 0.1 x VCC
• Maximum Operating Frequency: 160 MHz
• Propagation Delay Time: 8 ns
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74AHC273BQ-Q100X has a total of 20 pins, which are assigned as follows:

1. CP (Clock Pulse) - Clock input for flip-flop operation
2. D0-D7 (Data Inputs) - Eight individual data inputs
3. Q0-Q7 (Outputs) - Corresponding outputs for each data input
4. GND (Ground) - Ground reference
5. OE (Output Enable) - Active-low output enable control
6. CLR (Clear) - Active-low clear input
7. VCC (Supply Voltage) - Positive power supply

Functional Features

• Octal D-Type Flip-Flop: Can store and transfer eight bits of binary information simultaneously
• High-Speed Operation: Allows for efficient data processing at up to 160 MHz frequency
• Low-Power Consumption: Operates within a wide supply voltage range while minimizing power usage
• Output Enable Control: Enables or disables the outputs based on the OE input signal
• Clear Functionality: Resets all flip-flop outputs to a known state when CLR is activated

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data processing - Low-power consumption for energy-efficient applications - Compact QFN package allows for space-saving integration - Output enable control provides flexibility in managing output states - Clear functionality ensures reliable initialization of flip-flop outputs

Disadvantages: - Limited to octal (eight-bit) data storage and transfer - Requires external clock signal for proper operation - Not suitable for applications requiring higher bit capacity

Working Principles

The 74AHC273BQ-Q100X is a positive-edge-triggered D-type flip-flop. It stores and transfers binary information based on the rising edge of the clock pulse (CP) input. When the CP input transitions from low to high, the data inputs (D0-D7) are latched and stored in their corresponding flip-flop outputs (Q0-Q7). The stored data remains unchanged until the next clock pulse occurs.

The output enable (OE) input controls whether the flip-flop outputs are active or disabled. When OE is low, the outputs reflect the stored data. Conversely, when OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the external circuitry.

The clear (CLR) input, when activated by a low signal, resets all flip-flop outputs to a known state (typically low).

Detailed Application Field Plans

The 74AHC273BQ-Q100X is widely used in various digital systems and applications, including but not limited to: 1. Microcontrollers and microprocessors 2. Data storage and retrieval systems 3. Communication devices (e.g., routers, switches) 4. Industrial automation and control systems 5. Automotive electronics 6. Consumer electronics (e.g., TVs, set-top boxes)

Detailed and Complete Alternative Models

1. 74HC273: Similar functionality but operates at a lower voltage range (2.0V to 6.0V)
2. 74LS273: Operates at a higher voltage range (4.75V to 5.25V) and has different power characteristics
3. CD74HCT273: Compatible alternative with TTL logic levels and higher noise immunity

These alternative models offer similar flip-flop functionality but may have variations in voltage compatibility, power consumption, and noise tolerance.

In conclusion, the 74AHC273BQ-Q100X is a high-speed, low-power octal D-type flip-flop integrated circuit. Its compact package, versatile features, and reliable performance make it suitable for various digital applications across different industries.

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