SN74LV4040APW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Binary Counter
• Characteristics: Low-voltage, 12-stage ripple-carry binary counter
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: High-performance digital logic device for counting applications
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Operating Temperature Range: -40°C to +85°C
• Number of Stages: 12
• Maximum Clock Frequency: 50 MHz
• Output Type: CMOS
• Input Type: CMOS
• Package Dimensions: 4.4 mm x 5 mm x 0.925 mm

Detailed Pin Configuration

The SN74LV4040APW has a total of 16 pins. The pin configuration is as follows:

1. VCC: Positive power supply voltage input
2. GND: Ground reference voltage
3. Q12-Q1: Outputs of the 12-stage binary counter
4. MR: Master Reset input
5. CP: Clock input
6. CE: Count Enable input

Functional Features

• High-speed operation: The SN74LV4040APW can count up to 4095 in a very short time due to its high clock frequency capability.
• Ripple-carry output: The outputs of each stage are connected to the next stage's clock input, allowing for easy cascading of multiple counters.
• Master Reset: The MR input allows for resetting the counter to zero, providing flexibility in counting applications.
• Count Enable: The CE input enables or disables the counting operation, allowing for control over when the counter increments.

Advantages and Disadvantages

Advantages: - Low-voltage operation makes it suitable for battery-powered applications. - Compact TSSOP package saves board space. - High-speed operation allows for quick counting.

Disadvantages: - Limited number of stages (12) may not be sufficient for certain applications requiring higher counts. - CMOS output type may have limitations in driving certain loads.

Working Principles

The SN74LV4040APW is a ripple-carry binary counter. It uses a series of flip-flops to store and propagate the count. The clock input (CP) triggers the flip-flops, causing them to change state and increment the count. The outputs (Q12-Q1) represent the binary value of the count. The master reset (MR) input resets the counter to zero when activated. The count enable (CE) input controls whether the counter increments or remains static.

Detailed Application Field Plans

The SN74LV4040APW can be used in various applications, including:

1. Frequency division: The counter can be used to divide an input frequency by a factor of 4096, allowing for frequency scaling in electronic systems.
2. Event counting: The counter can keep track of the number of events occurring within a given time period, such as in industrial automation or scientific experiments.
3. Address generation: The counter can generate sequential addresses for memory access in microcontrollers or digital signal processors.
4. Timekeeping: By connecting an external clock source, the counter can be used as a timer or stopwatch in applications that require precise timing.

Detailed and Complete Alternative Models

1. CD4040BE: Similar 12-stage ripple-carry binary counter with a DIP (Dual In-line Package) package.
2. MC14040B: 12-stage binary counter with buffered outputs, available in various package options.
3. SN74HC4040: High-speed CMOS 12-stage binary counter with asynchronous reset and multiple package options.

These alternative models offer similar functionality and can be considered as substitutes for the SN74LV4040APW depending on specific requirements.

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