CD74HCT4040MT

Product Overview

• Category: Integrated Circuit
• Use: Counter/Divider
• Characteristics: High-Speed, CMOS Logic, 12-Bit Binary Ripple Counter
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The CD74HCT4040MT is a high-speed CMOS logic 12-bit binary ripple counter. It is designed to be used as a counter/divider in various electronic applications.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Speed Operation: 40 MHz (Typical)
• Counting Range: 0 to 4095
• Output Drive Capability: 10 LSTTL Loads
• Schmitt-Trigger Inputs for Noise Immunity
• Fully Static Operation
• Buffered Inputs and Outputs
• Standardized Symmetrical Output Characteristics
• Complies with JEDEC Standard No. 7A

Detailed Pin Configuration

The CD74HCT4040MT has a total of 16 pins. Here is the detailed pin configuration:

1. Q12 - Output 12
2. Q11 - Output 11
3. Q10 - Output 10
4. Q9 - Output 9
5. Q8 - Output 8
6. Q7 - Output 7
7. Q6 - Output 6
8. Q5 - Output 5
9. GND - Ground
10. Q4 - Output 4
11. Q3 - Output 3
12. Q2 - Output 2
13. Q1 - Output 1
14. MR - Master Reset
15. CP - Clock Pulse Input
16. VCC - Supply Voltage

Functional Features

• High-Speed Operation: The CD74HCT4040MT can operate at a frequency of up to 40 MHz, making it suitable for high-speed applications.
• Counting Range: It can count from 0 to 4095, providing a wide range of counting possibilities.
• Buffered Inputs and Outputs: The inputs and outputs are buffered, ensuring signal integrity and preventing interference.
• Schmitt-Trigger Inputs: The Schmitt-trigger inputs provide noise immunity, allowing reliable operation even in noisy environments.
• Fully Static Operation: The counter operates in a fully static mode, meaning it does not require any external clock signal once powered.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick counting/dividing tasks. - Wide counting range provides flexibility in various applications. - Buffered inputs and outputs ensure signal integrity. - Schmitt-trigger inputs offer noise immunity.

Disadvantages: - Limited to 12-bit counting, may not be suitable for applications requiring higher precision. - Requires an external clock pulse input for counting.

Working Principles

The CD74HCT4040MT is a ripple counter that uses CMOS logic. It counts binary numbers from 0 to 4095 based on the clock pulses received at the CP (Clock Pulse) input. Each clock pulse increments the counter by one. The outputs represent the binary value of the count, with Q1 being the least significant bit (LSB) and Q12 being the most significant bit (MSB). The counter can be reset to zero using the MR (Master Reset) input.

Detailed Application Field Plans

The CD74HCT4040MT can be used in various applications, including:

1. Frequency Division: It can be used as a frequency divider to generate lower-frequency signals from a higher-frequency input.
2. Time Delay Generation: By connecting the output of the counter to a suitable circuit, it can be used to generate precise time delays.
3. Event Counting: The counter can be used to count events or pulses in applications such as digital counters, timers, and frequency meters.
4. Binary-to-Decimal Conversion: By connecting the outputs of the counter to suitable decoding logic, it can be used to convert binary numbers to decimal format.

Detailed and Complete Alternative Models

1. CD4020BE: 14-stage ripple carry binary counter/divider
2. CD4060BE: 14-stage ripple carry binary counter/divider with oscillator
3. CD4518BE: Dual BCD up-counter
4. CD4520BE: Dual binary up-counter

These alternative models offer similar functionality and can be used as alternatives to the CD74HCT4040MT depending on specific requirements.

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