Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Renesas Electronics America Inc |
| Package | Tube |
| ProductStatus | Obsolete |
| Type | Counter/Timer Circuit (CTC), Binary |
| Count | 128/256 |
| Frequency | 0.1Hz ~ 13MHz |
| Voltage-Supply | 2V ~ 16V |
| Current-Supply | 340 µA |
| OperatingTemperature | -25°C ~ 85°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
Tổng quan
Description
ICM7242IBAZ is an integrated circuit used primarily as a keypad encoder, designed to interface matrix-style keypads with microprocessors or microcontrollers. It simplifies the process of translating the row and column signals from a keypad matrix into a binary output that a microcontroller can process.
Key features of the ICM7242IBAZ typically include debounce circuitry to ensure stable input, the ability to handle various keypad sizes (commonly up to 16 keys), and a priority encoder that assigns a binary code based on the highest priority key pressed. It often incorporates features like single or multiple keypress detection, and in some cases, it may be equipped with a strobe output or interrupt signal to alert the processor of a keypress event.
This IC is commonly used in applications like calculators, security systems, and various consumer electronics where efficient human-machine interfacing with a keypad is required. Its use reduces the complexity and the number of I/O pins needed on the controlling microprocessor, enabling more streamlined and cost-effective designs.
Key features of the ICM7242IBAZ typically include debounce circuitry to ensure stable input, the ability to handle various keypad sizes (commonly up to 16 keys), and a priority encoder that assigns a binary code based on the highest priority key pressed. It often incorporates features like single or multiple keypress detection, and in some cases, it may be equipped with a strobe output or interrupt signal to alert the processor of a keypress event.
This IC is commonly used in applications like calculators, security systems, and various consumer electronics where efficient human-machine interfacing with a keypad is required. Its use reduces the complexity and the number of I/O pins needed on the controlling microprocessor, enabling more streamlined and cost-effective designs.
Equivalent
The ICM7242IBAZ is a programmable timer manufactured by Renesas (formerly Intersil). Equivalent products that can perform similar timing functions include the NE555 timer from Texas Instruments and the LM555 timer from ON Semiconductor. Both of these are widely-used general-purpose timers capable of monostable and astable operation. However, specific pin compatibility and feature sets might differ, so it is crucial to review the datasheets to ensure they meet your application's requirements.
Features
The ICM7242IBAZ is a programmable timer integrated circuit, primarily used for timing applications. Key features include:
1. Programmable Timer: Allows precise control over timing intervals, suitable for applications requiring scheduled operations.
2. Wide Time Range: Offers a broad range of programmable time durations, typically from milliseconds to hours, accommodating various application needs.
3. Low Power Consumption: Optimized for minimal power usage, making it ideal for battery-operated devices and energy-efficient systems.
4. Simple Interface: Provides a user-friendly interface for easy programming and integration with other components in a circuit.
5. Versatile Applications: Used in diverse fields such as consumer electronics, industrial automation, and automotive systems.
6. Stability and Reliability: Designed for stable operation with minimal drift over time, ensuring reliable performance in critical applications.
7. Compact Package: Available in a compact IC package, facilitating integration into space-constrained designs.
8. Temperature Range: Operates effectively over a wide temperature range, suitable for various environmental conditions.
These features make the ICM7242IBAZ a versatile and reliable choice for timing and scheduling functions in electronic circuits.
1. Programmable Timer: Allows precise control over timing intervals, suitable for applications requiring scheduled operations.
2. Wide Time Range: Offers a broad range of programmable time durations, typically from milliseconds to hours, accommodating various application needs.
3. Low Power Consumption: Optimized for minimal power usage, making it ideal for battery-operated devices and energy-efficient systems.
4. Simple Interface: Provides a user-friendly interface for easy programming and integration with other components in a circuit.
5. Versatile Applications: Used in diverse fields such as consumer electronics, industrial automation, and automotive systems.
6. Stability and Reliability: Designed for stable operation with minimal drift over time, ensuring reliable performance in critical applications.
7. Compact Package: Available in a compact IC package, facilitating integration into space-constrained designs.
8. Temperature Range: Operates effectively over a wide temperature range, suitable for various environmental conditions.
These features make the ICM7242IBAZ a versatile and reliable choice for timing and scheduling functions in electronic circuits.
Pinout
The ICM7242IBAZ is an 18-pin device. It is a CMOS decade counter with a 7-segment decoder designed primarily for use in digital systems. This integrated circuit performs the function of counting and displaying decimal digits. It accepts clock signals and counts in a sequential manner from 0 to 9, outputting the result in a format that can drive a 7-segment display directly. The device is typically used in applications such as digital clocks, electronic meters, and other devices where numerical data needs to be displayed.
Key functions include:
- Accepting input clock pulses to increment the count.
- Decoding the count into a form suitable for driving a 7-segment display.
- Providing control inputs for resetting or disabling counting as required.
The exact pin configuration and detailed functions of each pin would be specified in the device's datasheet, which also includes necessary electrical characteristics and operational guidelines.
Key functions include:
- Accepting input clock pulses to increment the count.
- Decoding the count into a form suitable for driving a 7-segment display.
- Providing control inputs for resetting or disabling counting as required.
The exact pin configuration and detailed functions of each pin would be specified in the device's datasheet, which also includes necessary electrical characteristics and operational guidelines.
Manufacturer
The ICM7242IBAZ is manufactured by Renesas Electronics Corporation. Renesas is a prominent global semiconductor company that designs, manufactures, and markets a wide range of microcontrollers, analog, power, and SoC products. The company primarily serves the automotive, industrial, home electronics, information communication technology, and office automation sectors, providing solutions that drive advancements in technology and innovation. Renesas is known for its focus on delivering comprehensive solutions that integrate both hardware and software to enhance the performance and functionality of electronic systems.
Application
The ICM7242IBAZ is a digital up/down counter IC commonly used in various electronic applications. Key application areas include:
1. Timer Systems: Utilized in timing circuits to count up or down for specific time intervals.
2. Event Counters: Employed in systems where tracking the number of occurrences of an event is necessary.
3. Frequency Counters: Used to measure the frequency of input signals.
4. Digital Clocks: Integral in creating digital timekeeping devices.
5. Scoreboards: Useful in updating scores in real-time for sports and gaming.
6. Industrial Automation: Implemented in process controls and automation systems for counting tasks.
These applications leverage the IC's ability to handle digital counting operations efficiently.
1. Timer Systems: Utilized in timing circuits to count up or down for specific time intervals.
2. Event Counters: Employed in systems where tracking the number of occurrences of an event is necessary.
3. Frequency Counters: Used to measure the frequency of input signals.
4. Digital Clocks: Integral in creating digital timekeeping devices.
5. Scoreboards: Useful in updating scores in real-time for sports and gaming.
6. Industrial Automation: Implemented in process controls and automation systems for counting tasks.
These applications leverage the IC's ability to handle digital counting operations efficiently.
Package
The ICM7242IBAZ is a part of the ICM7242 series, which typically comes in a standard package type. Specifically, the "IBAZ" suffix generally denotes a particular package type, which is SOIC (Small Outline Integrated Circuit), although it's always best to consult the manufacturer's datasheet for precise packaging details.