KA558B

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KA558B

+BOM

4 FUNC, BIPOLAR, PDIP16

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Specifications

Attribute Value
Supplier Rochester Electronics, LLC
Package Bulk
ProductStatus Active
Type Timer
Voltage-Supply 4.5V ~ 16V
Current-Supply 16 mA
OperatingTemperature 0°C ~ 70°C
Package/Case 16-DIP (0.300, 7.62mm)
SupplierDevicePackage 16-PDIP

Overview

Description

The KA558B is a versatile integrated circuit often used in electronic applications requiring precise timing and oscillation functions. It is typically utilized in various timer, delay, pulse generation, and oscillator circuits due to its reliability and ease of use. The KA558B operates as a monostable or astable multivibrator, making it suitable for applications like pulse-width modulation, frequency generation, and time delay circuits.
Key features of the KA558B include a wide supply voltage range, low power consumption, and compatibility with both TTL and CMOS logic levels. It is designed to provide accurate timing intervals and can operate in a temperature range that suits most electronic projects. The device's output can drive a variety of loads, facilitating its integration into diverse electronic systems.
Overall, the KA558B is valued for its flexibility, precision, and durability, making it a popular choice among engineers and hobbyists looking to implement effective timing solutions in their circuits.

Equivalent

The KA558B is a quad timer IC similar to the LM558 or NE558. Equivalent products include the LM558 and SE558, which are also quad timers with similar functionality. These ICs can be used in timing applications, waveform generation, and pulse width modulation, among other uses, providing versatile timing solutions in electronic circuits.

Features

The KA558B is a monolithic quad timer designed for precision timing applications. Here are some of its key features:
1. Quad Independent Timers: Contains four independent timers, making it versatile for multiple timing applications.
2. Wide Supply Voltage Range: Operates efficiently across a broad voltage range, typically from 3V to 18V, ensuring compatibility with various systems.
3. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
4. High Timing Precision: Provides accurate timing with minimal drift, crucial for applications requiring precision.
5. Astable and Monostable Operation: Can be configured in both astable (oscillator) and monostable (pulse generation) modes.
6. Adjustable Duty Cycle: Allows for easy adjustment of the duty cycle in astable mode, offering flexibility in waveform generation.
7. TTL and CMOS Compatible: Inputs and outputs are compatible with both TTL and CMOS logic levels.
8. Temperature Stability: Exhibits good stability across a wide temperature range, enhancing reliability.
9. Compact Package: Available in a PDIP or SOIC package, facilitating easy integration into circuit designs.
These features make the KA558B suitable for various applications, including timing delay circuits, pulse generation, and waveform generation.

Pinout

The KA558B is a precision timer IC, commonly used as a replacement or equivalent to the LM558. It is a quad version, meaning it contains four independent timers in a single package. The KA558B typically comes in a 14-pin dual in-line package (DIP). Here is a concise description of its pin functions:
1. Pin 1 - Ground (GND): Common ground connection for all timers.
2. Pin 2 - Trigger (A): Input to start the timing interval for Timer A.
3. Pin 3 - Output (A): Output of Timer A.
4. Pin 4 - Reset (A): Resets Timer A.
5. Pin 5 - Control Voltage (A): Used to adjust the threshold voltage for Timer A.
6. Pin 6 - Threshold (A): Ends the timing interval for Timer A when it exceeds 2/3 VCC.
7. Pin 7 - Discharge (A): Open-collector output discharges the timing capacitor for Timer A.
8. Pin 8 - Discharge (B): Same as Pin 7 but for Timer B.
9. Pin 9 - Threshold (B): Same as Pin 6 but for Timer B.
10. Pin 10 - Control Voltage (B): Same as Pin 5 but for Timer B.
11. Pin 11 - Reset (B): Same as Pin 4 but for Timer B.
12. Pin 12 - Output (B): Same as Pin 3 but for Timer B.
13. Pin 13 - Trigger (B): Same as Pin 2 but for Timer B.
14. Pin 14 - VCC: Positive supply voltage.
These pins provide the necessary connectivity for the IC's operation in various applications like oscillators, pulse generation, and timers.

Manufacturer

The KA558B is manufactured by Fairchild Semiconductor. Fairchild Semiconductor was an American company that specialized in the design and manufacture of semiconductors, specifically integrated circuits and transistors. Founded in 1957, it played a crucial role in the development of Silicon Valley and was known for its innovation in the semiconductor industry. The company was involved in producing a wide range of semiconductor products used in various electronics applications.
Fairchild Semiconductor's contributions to the industry include the development of the first commercially practical integrated circuit, which significantly advanced the technology of the time. The company was a key player in the electronics industry for many decades, providing components that were essential for consumer electronics, industrial applications, and more.
In 2016, Fairchild Semiconductor was acquired by ON Semiconductor (now known as onsemi), another major player in the semiconductor industry. Onsemi continues to provide a wide range of semiconductor products and solutions for various applications, including automotive, industrial, and communications.

Application

The KA558B is a timer IC, often used for precision timing applications. Key application areas include:
1. Timing Delays: It can generate precise time delays in electronic circuits.
2. Pulse Generation: Useful in creating pulse-width modulation (PWM) for controlling devices like motors.
3. Oscillator: Can be used as an oscillator for clock generation in various applications.
4. Sequential Timing: Helps in applications that require sequential operations, such as LED blinking or traffic light control systems.
5. Waveform Generation: In audio applications, it can generate audio tones or sound effects.
These versatile uses make the KA558B suitable for consumer electronics, industrial control systems, and educational projects.

Package

The KA558B is typically available in a Dual Inline Package (DIP). This package type is commonly used for through-hole components and features two parallel rows of pins.