MC6840CS

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MC6840CS

+Nomenclature

MC6840 - PROGRAMMABLE TIMER MODU

  • FabricantRochester Electronics LLC

  • Pièce fabricant #MC6840CS

  • Fiche technique MC6840CS DataSheet

  • En stock775

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Supplier Rochester Electronics, LLC
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ProductStatus Active

Présentation

Description

The MC6840 is a programmable timer module used in microcontroller and microprocessor applications. It typically features three independent 16-bit counters, which can be used for various timing and counting operations. The module is particularly useful in applications requiring precise timing, such as generating delays, measuring time intervals, or producing PWM (pulse width modulation) signals.
Each counter within the MC6840 can be programmed for different modes of operation, including event counting, frequency measurement, and pulse generation. The device is controlled through a set of registers, which allow configuration of the operation modes, counter values, and interrupt settings.
In a typical setup, the MC6840 is interfaced with a central processing unit (CPU) via a parallel bus. It often includes features like binary and BCD (binary-coded decimal) counting, and can be configured to trigger interrupts upon reaching specific count values, enabling responsive and real-time processing.
Overall, the MC6840 serves as a versatile and reliable timing solution in embedded systems, leveraging its programmable nature to meet the needs of various timing and control applications.

Equivalent

The MC6840CS is a programmable timer module, often used in microprocessor systems for timing control. Equivalent products or alternatives that offer similar functionality include the 8253/8254 from Intel, the Z80 CTC from Zilog, and the 9513 Timer from AMD. These chips are also programmable interval timers used in various computing applications. Always check the specific requirements and datasheets for compatibility before substituting components.

Features

The MC6840 is a Programmable Timer Module (PTM) designed by Motorola, commonly used in embedded systems. Key features include:
1. Three 16-bit Counters: It has three independent 16-bit counters, which can be programmed for different modes of operation.
2. Clock Inputs: Supports both external and internal clock sources, providing flexibility for various timing applications.
3. Flexible Modes: Offers multiple modes such as event counting, pulse-width modulation, and time delay generation.
4. Programmable: Each counter is programmable for different functions, allowing complex timing tasks.
5. Interrupt Capability: Each counter can generate an interrupt request, allowing the CPU to respond to timer events.
6. Compatibility: Part of the M6800 family, it is compatible with other M6800 peripherals and microprocessors.
7. Versatility: Can be used in a wide range of applications, from simple timing tasks to complex control systems.
These features make the MC6840 a versatile choice for applications requiring precise timing and control.

Pinout

The MC6840 is a Programmable Timer Module (PTM) typically used in microprocessor systems. It comes in a 24-pin dual in-line package (DIP). The primary function of the MC6840 is to provide timing control, which includes generating time intervals, delay timing, and counting events. It has three independent 16-bit counters/timers, which can be programmed for various modes of operation, such as event counting, pulse-width modulation, and interval timing.
Key pins include:
- VCC and GND: Supply voltage and ground.
- Data Bus (D0-D7): 8-bit bidirectional data bus used for communication with the microprocessor.
- Address Bus (A0-A2): Address lines used to select internal registers.
- Control Pins: Includes CS (Chip Select), R/W (Read/Write), and E (Enable) for interfacing with the microprocessor.
- Timer Channels: Each channel has input and output pins, typically labeled TIN and TOUT, for timer operations.
These features make the MC6840 suitable for applications requiring precise timing or event counting, such as in embedded systems and industrial control.

Manufacturer

The MC6840CS is manufactured by Motorola, Inc. Motorola was an American multinational telecommunications company known for its significant contributions to the development of communication technology. Founded in 1928, the company was originally involved in producing mobile phones, semiconductors, and various electronic components. The MC6840CS is a programmable timer module used in microprocessor systems, reflecting Motorola's role in the semiconductor and microprocessor industry.
Motorola played a key role in the development of early mobile communication technology and was known for innovations in radio and electronics. Its semiconductor division, which produced the MC6840CS, was eventually spun off into a separate company called ON Semiconductor in 1999, which later became onsemi. Motorola itself split into two separate entities in 2011: Motorola Mobility (focused on consumer electronics like mobile phones) and Motorola Solutions (focused on communication solutions for government and enterprise).
Today, Motorola Solutions continues to operate independently, focusing on public safety and commercial two-way radio services, while Motorola Mobility became a part of Lenovo. The legacy of Motorola's semiconductor division continues through onsemi, which produces a wide range of semiconductor components.

Application

The MC6840CS is a programmable timer module commonly used in embedded systems and microcontroller applications. Its application areas include:
1. Industrial Automation: Used for precise timing and control tasks in machinery and process automation.
2. Communication Systems: Supports timing for data transmission and reception processes.
3. Consumer Electronics: Functions within devices that require accurate timing for operations such as displays and audio systems.
4. Automotive Systems: Assists in engine control, dashboard displays, and other automotive electronics.
5. Test and Measurement Equipment: Provides precise timing required for various test procedures and measurements.
These applications benefit from the MC6840CS's ability to handle multiple timing functions efficiently.

Package

The MC6840CS is a Programmable Timer Module typically used in microprocessor systems for timing operations. It is commonly packaged in a 28-pin Dual In-line Package (DIP), which is suitable for through-hole mounting on printed circuit boards.