The AT89C55-33JC is a low-power, high-performance CMOS 8-bit microcontroller unit (MCU) manufactured by Microchip Technology. It is based on the industry-standard 8051 microcontroller architecture and features 8K bytes of in-system programmable Flash memory, 256 bytes of RAM, and an on-chip oscillator.
Description:
The AT89C55-33JC is a member of the AT89C55 series, which is designed for low-power and high-performance applications. It operates at a frequency of up to 33 MHz and has a wide operating voltage range of 2.7V to 6.0V. The device is available in a 44-pin PLCC package.
Features:
- 8K bytes of in-system programmable Flash memory for storing program code and data.
- 256 bytes of on-chip RAM for data storage and manipulation.
- On-chip oscillator eliminates the need for external timing components.
- Low-power operation with power-down and standby modes to conserve energy.
- 21 I/O lines with optional push-pull or open-drain outputs.
- Three 16-bit timer/counters with three capture/compare modes.
- Eight interrupt sources with two-level priority scheme.
- On-chip debug circuitry for easy debugging and troubleshooting.
- Watchdog timer for system reliability.
- Serial communication capabilities with one USART (Universal Synchronous/Asynchronous Receiver/Transmitter).
Applications:
The AT89C55-33JC is suitable for a wide range of applications due to its low-power consumption, high performance, and versatile features. Some common applications include:
- Industrial control systems and automation.
- Portable electronic devices, such as wearables and handheld gadgets.
- Consumer electronics, such as home appliances and entertainment systems.
- Telecommunication equipment, including modems and routers.
- Medical devices and equipment.
- Automotive systems, such as engine control units and infotainment systems.
- Smart home and building automation systems.
- Data acquisition and signal processing applications.
The AT89C55-33JC's combination of low power consumption, high performance, and a wide range of features make it a popular choice for various embedded systems and applications.