Microchip Technology Tariff Inquiry

AT89C51-33PI

The AT89C51-33PI is a low-power, high-performance CMOS 8-bit microcontroller (MCU) with 8K bytes of in-system programmable Flash memory. It is based on the AT89C51 core, which is a widely used and well-established microcontroller architecture. The AT89C51-33PI is manufactured by Microchip Technology, a leading provider of microcontroller and analog solutions.

Description:

The AT89C51-33PI features an enhanced version of the 8051 microcontroller core, which includes additional instructions and features to improve performance and functionality. It operates with a single 8 MHz to 33 MHz crystal oscillator, making it suitable for a wide range of applications that require high-speed processing. The device is available in a 40-pin plastic dual in-line package (PDIP) or a surface-mount package (SMT).

Features:

1. 8K bytes of in-system programmable Flash memory for storing program code and data
2. 128 bytes of RAM for data storage
3. 32 programmable I/O (input/output) lines for interfacing with external devices
4. Three 16-bit timer/counters with three modes of operation each
5. Five interrupt sources with two-level priority for efficient interrupt handling
6. On-chip oscillator calibration for improved clock accuracy
7. Low-power idle and power-down modes for energy-efficient operation
8. Watchdog timer for system reliability
9. In-circuit serial programming (ICSP) for easy programming and debugging
10. On-chip CRC (cyclic redundancy check) logic for error detection

Applications:

The AT89C51-33PI is suitable for a wide range of applications due to its high performance, low power consumption, and versatile features. Some common applications include:

1. Industrial control systems: Programmable logic controllers (PLCs), motor control, and sensor interfacing
2. Consumer electronics: Appliances, toys, and gaming devices
3. Telecommunications: Modems, fax machines, and telephone systems
4. Automotive: Engine control, anti-lock braking systems (ABS), and body control modules
5. Medical equipment: Patient monitoring systems, diagnostic devices, and portable medical instruments
6. Security systems: Access control, intrusion detection, and surveillance systems
7. Data acquisition and signal processing: Measurement and control systems in various industries

The AT89C51-33PI's combination of performance, low power consumption, and ease of use make it an attractive choice for a wide range of embedded systems and applications.