Description

The AT89C4051-24PC is a low-voltage, high-performance CMOS 8-bit microcontroller with 4K bytes of Flash programmable and erasable read-only memory. It is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. This microcontroller provides a highly-flexible and cost-effective solution to many embedded control applications. It has 4K bytes of Flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a five-vector, two-level interrupt architecture, a full duplex serial port, a precision analog comparator, and on-chip oscillator and clock circuitry. The AT89C4051-24PC is designed with static logic for operation down to zero frequency and supports two software-selectable power saving modes: Idle Mode and power-down mode.

Specifications and features

• Compatible with MCS®51 Products
• 4K Bytes of Reprogrammable Flash Memory with an endurance of 1,000 Write/Erase Cycles
• Operating Range: 2.7V to 6V
• Fully Static Operation: 0 Hz to 24 MHz
• Two-level Program Memory Lock
• 128 x 8-bit Internal RAM
• 15 Programmable I/O Lines
• Two 16-bit Timer/Counters
• Six Interrupt Sources
• Programmable Serial UART Channel
• Direct LED Drive Outputs
• On-chip Analog Comparator
• Low-power Idle and Power-down Modes
• Brown-out Detection
• Power-On Reset (POR)
• Green (Pb/Halide-free/RoHS Compliant) Packaging

Application Scenarios

The AT89C4051-24PC microcontroller is suitable for various applications including embedded control applications, electronics projects, robotics, home automation, industrial automation, and more. It can be used in projects that require low-voltage and high-performance microcontrollers with Flash memory and a wide range of features.

Comparison

- High-performance CMOS technology
- Compatibility with MCS®51 instruction set
- Versatile 8-bit CPU
- Cost-effective solution for embedded control applications
- 4K bytes of Flash memory
- 128 bytes of RAM
- Two 16-bit timer/counters
- Full duplex serial port
- Precision analog comparator
- Low-power modes for power saving

- Limited Flash memory capacity (4K bytes)
- Limited number of I/O lines (15)
- Limited interrupt sources (six)
- Limited programmable serial UART channel