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AT89C4051-24PU
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 AT89C4051-24PU
 
 8-bit Microcontroller with 4K Bytes Flash
 
 
ÆǸŰ¡°Ý 4,400 ¿ø(VATÆ÷ÇÔ)
¸ðµ¨¸í AT89C4051-24PU
Á¦Á¶¿ø ATMEL [ºê·£µå ¹Ù·Î°¡±â]
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Features

• Compatible with MCS?51 Products
• 4K Bytes of Reprogrammable Flash Memory
  – Endurance: 1,000 Write/Erase Cycles
• 2.7V to 6V Operating Range
• 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


Description

The AT89C4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with 4K bytes of Flash programmable and erasable read-only memory. The device is manufactured using Atmel¡¯s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C4051 is a powerful
microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.
The AT89C4051 provides the following standard features: 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, on-chip oscillator and clock circuitry. In addition, the AT89C4051 is designed with static logic for operation down to zero frequency and supports two software-selectable power
saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator disabling all other chip functions until the next hardware reset.




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