AT89C2051-24PU Microcontroller with 2K bytes Flash

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K bytes of Flash programmable and erasable read-only memory (PEROM). 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 AT89C2051 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89C2051 provides the following standard features: 2K 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 AT89C2051 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.

Description:

Green (Pb/Halide-free) Packaging Option

Low-power Idle and Power-down Modes

On-chip Analog Comparator

Direct LED Drive Outputs

Programmable Serial UART Channel

Six Interrupt Sources

Two 16-bit Timer/Counters

15 Programmable I/O Lines

128 x 8-bit Internal RAM

Two-level Program Memory Lock

Fully Static Operation: 0 Hz to 24 MHz

2.7V to 6V Operating Range

Endurance:1,000 Write/Erase Cycles

2K Bytes of Reprogrammable Flash Memory

Compatible with MCS(R)-51Products

Features:

8-bit Microcontroller with 2K Bytes Flash AT89C2051

AT89C2051-24PU

AT89C2051-24PU
2.7-Volt, 80C31 Microcontroller with 2K bytes Flash,
20-Pin Package