AT89C205124SI ATMEL Corporation, AT89C205124SI Datasheet

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AT89C205124SI

Manufacturer Part Number
AT89C205124SI
Description
SOP20
Manufacturer
ATMEL Corporation
Datasheet

Specifications of AT89C205124SI

Date_code
04+

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AT89C205124SI
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ATMEL
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Features
1. Description
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 power-
ful 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 opera-
tion 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.
Compatible with MCS
2K Bytes of Reprogrammable Flash Memory
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
Green (Pb/Halide-free) Packaging Option
– Endurance: 1,000 Write/Erase Cycles
®
-51Products
8-bit
Microcontroller
with 2K Bytes
Flash
AT89C2051
0368G–MICRO–6/05

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