Datasheet > AT89C2051X2

AT89C2051X2

更新时间： 2024-11-18 04:49:59

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存微控制器
页数	文件大小	规格书
19页	205K
描述
8-bit Microcontroller with 2K Bytes Flash

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AT89C2051X2 数据手册

Features

• Compatible with MCS^®-51 Products

• 2K Bytes of Reprogrammable Flash Memory

– Endurance: 1,000 Write/Erase Cycles

• 2.7V to 6V Operating Range

• Fully Static Operation: 0 Hz to 16 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

8-bit

Microcontroller

with 2K Bytes

Flash

• On-chip Analog Comparator

• Low-power Idle and Power-down Modes

• 6 Clocks per Machine Cycle Operation

Description

The AT89C2051x2 is a low-voltage, high-performance CMOS 8-bit microcontroller

with 2K bytes of Flash programmable memory. The device is manufactured using

Atmel’s high-density nonvolatile memory technology and is compatible with the indus-

try-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with Flash on

a monolithic chip, the Atmel AT89C2051x2 is a powerful microcomputer which pro-

vides a highly-flexible and cost-effective solution to many embedded control

applications.

AT89C2051x2

The AT89C2051x2 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 AT89C2051x2 is designed with static logic for oper-

ation 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.

Furthermore, the AT89C2051x2 executes one machine cycle in 6 clock cycles, provid-

ing twice the speed of the AT89C2051 device. The user gains the flexibility to divide

input frequency crystals by 2 (using less expensive components), while keeping the

same CPU power. Alternatively, the user can save on power consumption while keep-

ing the same CPU power (oscillator power saving).

Pin Configuration

PDIP/SOIC

RST/VPP

(RXD) P3.0

(TXD) P3.1

XTAL2

20 VCC

19 P1.7

18 P1.6

17 P1.5

XTAL1

16 P1.4

15 P1.3

14 P1.2

(INT0) P3.2

(INT1) P3.3

(TO) P3.4

(T1) P3.5

13 P1.1 (AIN1)

12 P1.0 (AIN0)

11 P3.7

GND 10

Rev. 3285B–MICRO–10/03

12 3 4 5 6 7...19

中文翻译

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与AT89C2051X2相关器件

型号	品牌	获取价格	描述	数据表
AT89C2051X2-12PC	MICROCHIP	获取价格	Microcontroller,
AT89C2051X2-12PI	MICROCHIP	获取价格	Microcontroller,
AT89C2051X2-12SC	MICROCHIP	获取价格	Microcontroller,
AT89C2051X2-12SI	MICROCHIP	获取价格	Microcontroller
AT89C2051X2-16PC	ATMEL	获取价格	8-bit Microcontroller with 2K Bytes Flash
AT89C2051X2-16PI	ATMEL	获取价格	8-bit Microcontroller with 2K Bytes Flash
AT89C2051X2-16PJ	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 16MHz, CMOS, PDIP20, 0.300 INCH, PLASTIC, MS-001AD, DIP-20
AT89C2051X2-16PL	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 16MHz, CMOS, PDIP20, 0.300 INCH, PLASTIC, MS-001AD, DIP-20
AT89C2051X2-16SC	ATMEL	获取价格	8-bit Microcontroller with 2K Bytes Flash
AT89C2051X2-16SI	ATMEL	获取价格	8-bit Microcontroller with 2K Bytes Flash

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