Datasheet > AT25020

AT25020

更新时间： 2024-11-19 22:39:15

品牌	Logo	应用领域
爱特美尔 - ATMEL		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
15页	168K
描述
SPI Serial EEPROMs

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中文翻译

获取价格

数据手册

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AT25020 数据手册

Features

• Serial Peripheral Interface (SPI) Compatible

• Supports SPI Modes 0(0,0) and 3(1,1)

• Low-Voltage and Standard-Voltage Operation

– 5.0 (V_CC= 4.5V to 5.5V)

– 2.7 (V_CC= 2.7V to 5.5V)

– 1.8 (V_CC= 1.8V to 3.6V)

• 2.1 MHz Clock Rate (5V) Compatibility

• 8-Byte Page Mode

• Block Write Protection

– Protect 1/4, 1/2, or Entire Array

• Write Protect (WP) Pin and Write Disable Instructions for

Both Hardware and Software Data Protection

• Self-Timed Write Cycle (10 ms Max)

• High Reliability

SPI Serial

EEPROMs

1K (128 x 8)

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

– ESD Protection: >4000V

• Automotive Grade and Extended Temperature Devices Available

• 8-Pin PDIP and JEDEC SOIC Packages

2K (256 x 8)

4K (512 x 8)

Description

The AT25010/020/040 provides 1024/2048/4096 bits of serial electrically erasable

programmable read only memory (EEPROM) organized as 128/256/512 words of 8

bits each. The device is optimized for use in many industrial and commercial applica-

tions where low power and low voltage operation are essential. The AT25010/020/040

is available in space saving 8-pin PDIP and 8-pin JEDEC (SOIC) packages.

AT25010

AT25020

AT25040

The AT25010/020/040 is enabled through the Chip Select pin (CS) and accessed via

a 3-wire interface consisting of Serial Data Input (SI), Serial Data Output (SO), and

Serial Clock (SCK). All programming cycles are completely self-timed, and no sepa-

rate ERASE cycle is required before WRITE.

BLOCK WRITE protection is enabled by programming the status register with one of

four blocks of write protection. Separate program enable and program disable instruc-

tions are provided for additional data protection. Hardware data protection is provided

via the WP pin to protect against inadvertent write attempts. The HOLD pin may be

used to suspend any serial communication without resetting the serial sequence.

SPI, 1K Serial

E²PROM

Pin Configurations

8-Pin PDIP

Pin Name Function

Chip Select

VCC

HOLD

SCK

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

GND

VCC

8-Pin SOIC

Power Supply

Write Protect

VCC

HOLD

SCK

HOLD

Suspends Serial Input

GND

Rev. 0606E–08/98

12 3 4 5 6 7...15

中文翻译

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与AT25020相关器件

型号	品牌	获取价格	描述	数据表
AT25020_14	ATMEL	获取价格	Low-voltage and Standard-voltage Operation
AT25020-10PA-2.7C	ETC	获取价格	SERIAL EEPROM\|256X8\|CMOS\|DIP\|8PIN\|PLASTIC
AT25020-10PA-5.0C	ETC	获取价格	SERIAL EEPROM\|256X8\|CMOS\|DIP\|8PIN\|PLASTIC
AT25020-10PC	ATMEL	获取价格	SPI Serial EEPROMs
AT25020-10PC-1.8	ATMEL	获取价格	SPI Serial EEPROMs
AT25020-10PC-2.7	ATMEL	获取价格	SPI Serial EEPROMs
AT25020-10PI	ATMEL	获取价格	SPI Serial EEPROMs
AT25020-10PI-1.8	ATMEL	获取价格	SPI Serial EEPROMs
AT25020-10PI-2.7	ATMEL	获取价格	SPI Serial EEPROMs
AT25020A	ATMEL	获取价格	SPI Serial Extended TEMPERATURE EEPROMS 1K 2K 4K

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