Datasheet > AT25020B

AT25020B

更新时间： 2024-11-19 08:37:31

品牌	Logo	应用领域
爱特美尔 - ATMEL		存储
页数	文件大小	规格书
27页	1417K
描述
f serial electrically erasable able programmable read-only memory

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中文翻译

获取价格

数据手册

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AT25020B 数据手册

Features

• Serial Peripheral Interface (SPI) Compatible

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

– Data Sheet Describes Mode 0 Operation

• Low-voltage and Standard-voltage Operation

– V_CC= 1.8V to 5.5V

• 20 MHz Clock Rate (5V)

• 8-byte Page Mode

• Block Write Protection

SPI Serial

EEPROM

1K (128x8)

– 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 (5 ms max)

• High Reliability

– Endurance: One Million Write Cycles

– Data Retention: 100 Years

2K (256x8)

• Green (Pb/Halogen-free/Rohs Compliant) Packaging Options

• Die Sales: Wafer Form, Waffle Pack, Bumped Wafers

4K (512x8)

Description

AT25010B

AT25020B

AT25040B

The AT25010B/020B/040B provides 1024/2048/4096 bits of serial electrically eras-

able 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

applications where low-power and low-voltage operation are essential. The

AT25010B/020B/040B is available in space saving, JEDEC SOIC, UDFN, TSSOP,

XDFN and VFBGA packages.

Preliminary

The AT25010B/020B/040B is enabled through the Chip Select pin (CS) and accessed

via a three-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

separate 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 instructions

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.

Table 0-1.

Pin Configuration

SOIC, TSSOP

Pin Name

Function

V_CC

Chip Select

HOLD

SCK

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

GND

8-lead UDFN, XDFN

8-ball VFBGA

GND

V_CC

HOLD

SCK

V_CC

HOLD

SCK

Power Supply

Write Protect

GND

HOLD

Suspends Serial Input

8707B–SEEPR–3/10

Bottom View

12 3 4 5 6 7...27

中文翻译

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与AT25020B相关器件

型号	品牌	获取价格	描述	数据表
AT25020B_14	ATMEL	获取价格	SPI Serial EEPROM
AT25020B-CUL-T	MICROCHIP	获取价格	EEPROM, 256X8, Serial, PBGA8
AT25020B-MAHL-E	MICROCHIP	获取价格	EEPROM, 256X8, Serial, CMOS, PDSO8, 2 X 3 MM, 0.60 MM HEIGHT, 0.50 MM PITCH, GREEN, PLASTI
AT25020B-MAHL-T	ATMEL	获取价格	SPI Serial EEPROM
AT25020B-MEHL-T	MICROCHIP	获取价格	EEPROM, 256X8, Serial, PDSO8
AT25020B-SSHL-B	ATMEL	获取价格	SPI Serial EEPROM
AT25020B-SSHL-T	MICROCHIP	获取价格	IC EEPROM 2KBIT 20MHZ 8SOIC
AT25020B-WWU11L	MICROCHIP	获取价格	EEPROM, 256X8, Serial, CMOS, DIE
AT25020B-XHL-B	MICROCHIP	获取价格	IC EEPROM 2KBIT 20MHZ 8TSSOP
AT25020B-XHL-T	MICROCHIP	获取价格	IC EEPROM 2KBIT 20MHZ 8TSSOP

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