Datasheet > X25170S8I-2.5T3

X25170S8I-2.5T3

更新时间： 2024-11-20 09:21:19

品牌	Logo	应用领域
XICOR		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光电二极管
页数	文件大小	规格书
13页	474K
描述
EEPROM, 2KX8, Serial, CMOS, PDSO8, PLASTIC, SOIC-8

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中文翻译

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数据手册

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X25170S8I-2.5T3 数据手册

APPLICATION NOTE

A V A I L A B L E

AN61

Recommended System Management

Alternative: X5163

16K

2K x 8 Bit

X25170

SPI Serial EEPROM with Block Lock^™Protection

FEATURES

DESCRIPTION

• 5MHz clock rate

• SPI modes (0,0 & 1,1)

• 2K X 8 bits

—32-byte page mode

• Low power CMOS

—<1µA standby current

—<5mA active current

• 2.5V To 5.5V power supply

• Block lock protection

The X25170 is a CMOS 16384-bit serial EEPROM,

internally organized as 2K x 8. The X25170 features a

Serial Peripheral Interface (SPI) and software protocol,

allowing operation on a simple three-wire bus. The bus

signals are a clock input (SCK) plus separate data in

(SI) and data out (SO) lines. Access to the device is

controlled through a chip select (CS) input, allowing

any number of devices to share the same bus.

The X25170 also features two additional inputs that

provide the end user with added ﬂexibility. By asserting

the HOLD input, the X25170 will ignore transitions on

its inputs, thus allowing the host to service higher pri-

ority interrupts. The WP input can be used as a hard-

wire input to the X25170 (disabling all write attempts to

the status register), thus providing a mechanism for

limiting end user capability of altering 0, 1/4, 1/2 or all

of the memory.

—Protect 1/4, 1/2 or all of EEPROM array

• Built-in inadvertent write protection

—Power-up/power-down protection circuitry

—Write enable latch

—Write protect pin

• Self-timed write cycle

—5ms write cycle time (typical)

• High reliability

—Endurance: 1,000,000 cycles

—Data retention: 100Years

—ESD protection: 2000V on all pins

• 8-lead SOIC package

The X25170 utilizes Xicor’s proprietary Direct Write^™

cell, providing a minimum endurance of 1,000,000

cycles and a minimum data retention of 100 years.

BLOCK DIAGRAM

Write

Protect

Logic

Status

X Decode

Logic

2K Byte

Array

16 X 256

SCK

Command

Decode

and

Control

Logic

HOLD

32 X 256

Write

Control

and

Timing

Logic

Y Decode

Data Register

Direct Write^™and Block Lock^™Protection is a trademark of Xicor, Inc.

REV 1.3 12/14/00

Characteristics subject to change without notice. 1 of 13

www.xicor.com

12 3 4 5 6 7...13

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