Datasheet > X25256B

X25256B

更新时间： 2024-11-23 03:54:11

品牌	Logo	应用领域
ICMIC		可编程只读存储器
页数	文件大小	规格书
17页	488K
描述
5MHz SPI Serial E 2 PROM with Block Lock ⑩ Protection

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

X25256B 数据手册

This X25256 device has been acquired by

IC MICROSYSTEMS from Xicor; Inc.

Preliminary Information

256K

32K x 8 Bit

X25256

5MHz SPI Serial E ²PROM with Block Lock ^™Protection

FEATURES

•Packages —8-

lead XBGA

•5MHz Clock Rate

•Low Power CMOS

—8-lead SOIC (JEDEC, EIAJ)

—20-lead TSSOP

—<1µA standby current

—<5mA active current

DESCRIPTION

•2.5V To 5.5V Power Supply

•SPI Modes (0,0 & 1,1)

The X25256 is a CMOS 256K-bit serial E

PROM, inter-

•32K X 8 Bits

—64 byte page mode

nally organized as 32K x 8. The X25256 features a

Serial Peripheral Interface (SPI) and software protocol

^™Protection

—Protect first page, first 2 pages, first 4 pages,

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

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

•Block Lock

first 8 pages, 1/4, 1/2 or all of E²

•Programmable Hardware Write Protection

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

controlled through a chip select (CS) input, allowing any

PROM array

number of devices to share the same bus.

—In-circuit programmable ROM mode

•Built-In Inadvertent Write Protection

The X25256 also features two additional inputs that

provide the end user with added flexibility. By asserting

—Power-up/down protection circuitry

—Write enable latch

the HOLD input, the X25256 will ignore transitions on its

inputs, thus allowing the host to service higher priority

—Write protect pin

•Self-Timed Write Cycle

interrupts. The WP input can be used as a hardwire

input to the X25256 disabling all write attempts to the

—5ms write cycle time (typical)

•High Reliability

status register, thus providing a mechanism for limiting

end user capability of altering first page, first 2 pages, 4

—Endurance: 100,000 cycles

—Data Retention: 100 Years

—ESD protection: 2000V on all pins

pages, 8 pages, 0, 1/4, 1/2 or all of the memory.

FUNCTIONAL DIAGRAM

Write

Protect

Status

Logic

32K Byte

Array

128

128 X 512

Command

And

Decode

128

X-Decode

Protect

Logic

SCK

128 X 512

248 X 512

Control

Logic

HOLD

248

256 X 512

4 X 512

2 X 512

1 X 512

Write

Control

And

Timing

Logic

Y Decode

Data Register

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

Characteristics subject to change without notice. 1 of 17

www.icmic.com

12 3 4 5 6 7...17

中文翻译

下载PDF

与X25256B相关器件

型号	品牌	获取价格	描述	数据表
X25256B-2.5	XICOR	获取价格	EEPROM, 32KX8, Serial, CMOS, PBGA8, XBGA-8
X25256BG	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256BI	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256BI-2.5T1	XICOR	获取价格	EEPROM, 32KX8, Serial, CMOS, PBGA8, XBGA-8
X25256BIG	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256S8	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256S8-2.5	XICOR	获取价格	EEPROM, 32KX8, Serial, CMOS, PDSO8, PLASTIC, SOIC-8
X25256S8G	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256S8I	ICMIC	获取价格	5MHz SPI Serial E 2 PROM with Block Lock ⑩ Pr
X25256S8I-2.5	XICOR	获取价格	EEPROM, 32KX8, Serial, CMOS, PDSO8, PLASTIC, SOIC-8

与X25256B相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

36
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

28
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

56
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

53

产品中心

服务支持

精选活动

关于我们

帮助中心

X25256B

X25256B 数据手册

与X25256B相关器件

与X25256B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

X25256B

X25256B 数据手册

与X25256B相关器件

与X25256B相关文章

您还可以找

您在本页遇到什么问题？