Datasheet > X84640E-2.5

X84640E-2.5

更新时间： 2024-11-23 03:15:03

品牌	Logo	应用领域
ICMIC		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
22页	564K
描述
Advanced MPS⑩ Micro Port Saver EEPROM with Block Lock⑩ Protection

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X84640E-2.5 数据手册

Preliminary Information

ICmic

This X84160/640/128 device has been acquired by

IC MICROSYSTEMS from Xicor, Inc.

IC MICROSYSTEMS

16K/64K/128K

MPS^TMEEPROM

X84160/640/128

Advanced MPS™ Micro Port Saver EEPROM with Block Lock™ Protection

FEATURES

bytewide memory control functions, takes a fraction of

the board space and consumes much less power.

•Up to 15MHz data transfer rate

Replacing serial memories, the µPort Saver provides all the

•20ns Read Access Time

serial benefits, such as low cost, low power, low voltage,

•Direct Interface to Microprocessors and

Microcontrollers

—Eliminates I/O port requirements

and small package size while releasing I/Os for more

important uses.

The µPort Saver memory outputs data within 20ns of an

active read signal. This is less than the read access time

—No interface glue logic required

—Eliminates need for parallel to serial converters

of most hosts and provides “no-wait-state” operation. This

prevents bottlenecks on the bus. With rates to

•Low Power CMOS

—1.8V–3.6V, 2.5V–5.5V and 5V 10% Versions

—Standby Current Less than 1µA

15MHz, the µPort Saver supplies data faster than

required by most host read cycle specifications. This

eliminates the need for software NOPs.

—Active Current Less than 1mA

•Byte or Page Write Capable

—32-Byte Page Write Mode

The µPort Saver memories communicate over one line of the

data bus using a sequence of standard bus read and

•New Programmable Block Lock™ Protection

—Software Write Protection

—Programmable Hardware Write Protection

write operations. This “bit serial” interface allows the

µPort Saver to work well in 8-bit, 16 bit, 32-bit, and 64-bit

systems.

•Block Lock (0, 1/4, 1/2, or all of the array)

•Typical Nonvolatile Write Cycle Time: 3ms

The X84160/640/128 provide additional data security

features through Block Lock and programmable Hardware

Write Protection. These allow some or all of the array to

be write protected by software command or by hardware.

System Configuration, Company ID, calibration information,

or other critical data can be secured against unexpected

or inadvertent program operations, leaving the remainder

of the memory available for the system or user access

•High Reliability

—100,000 Endurance Cycles

—Guaranteed Data Retention: 100 Years

•Small Package Options

—8-Lead Mini-DIP Package

—8, 14-Lead SOIC Packages

—8, 20, 28-Lead TSSOP Packages

—8-Lead XBGA Packages

A Write Protect (WP) pin prevents inadvertent writes to the

memory.

DESCRIPTION

Xicor EEPROMs are designed and tested for

applications requiring extended endurance. Inherent data

retention is greater than 100 years.

The µPort Saver memories need no serial ports or special

hardware and connect to the processor memory bus.

Replacing bytewide data memory, the µPort Saver uses

BLOCK DIAGRAM

System Connection

Internal Block Diagram MPS

H.V. GENERATION

TIMING & CONTROL

A15

µP

µC

DSP

ASIC

I/O

EEPROM

ARRAY

COMMAND

DECODE

RISC

DEC

AND

CONTROL

LOGIC

16K x 8

8K x 8

2K x 8

P0/CS

P1/CLK

P2/DI

P3/DO

Ports

Saved

Y DECODE

DATA REGISTER

Xicor, Inc. 1998 Patents Pending

7067 1.1 6/10/98 T10/C0/D3

Characteristics subject to change without notice

12 3 4 5 6 7...22

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与X84640E-2.5相关器件

型号	品牌	获取价格	描述	数据表
X84640EG	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640EG-1.8	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640EG-2.5	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640G	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640G-1.8	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640G-2.5	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640I	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640I-1.8	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640I-2.5	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl
X84640IG	ICMIC	获取价格	Advanced MPS⑩ Micro Port Saver EEPROM with Bl

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