X25041PI-2.7 Datasheet_PDF文件下载_芯片资料查询

X25041

4K

X25041

SPI Serial E

2

PROM with Block Lock

TM

Protection

DESCRIPTION

512 x 8 Bit

FEATURES

鈥?/div>

1MHz Clock Rate

SPI Modes (0,1 & 1,0)

512 X 8 Bits

鈥? Byte Page Mode

Low Power CMOS

鈥?50

碌

A Standby Current

鈥?mA Active Current

2.7V To 5.5V Power Supply

Block Lock Protection

鈥擯rotect 1/4, 1/2 or all of E

2

PROM Array

Built-in Inadvertent Write Protection

鈥擯ower-Up/Power-Down protection circuitry

鈥擶rite Latch

鈥擶rite Protect Pin

Self-Timed Write Cycle

鈥?ms Write Cycle Time (Typical)

High Reliability

鈥擡ndurance: 100,000 cycles per byte

鈥擠ata Retention: 100 Years

鈥擡SD protection: 2000V on all pins

8-Lead PDlP Package

8-Lead SOIC Package

The X25041 is a CMOS 4096-bit serial E

2

PROM, inter-

nally organized as 512 x 8. The X25041 features a Serial

Peripheral Interface (SPI) and software protocol allow-

ing 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 con-

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

number of devices to share the same bus.

The X25041 also features two additional inputs that

provide the end user with added flexibility. By asserting

the

HOLD

input, the X25041 will ignore transitions on its

inputs, thus allowing the host to service higher priority

interrupts. The

WP

input can be used as a hardwire input

to the X25041 disabling all write attempts, thus providing

a mechanism for limiting end user capability of altering

the memory.

The X25041 utilizes Xicor鈥檚 proprietary Direct Write鈩?/div>

cell, providing a minimum endurance of 100,000 cycles

per byte and a minimum data retention of 100 years.

FUNCTIONAL DIAGRAM

STATUS

REGISTER

WRITE

PROTECT

LOGIC

X DECODE

LOGIC

32

SO

SI

SCK

CS

HOLD

COMMAND

DECODE

AND

CONTROL

LOGIC

32

512 BYTE

ARRAY

32 X 32

64

64 X 32

WP

WRITE

CONTROL

AND

TIMING

LOGIC

4

8

Y DECODE

DATA REGISTER

6556 FHD F01

Characteristics subject to change without notice

Direct Write鈩?and Block Lock鈩?Protection is a trademark of Xicor, Inc.

漏Xicor, Inc. 1995, 1996 Patents Pending

6556-1.2 6/10/96 T6/C1/D0 NS

1

型号

版本

描述

厂商

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