X24640PI datasheet(1/17 Pages) XICOR

부품명	X24640PI

상세설명	400KHz 2-Wire Serial E 2 PROM with Block Lock

PDF	17 Pages

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제조업체	XICOR [Xicor Inc.]

홈페이지	http://www.xicor.com

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400KHz 2-Wire Serial E2PROM with Block LockTM

64K

8K x 8 Bit

©Xicor, 1995, 1996 Patents Pending

Characteristics subject to change without notice

7038-1.2 4/25/97 T0/C2/D0 SH

1

X24640

FUNCTIONAL DIAGRAM

FEATURES

• Save Critical Data with Programmable

Block Lock Protection

—Block Lock (0, 1/4, 1/2, or all of E2PROM Array)

—Software Program Protection

—Programmable Hardware Write Protect

• In Circuit Programmable ROM Mode

• 400KHz 2-Wire Serial Interfac

—Schmitt Trigger Input Noise Suppression

—Output Slope Control for Ground Bounce

Noise Elimination

• Longer Battery Life With Lower Power

—Active Read Current Less Than 1mA

—Active Program Current Less Than 3mA

—Standby Current Less Than 1

µA

• 1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V

Power Supply Versions

• 32 Word Page Write Mode

—Minimizes Total Write Time Per Word

• Internally Organized 8K x 8

• Bidirectional Data Transfer Protocol

• Self-Timed Write Cycle

—Typical Write Cycle Time of 5ms

• High Reliability

—Endurance: 100,000 Cycles

—Data Retention: 100 Years

• 8-Lead SOIC

• 20-Lead TSSOP

• 8-Lead PDIP

DESCRIPTION

The X24640 is a CMOS Serial E2PROM, internally

organized 8K x 8. The device features a serial inter-

face and software protocol allowing operation on a

simple two wire bus. The bus operates at 400 KHz all

the way down to 1.8V.

Three device select inputs (S0–S2) allow up to eight

devices to share a common two wire bus.

A Write Protect Register at the highest address loca-

tion, FFFFh, provides three write protection features:

Software Write Protect, Block Lock Protect, and

Programmable Hardware Write Protect. The Software

Write Protect feature prevents any nonvolatile writes to

the device until the WEL bit in the Write Protect

Register is set. The Block Lock Protection feature

gives the user four array block protect options, set by

programming two bits in the Write Protect Register.

The Programmable Hardware Write Protect feature

allows the user to install the device with WP tied to

VCC, program and Block Lock the desired portions of

the memory array in circuit, and then enable the In

Circuit Programmable ROM Mode by programming the

WPEN bit in the Write Protect Register. After this, the

Block Locked portions of the array, including the Write

Protect Register itself, are permanently protected from

being erased.

SERIAL E2PROM DATA

AND ADDRESS (SDA)

SCL

S2

S1

S0

WP

COMMAND

DECODE

AND

CONTROL

LOGIC

BLOCK LOCK AND

WRITE PROTECT

CONTROL LOGIC

DEVICE

SELECT

LOGIC

WRITE

PROTECT

REGISTER

PAGE

DECODE

LOGIC

DATA REGISTER

Y DECODE LOGIC

2K x 8

4K x 8

WRITE VOLTAGE

CONTROL

SERIAL E2PROM

ARRAY

8K x 8

7038 FM 01

유사한 부품 번호 - X24640PI

제조업체	부품명	데이터시트	상세설명
Xicor Inc.	X24641	66Kb / 13P	400 KHz 2-Wire Serial E 2 PROM
	X24641S8	66Kb / 13P	400 KHz 2-Wire Serial E 2 PROM
	X24641S8-1.8	66Kb / 13P	400 KHz 2-Wire Serial E 2 PROM
	X24641S8-2.5	66Kb / 13P	400 KHz 2-Wire Serial E 2 PROM
	X24641S8I	66Kb / 13P	400 KHz 2-Wire Serial E 2 PROM

More results

유사한 설명 - X24640PI

제조업체	부품명	데이터시트	상세설명
Xicor Inc.	X24128	87Kb / 17P	400KHz 2-Wire Serial E2PROM with Block Lock
	X24320	85Kb / 17P	400KHz 2-Wire Serial E2PROM with Block Lock
	X24325	79Kb / 17P	Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protection
	X24645	84Kb / 18P	Advanced 2-Wire Serial E 2 PROM with Block Lock TM Protection
	X25128	77Kb / 15P	SPI Serial E 2 PROM with Block Lock TM Protection
	X25642	76Kb / 16P	Advanced SPI Serial E 2 PROM with Block Lock TM Protection
	X24257	502Kb / 19P	400kHz 2-Wire Serial EEPROM with Block Lock
IC MICROSYSTEMS	X25170	131Kb / 15P	SPI Serial E 2 PROM with Block Lock ??Protection
	X24320	302Kb / 17P	400KHz 2-Wire Serial E2PROM with Block Lock
	X25256	488Kb / 17P	5MHz SPI Serial E 2 PROM with Block Lock ??Protection

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X24640PI 데이터시트(PDF) 1 Page - Xicor Inc.

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유사한 부품 번호 - X24640PI

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