X24645S8 Xicor, X24645S8 Datasheet

X24645S8

Manufacturer Part Number

X24645S8

Description

Manufacturer

Xicor

Datasheet

1.X24645S8.pdf (18 pages)

Specifications of X24645S8

Date_code

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X24645S8

Manufacturer:

XICOR

Quantity:

1 831

Company:

Meier Automation Equipment Co., Limited

Part Number:

X24645S8IZ-2.7

Manufacturer:

XICOR

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

X24645S8IZ-2.7T1

Manufacturer:

INTERSIL/PB-FREE

Quantity:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X24645S8Z

Manufacturer:

WIFI

Quantity:

428

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Preliminary Information

FUNCTIONAL DIAGRAM

FEATURES

•

2783-3.5 5/13/96 T1/C0/D0 NS

64K

Xicor, 1995, 1996 Patents Pending

2.7V to 5.5V Power Supply

Low Power CMOS

—Active Read Current Less Than 1mA

—Active Write Current Less Than 3mA

—Standby Current Less Than 1 A

Internally Organized 8192 x 8

New Programmable Block Lock Protection

—Software Write Protection

—Programmable hardware Write Protect

Block Lock (0, 1/4, 1/2, or all of the E

array)

2 Wire Serial Interface

Bidirectional Data Transfer Protocol

32 Byte Page Write Mode

—Minimizes Total Write Time Per Byte

Self Timed Write Cycle

—Typical Write Cycle Time of 5ms

High Reliability

—Endurance: 100,000 Cycles

—Data Retention: 100 Years

Available Packages

—8-Lead PDIP

—8-Lead SOIC (JEDEC)

—14-Lead SOIC (JEDEC)

—20-Lead TSSOP

Advanced 2-Wire Serial E

V CC

V SS

SCL

SDA

S 2

S 1

PROM

SLAVE ADDRESS

+COMPARATOR

START

LOGIC

STOP

X24645

PROM with Block Lock

D OUT

ACK

R/W

DESCRIPTION

The X24645 is a CMOS 65,536-bit serial E

internally organized 8192 x 8. The X24645 features a

serial interface and software protocol allowing opera-

tion on a simple two wire bus.

Two device select inputs (S

devices to share a common two wire bus.

A Write Protect Register at the highest address loca-

tion, 1FFFh, provides three new write protection

features: Software Write Protect, Block Write Protect,

and Hardware Write Protect. The Software Write

Protect feature prevents any nonvolatile writes to the

X24645 until the WEL bit in the write protect register is

set. The Block Write Protection feature allows the user

to individually write protect four blocks of the array by

programming two bits in the write protect register. The

Programmable Hardware Write Protect feature allows

the user to install the X24645 with WP tied to V

program the entire memory array in place, and then

enable the hardware write protection by programming

a WPEN bit in the write protect register. After this,

selected blocks of the array, including the write protect

as WP remains HIGH.

LOAD

ADDRESS

COUNTER

WORD

CONTROL

LOGIC

INC

START CYCLE

WRITE PROTECT

XDEC

LOGIC

Characteristics subject to change without notice

Protection

H.V. GENERATION

DATA REGISTER

CONTROL

TIMING &

256 X 256

, S

YDEC

PROM

8192 x 8 Bit

) allow up to four

2783 ILL F01

D OUT

PROM,

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