Datasheet > CAT35C704PTE13

CAT35C704PTE13

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
CATALYST		可编程只读存储器
页数	文件大小	规格书
14页	88K
描述
4K-Bit Secure Access Serial E2PROM

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数据手册

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CAT35C704PTE13 数据手册

Preliminary

CAT35C704

4K-Bit Secure Access Serial E²PROM

FEATURES

■ Operating Frequency: DC–3MHz

■ Single 5V Supply

■ Low Power Consumption:

–Active: 3 mA

■ Password READ/WRITE Protection: 1 to 8 Bytes

■ Memory Pointer WRITE Protection

■ Sequential READ Operation

–Standby: 250 µA

■ 100,000 Program/Erase Cycles

■ 100 Year Data Retention

■ 256 x16 or 512 x 8 Selectable Serial Memory

■ High Speed Synchronous Protocol

■ Commercial, Industrial and Automotive

Temperature Ranges

DESCRIPTION

The CAT35C704 is a 4K-bit Serial E²PROM that safe-

guards stored data from unauthorized access by use of

a user selectable (1 to 8 byte) access code and a

movablememorypointer. Twooperatingmodesprovide

unprotected and password-protected operation allow-

ing the user to configure the device as anything from a

ROM to a fully protected no-access memory. The

CAT35C704 uses a unique serial-byte synchronous

communication protocol and has a Sequential Read

feature where data can be sequentially clocked out of

the memory array. The device is available in 8-pin DIP

or 16-pin SOIC packages.

PIN CONFIGURATION

BLOCK DIAGRAM

DIP Package (P)

SOIC Package (J)

CLK

GND

64-BIT ACCESS CODE

ERR

GND

CONTROL BLOCK

ERR

GND

SERIAL

CLK

COMMUNI-

CATION

BLOCK

4K-BIT EEPROM

ARRAY

R/W

ADDRESS

5074 FHD F01

BUFFER

DECODER

PIN FUNCTIONS

INSTRUCTION

Pin Name

Function

INSTRUCTION

DECODER

ADDRESS

Chip Select

ERR

DO⁽¹⁾

CLK

DI⁽¹⁾

Serial Data Output

Clock Input

STATUS

MEMORY

POINTER

Serial Data Input

Parity Enable

ERR

V_CC

GND

Error Indication Pin

+5V Power Supply

Ground

35C704 F02

Note:

(1) DI, DO may be tied together to form a common I/O.

Doc. No. 25045-00 2/98

Characteristics subject to change without notice

12 3 4 5 6 7...14

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