Datasheet > CAT35C804AJATE13

CAT35C804AJATE13

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	92K
描述
4K-Bit Secure Access Serial E2PROM

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CAT35C804AJATE13 数据手册

Preliminary

CAT35C804A

4K-Bit Secure Access Serial E²PROM

FEATURES

■ Single 5V Supply

■ Commercial, Industrial and Automotive

Temperature Ranges

■ Password READ/WRITE Protection: 1 to 8 Bytes

■ Memory Pointer WRITE Protection

■ Sequential READ Operation

■ I/O Speed: 9600 Baud

–Clock Frequency: 4.9152 MHz Xtal

■ Low Power Consumption:

–Active: 3 mA

■ 256 x16 or 512 x 8 Selectable Serial Memory

■ UART Compatible Asynchronous Protocol

■ 100,000 Program/Erase Cycles

–Standby: 250 µA

■ 100 Year Data Retention

DESCRIPTION

The CAT35C804A 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

CAT35C804A uses a UART compatible asynchronous

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.

BLOCK DIAGRAM

PIN CONFIGURATION

DIP Package (P)

SOIC Package (J)

CLK

GND

ERR

GND

64-BIT ACCESS CODE

CONTROL BLOCK

ERR

GND

CLK

SERIAL

COMMUNI-

CATION

BLOCK

4K-BIT EEPROM

ARRAY

5074 FHD F01

PIN FUNCTIONS

R/W

BUFFER

ADDRESS

DECODER

Pin Name

Function

INSTRUCTION

Chip Select

DO⁽¹⁾

CLK

DI⁽¹⁾

Serial Data Output

Clock Input

INSTRUCTION

DECODER

ADDRESS

ERR

Serial Data Input

Parity Enable

STATUS

MEMORY

POINTER

ERR

V_CC

GND

Error Indication Pin

+5V Power Supply

Ground

35C804 F02

Note:

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

Characteristics subject to change without notice

Doc. No. 25043-00 2/98

12 3 4 5 6 7...14

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