Datasheet > CAT35C804ACC

CAT35C804ACC

更新时间： 2024-01-20 12:08:57

品牌	Logo	应用领域
CATALYST		可编程只读存储器电动程控只读存储器电可擦编程只读存储器内存集成电路
页数	文件大小	规格书
14页	88K
描述
EEPROM, 256X16, Serial, CMOS

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技术参数
数据手册

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CAT35C804ACC 技术参数

生命周期：	Obsolete	包装说明：	, DIE OR CHIP
Reach Compliance Code：	unknown	风险等级：	5.84
备用内存宽度：	8	数据保留时间-最小值：	10
耐久性：	10000 Write/Erase Cycles	内存密度：	4096 bit
内存集成电路类型：	EEPROM	内存宽度：	16
字数：	256 words	字数代码：	256
最高工作温度：	70 °C	最低工作温度：
组织：	256X16	封装等效代码：	DIE OR CHIP
并行/串行：	SERIAL	电源：	5 V
认证状态：	Not Qualified	最大待机电流：	0.0001 A
子类别：	EEPROMs	最大压摆率：	0.003 mA
标称供电电压 (Vsup)：	5 V	技术：	CMOS
温度等级：	COMMERCIAL	写保护：	SOFTWARE
Base Number Matches：	1

CAT35C804ACC 数据手册

CAT35C804A

Preliminary

Seven instructions are used as control and status func-

tions:

DEVICE OPERATION

INSTRUCTIONS

DISBSY Disable Busy

ENBSY Enable Busy

The CAT35C804A instruction set includes 19 instruc-

tions.

EWEN

EWDS

NOP

Program/Erase Enable

Program/Erase Disable

No Operation

Sixinstructionsarerelatedtosecurityorwriteprotection:

DISAC

ENAC

MACC

Disable Access

Enable Access

Modify Access Code

ORG

RSR

Select Memory Organization

Read Status Register

UNPROTECTED MODE

OVMPR Override Memory Pointer Register

RMPR

WMPR

Read Memory Pointer Register

Write Memory Pointer Register

As shipped from the factory, the CAT35C804A is in the

unprotected mode. The access code length is set to 0,

and the memory pointer is at address 00 hex. While in

this mode, any portion of the E²PROM array can be read

or written to without an access code. A portion of the

memory may be protected from any write or clear

operation by setting the memory pointer to the appropri-

ate address via the WMPR (Write Memory Pointer

Six instructions are READ/WRITE/ERASE instructions:

ERAL Clear All Locations

ERASE Clear Memory Locations

READ

RSEQ

WRAL

WRITE

Read Memory

Read Sequentially

Write All

Write memory

WMPR

[address]

Note: All write instructions will automatically perform a clear before

writing data.

Figure 8. EWEN/EWDS Timing (x8 Format)

OP CODE

OP0–OP7

HIGH-Z

5076 FHD F11

Figure 9. EWEN/EWDS Timing (x16 Format)

OP CODE

OP0–OP7

HIGH-Z

5076 FHD F11

Doc. No. 25043-00 2/98

1...5 6 789 10 11...14

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