Datasheet > 存储 > 其他内存集成电路> IS23SC4428-X3

IS23SC4428-X3

更新时间： 2024-01-25 11:18:47

品牌	Logo	应用领域
美国芯成 - ISSI		存储内存集成电路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时钟
页数	文件大小	规格书
12页	69K
描述
1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)

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IS23SC4428-X3 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	DIE
包装说明：	DIE	针数：	5
Reach Compliance Code：	compliant	风险等级：	5.77
Is Samacsys：	N	最大时钟频率 (fCLK)：	0.02 MHz
JESD-30 代码：	R-XUUC-N5	JESD-609代码：	e0
内存密度：	8192 bit	内存宽度：	8
功能数量：	1	端子数量：	5
字数：	1024 words	字数代码：	1000
工作模式：	SYNCHRONOUS	最高工作温度：	85 °C
最低工作温度：	-40 °C	组织：	1KX8
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	RECTANGULAR	封装形式：	UNCASED CHIP
并行/串行：	SERIAL	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	NO LEAD	端子位置：	UPPER
处于峰值回流温度下的最长时间：	30	Base Number Matches：	1

IS23SC4428-X3 数据手册

IS23SC4418

IS23SC4428

ISSI

RST

CLK

I/O

Address

Data

Command

Figure 5. Command Entry Sequence

GENERAL COMMAND DESCRIPTIONS

Read 8-Bits Data

The read 8-bit data command allows the user to specify

the address (A0-A9) of the data byte to be read from the

device. The byte address for the next output data is

automatically incremented after every eight clock pulses.

The data is output in sequential order, with the data from

address n followed by the data from address n+1.

(See Figure 6.)

If the protect bit of the corresponding byte location is

enabled, the write/erase operation will have no effect on

the content.

Write/Erase Data Byte with Protect Bit

The write/erase data byte with protect bit command

operates similarly to the write/erase data bytewith protect

bit command except that it also writes 0 to the

corresponding protect bit. After the protect bit is set to 0

(write protection enabled), it cannot be changed again.

(See Figures 8 and 9.)

Read 9-Bits Data with Protect Bit

The read 9-bit data command operates similarly to read 8-

bit data command except that the protect bit for each byte

is output after each 8-bit data and the address for the next

output data is incremented after every nine clock pulses.

(See Figure 7.)

Write Protect Bit with Data Comparison

The write protect bit with data comparison command

writes 0 to the corresponding protect bit only if the input

data and the data in the specified memory location are the

same. After the protect bit is set to 0 (write protection

enabled), it cannot be changed again. (See Figure 9.)

Write/Erase Data Byte without Protect Bit

The write/erase data byte without protect bit command

writes the new data into the specified byte location. There

are three kinds of write/erase operations which are

automatically executed by the device:

The execution of write/erase commands are terminated

after a given number of clock cycles. When the operation

is done, the device will bring the I/O state to 0. Only RST

transition from 0 to 1 can set the I/O state back to 1.

1. Erase and subsequent write if 203 clock pulses at

f < 20 KHz are applied. (See Figure 8.)

2. Write only if 103 clock pulses at f < 20 KHz are ap-

plied. This operation is only suitable if single bits of

one byte shall be changed only from 1 to 0. (See

Figure 9.)

3. Erase only if the input data = FFH and 103 clock

pulses at f < 20 KHz are applied. (See Figure 9.)

Note: Erase means 0 → 1. Write means 1 → 0.

Integrated Silicon Solution, Inc. — 1-800-379-4774

REV. A

11/01/01

1...3 4 567 8 9...12

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与IS23SC4428-X3相关器件

型号	品牌	描述	获取价格	数据表
IS23SC4428-X3I	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格
IS23SC4428-X4	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格
IS23SC4428-X4I	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格
IS23SC4428-X5	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格
IS23SC4428-X5I	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格
IS23SC4428-X6	ISSI	1-KBYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC)	获取价格

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