Datasheet > BU9832GUL-WE2

BU9832GUL-WE2

更新时间： 2024-01-11 19:09:58

品牌	Logo	应用领域
罗姆 - ROHM		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
页数	文件大小	规格书
19页	504K
描述
WL-CSP EEPROM family SPI BUS

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技术参数
数据手册

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BU9832GUL-WE2 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	BGA
包装说明：	ROHS COMPLIANT, VCSP-8	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.32.00.51	Factory Lead Time：	11 weeks
风险等级：	5.75	最大时钟频率 (fCLK)：	5 MHz
数据保留时间-最小值：	40	耐久性：	1000000 Write/Erase Cycles
JESD-30 代码：	R-PBGA-B8	长度：	2.09 mm
内存密度：	8192 bit	内存集成电路类型：	EEPROM
内存宽度：	8	功能数量：	1
端子数量：	8	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：	PLASTIC/EPOXY
封装代码：	VFBGA	封装等效代码：	BGA8,3X3,20
封装形状：	RECTANGULAR	封装形式：	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
并行/串行：	SERIAL	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	2/5 V	认证状态：	Not Qualified
座面最大高度：	0.55 mm	串行总线类型：	SPI
最大待机电流：	0.000002 A	子类别：	EEPROMs
最大压摆率：	0.003 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	1.8 V	标称供电电压 (Vsup)：	2.5 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子形式：	BALL
端子节距：	0.5 mm	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	1.85 mm
最长写入周期时间 (tWC)：	5 ms	写保护：	HARDWARE
Base Number Matches：	1

BU9832GUL-WE2 数据手册

Technical Note

BU9832GUL-W

●Features

○Status registers

This IC has status registers. The status registers are of 8 bits and express the following parameters.

BP0 and BP1 can be set by write status register command. These 2 bits are memorized into the EEPROM, therefore are

valid even when power source is turned off.

Rewrite characteristics and data hold time are same as characteristics of the EEPROM.

WEN can be set by write enable command and write disable command. WEN becomes write disable status when power

―

source is turned off. R/B is for write confirmation, therefore cannot be set externally.

The value of status register can be read by read status command.

●Status registers

Product number

bit 7

bit 6

bit 5

bit 4

bit 3

BP1

bit 2

BP0

bit 1

bit 0

―

BU9832GUL-W

WPEN

WEN

R/B

Memory

location

bit

Function

Contents

WP pin enable / disable designation bit

WPEN=0=invalid

WPEN=1=valid

This enables / disables the functions of WP

pin.

WPEN EEPROM

This designates the write disable area of

EEPROM. Write designation areas of product

numbers are shown below.

BP1

EEPROM

BP0

EEPROM write disable block designation bit

Write and write status register write

enable / disable status confirmation bit

WEN

R^―/B

WEN=0=prohibited

WEN=1=permitted

Write cycle status (READY / BUSY) status

confirmation bit

R/B =0=READY

R/B =1=BUSY

●Write disable block setting

BP1

BP0

Write disable block

None

300h-3FFh

200h-3FFh

000h-3FFh

○WP pin

By setting WP =LOW, write command is prohibited. As for BU9832GUL-W when WPEN bit is set “1”, the WP pin

functions become valid. And the write command to be disabled at this moment is WRSR.

However, when write cycle is in execution, no interruption can be made.

Product number

BU9832GUL-W

WRSR

WRITE

Prohibition possible but WPEN bit “1”

Prohibition impossible

○HOLD pin

By HOLD pin, data transfer can be interrupted. When SCK=”1”, by making HOLD from “1” into”0”, data transfer to

EEPROM is interrupted. When SCK = “0”, by making HOLD from “0” into “1”, data transfer is restarted.

www.rohm.com

2010.10 - Rev.A

7/18

1...4 5 678 9 10...19

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