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参数资料
| 型号： | BU9844GUL-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 14/29页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 16KBIT 2WIRE VCSP50L1 |
| 标准包装： | 3,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 16K (2K x 8) |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 6-UFBGA，CSPBGA |
| 供应商设备封装： | VCSP50L1 |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
BU9844GUL-W (16Kbit)
2. Notes on write cycle continuous input
At STOP (stop bit),
Write starts.
Datasheet
SDA
LINE
S
T
A
R
T
SLAVE
ADDRESS
1 0 1 0 P2 P1 P0
W
R
I
T
E
WA
7
WORD
ADDRESS(n)
WA
0
D7
DATA(n)
D0
DATA(n+15)
D0
S
T
O
P
S
T
A
R
T
1 0 1 0
R A
/ C
W K
A
C
K
A
C
K
A
C
K
Next command
tWR (maximum : 5ms)
Note)
Figure 34. Page write cycle
Command is not accepted for this period.
1
0 1 0 P2 P1 P0
Figure 35. Difference of each type of slave address
3. Notes on page write cycle
○ Internal address increment
Page write mode
List of numbers of page write
WA7 -----
WA4
WA3
WA2
WA1
WA0
Number of Pages
16Byte
0 -----
0
0
0
0
0
Increment
0 -----
0
0
0
0
0
Product number
BU9844GUL-W
0 -----
0
0
0
0
0
The above numbers are maximum bytes for respective types.
Any types below these can be written.
1page = 16 bytes, but the page write cycle write time is 5ms at maximum
0Eh
0
0
0
-----
-----
-----
0
0
0
1
1
0
1
1
0
1
1
0
0
1
0
for 16byte bulk write.
It does not stand 5ms at maximum x 16 bytes = 80ms (Max.).
Significant bit is fixed.
No digit up
For example, when it is started from address 0Eh,
therefore, increment is made as below,
0Eh → 0Fh → 00h → 01h ---, which please note.
*0Eh --- 0E in hexadecimal, therefore, 00001110
becomes a binary number.
4. Write protect terminal (WP)
(1) Write protect function
When WP terminal is set Vcc (H level), data rewrite of all addresses is prohibited. When it is set GND (L level), data
rewrite of all addresses is enabled. Be sure to connect this terminal to Vcc or GND, or control it to H level or L level.
Do not use it open.
At extremely low voltage at power ON/OFF, by setting the WP terminal “H”, mistake write can be prevented.
During tWR, set the WP terminal always to “L”. If it is set “H”, write is forcibly terminated.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
14/26
TSZ02201-0R2R0G100470-1-2
17.Sep.2013 Rev.002
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BU9847GUL-W | 制造商:ROHM 制造商全称:Rohm 功能描述:WL-CSP EEPROM family I2C BUS |
| BU9847GUL-W_10 | 制造商:ROHM 制造商全称:Rohm 功能描述:WL-CSP EEPROM family I2C BUS |
| BU9847GUL-WE2 | 功能描述:电可擦除可编程只读存储器 电可擦除可编程只读存储器 Serial-2Wire 4Kb RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| BU98570CH-3BW | 制造商:ROHM 制造商全称:Rohm 功能描述:65,536 Colors 98RGB x 70 STN LCD control driver |
| BU98582CH-3BW | 制造商:ROHM 制造商全称:Rohm 功能描述:65,536 Colors 104RGB x 82 STN LCD control driver |
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