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参数资料
| 型号： | BU9880GUL-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 64KBIT 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： | 64K (8K 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) |
BU9880GUL-W (64Kbit)
○ Notes on write cycle continuous input
Datasheet
S
T
A
R
T
SLAVE
ADDRESS
W
R
I
T
E
WORD
ADDRESS(n)
DATA(n)
DATA(n+31)
S
T
O
P
At STOP (stop bit)
write starts.
SDA
LINE
1 0 1 0 A2 A1 A0
WA
7
WA
0
D7
D0
D0
1 0 1 0
R A
/ C
W K
A
C
K
A
C
K
A
C
K
Next command
tWR(maximum ： 5ms)
Command is not accepted
for this period.
Figure 33. Page write cycle
○ Notes on page write cycle
List of numbers of page write
Product number Number of pages
○ Internal address increment
Page write mode
BU9880GUL-W
32Byte
WA12 -----
WA5
WA4
WA3
WA2
WA1 WA0
The above numbers are maximum bytes for respective
types. Any bytes below these can be written.
0 -----
0 -----
0 -----
0
0
0
0
0
0
0
0
0
0
0
0
0 0
0 1
1 0
increment
In the case of BU9880GUL-W, 1 page = 32bytes,
but the page write cycle write time is 5ms at maximum
for 32byte bulk write. It does not stand 5ms
at maximum × 32byte = 160ms(Max.).
1Eh
0
0
0
-----
-----
-----
0
0
0
1
1
0
1
1
0
1
1
0
1
1
0
0
1
0
Significant bit is fixed.
No digit up
For example, when it is started from address 1Eh,
therefore, increment is made as below,
1Eh → 1Fh → 00h → 01h ???
* 1Eh ??? 16 in hexadecimal, therefore,
00011110 becomes a binary number.
○ Write protect (WP) terminal
? Write protect (WP) function
When WP terminal is set Vcc (H level), data rewrite of all address is prohibited. When it is set GND (L level),
data rewrite of all address 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
14/22
TSZ02201-0R2R0G100340-1-2
21.AUG.2012 Rev.001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BU9881 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:I2C Serial EEPROM |
| BU9881F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:I2C Serial EEPROM |
| BU9882FV-W | 制造商:ROHM 制造商全称:Rohm 功能描述:EDID Memory (For display) |
| BU9882FV-WE2 | 功能描述:电可擦除可编程只读存储器 2K BIT 128 X 8 X 2 3.3V/5V 14PIN 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 |
| BU9882F-W | 制造商:ROHM 制造商全称:Rohm 功能描述:EDID Memory (For display) |
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