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参数资料
| 型号： | BU9883FV-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 14/28页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 6KBIT 400KHZ SSOP16 |
| 标准包装： | 2,500 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 6K（256 x 8 x 3） |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-SSOPB |
| 包装： | 带卷 (TR) |
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BU9883FV-W
● WRITE CYCLE TIMING
SCL0
Datasheet
SDA0
D0
ACK
WRITE DATA(n)
STOP CONDITION
t WR
START CONDITION
Figure 37. WRITE CYCLE TIMING
● WRITE OPERATION
BU9883FV-W has 2K bit EEPROM in each port, there are three BANKs, 6K bit EEPROM in this device.
Each BANK EEPROM can be written through PORT0.
There is no write operation through PORT1,2,3.
When this device is accessed throgh PORT0, WPB terminal must be set to “HIGH”.
(See to Table 1)
● READ OPERATION
Each BANK EEPROM can be read through each port.
The relation ship of access port and access BANK is describe Table2.
Table 1 Table 2
Port0 BANK1 to 3 Port0
Port1 No write operation Port1
Port2 No write operation Port2
Port3 No write operation Port3
BANK1 to 3
BANK1
BANK2
BANK3
○ When EEPROM access through PORT0, P1, P0 bits in slave address appoint access BANK.(Refer to Table 3)
Table 3
P1 P0 P1,P0 bit and access BANK
0
0
No bank selected
0 1 BANK1
1 0 BANK2
1 1 BANK3
Note) When P1=0, P0=0 : this device doesn’t return Acknowlege.
○ During PORT0 access, WPB terminal must be set to “HIGH”, then PORT1 to 3 accesses will be cancelled.
In accessing from PORT1 to 3, set WPB termianl to “LOW”
● DEVICE OPERATION
○ START CONDITION
? All commands are proceeded by the start condition, which is a HIGH to LOW transition of SDA0 to 3 when SCL0 to 3 is
HIGH.
? This device continuously monitors the SDA0 to 3 and SCL0 to 3 lines for the start condition and will not respond to any
command until this condition has been met. (Refer to Figure 1)
○ STOP CONDITION
? All communications must be terminated by a stop condition, which is a LOW to HIGH transition of SDA0 to 3 when SCL0
to 3 is HIGH. (Refer to Figure 1) The stop condition initiates internal write cycle to write the data into memory array after
write sequence. The stop condition is also used to place the device into the standby power mode after read sequence. A
stop condition can only be issued after the transmitting device has released the bus.
○ NOTICE ON WRITE COMMAND
? In Write command, after transmit write data, if there are no stop condition, EEPROM data don’t change.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
14/25
TSZ02201-0R2R0G100420-1-2
31.AUG.2012 Rev.001
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相关代理商/技术参数 |
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| BU9888FV-W | 制造商:ROHM 制造商全称:Rohm 功能描述:High Reliability Serial EEPROMs |
| BU9888FV-WE2 | 制造商:ROHM 制造商全称:Rohm 功能描述:High Reliability Serial EEPROMs |
| BU9889GUL-W | 制造商:ROHM 制造商全称:Rohm 功能描述:WL-CSP EEPROM family I2C BUS |
| BU9889GUL-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 8Kb 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 |
| BU9890GUL-W | 制造商:ROHM 制造商全称:Rohm 功能描述:Silicon Monolithic Integrated Circuit |
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