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参数资料
| 型号： | BU9883FV-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 15/28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
Datasheet
○ DEVICE ADDRESSING
? Following a START condition, the master output the device address of the slave to be accessed.
? The most significant four bits of the slave address are the “device type indentifier,” for this device, this is fixed as “1010.”
? The next three bit specify a particular device. For PORT0 access, that are set “0”, “P1”, “P0”, for PORT 1 to 3 access, that
must be set “000”.
? The last bit of the stream determines the operation to be performed. When set to “1” a read operation is selected ; when
set to “0,” a write operation is selected.
R/W set to “0” ? ? ? ? ? ? ? ? WRITE
R/W set to “1” ? ? ? ? ? ? ? ? READ
○ ACKNOWLEDGE
? Acknowledge is a software convention used to indicate successful data transfers.The master or the slave will release the
bus after transmitting eight bits.During the ninth clock cycle, the receiver will pull the SDA line LOW to Acknowledgethat
the eight bits of data has been received.
? This device will respond with an Acknowledge after recognition of a START condition and its slave address.If both the
device and a write operation have been selected, this device will respond with an Acknowledge, after the receipt of each
subsequent 8-bit word.
? In the READ mode, this device will transmit eight bit of data, release the SDA line, and monitor the line for an
Acknowledge.
? If an Acknowledge is detected, and no STOP condition is generated by the master, this device will continue to transmit the
data.
? If an Acknowledge is not detected, this device will terminate further data transmissions and await a STOP condition before
returning to the standby mode.
? This device dosen't return Acknouwedge in internal write cycle.
START CONDITION
(START BIT)
SCL
（From μ -COM）
1
8
9
SDA
（ μ -COM
OUTPUT DATA)
SDA
）
（IC OUTPUT DATA
Acknowledge Signal
(ACK Signal)
Figure 38. ACKNOWLEDGE RESPONSE FROM RECEIVER
● PORT0 access commands
○ For PORT0 access, WPB terminal must be set to “HIGH”.
S
T
A
R
T
SLAVE
ADDRESS
W
R
I
T
E
1st WORD
ADDRESS(n)
DATA(n)
S
T
O
P
SDA
LINE
1 0 1
0
0
P1 P0
WA7
WA0
D7
D0
R
/
W
A
C
K
A
C
K
WPB
Figure 39. BYTE WRITE CYCLE TIMING (PORT0)
○ This write commands operate EEPROM write sequence at address which is appointed by P1, P0.
○ When the master generates a STOP condition, this device begins the internal write cycle to the nonvolatile array.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
15/25
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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