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參數(shù)資料
| 型號： | BU9881F |
| 英文描述： | I2C Serial EEPROM |
| 中文描述： | I2C串行EEPROM的 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 142K |
| 代理商： | BU9881F |
1. Controlling the mode pin (pin 1) from the main controller
As shown in the figure below, the mode pin can be controlled through the software to switch from the I
2
C bus mode
to the transmit-only mode.
11
Standard ICs
BU9881 / BU9881F
Slave address
Read
data
Read
data
ACK signal (output)
ACK signal (input)
SCL
Start condition
Stop condition
SDA
1
1
1
0
0
0
0
0
D7
D7
D0
D0
n + a
MODE “L”
VCLK Don't Care
Fig. 15 Sequential read cycle
(Example: For current reading)
Set HIGH for 2
μ
s or longer
Set LOW for 2
μ
s or longer
MODE
SCL
I C MODE
TRANSMIT ONLY MODE
I C MODE
Fig. 16
8) If the ACK signal LOW following D0 is detected and no stop condition is sent from the master (microcomputer)
side, reading can be continued sequentially to the data of the next word address.
[The entire 1 kilobit (128 words) can be read.]
9) To terminate this command, HIGH is input for the ACK signal following any D0, and the SDA signal rises at the
HIGH state of the SCL signal (stop condition), terminating the command.
10) Sequential reading is also possible with random reading.
11) With earlier ICs, switching from the DDC1 (transmit-only) mode to the DDC2 (I
2
C bus) mode was possible only
by turning off the power supply and then turning it on again. With the BU9881 / BU9881F, however, switching
2
C bus mode and the transmit-only mode can be done by controlling the mode pin (pin 1).
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BU9882FV-W | 制造商:ROHM 制造商全稱:Rohm 功能描述:EDID Memory (For display) |
| BU9882FV-WE2 | 功能描述:電可擦除可編程只讀存儲器 2K BIT 128 X 8 X 2 3.3V/5V 14PIN RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| BU9882F-W | 制造商:ROHM 制造商全稱:Rohm 功能描述:EDID Memory (For display) |
| BU9882F-WE2 | 功能描述:電可擦除可編程只讀存儲器 2K BIT 128 X 8 X 2 3.3V/5V 14PIN RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| BU9882-W | 制造商:ROHM 制造商全稱:Rohm 功能描述:EDID Memory (For display) |
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