參數(shù)資料
型號(hào)： BR24L32
廠商： Rohm CO.,LTD.
英文描述： 4k】8 bit electrically erasable PROM
中文描述： 4K的】8位電可擦除可編程ROM
文件頁(yè)數(shù)： 8/26頁(yè)
文件大小： 443K
代理商： BR24L32
BR24L32-W / BR24L32F-W / BR24L32FJ-W / BR24L32FV-W
Memory ICs
8/25
z
Device operation
1) Start condition (Recognition of start bit)
All commands are proceeded by the start condition, which is a HIGH to LOW transition of SDA when SCL is HIGH.
The device continuously monitors the SDA and SCL lines for the start condition and will not respond to any command
until this condition has been met. (See Fig.4 SYNCHRONOUS DATA TIMING)
2) Stop condition (Recognition of stop bit)
All communications must be terminated by a stop condition, which is a LOW to HIGH transition of SDA when SCL is
HIGH. (See Fig.4 SYNCHRONOUS DATA TIMING)
3) Notice about write command
In the case that stop condition is not executed in WRITE mode, transferred data will not be written in a memory.
4) Device addressing
Following a START condition, the master output the slave address to be accessed.
The most significant four bits of the slave address are the “device type identifier”, for this device it is fixed as “1010”.
The next three bit (device address) identify the specified device on the bus.
The device address is defined by the state of A0, A1 and A2 input pins. This IC works only when the device address
inputted from SDA pin correspond to the state of A0, A1 and A2 input pins. Using this address scheme, up to eight
devices may be connected to the bus. The last bit of the stream (R/W - - - READ / WRITE) determines the operation
to the performed.
The last bit of the stream (R/W - - - READ / WRITE) 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 (including word address input of Random Read)
R / W set to “1” - - - - - - READ
A2
A1
A0
1010
R / W
5) Write protect (WP)
When WP pin set to V
CC
(H level), write protect is set for 4,096 words (all address).
When WP pin set to GND (L level), enable to write 4,096 words (all address).
Either control this pin or connect to GND (or V
CC
). It is inhibited from being left unconnected.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BR24L32F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM
BR24L32FJ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM
BR24L32FJ-W 制造商:ROHM 制造商全稱:Rohm 功能描述:4k】8 bit electrically erasable PROM
BR24L32FJ-WE2 功能描述:電可擦除可編程只讀存儲(chǔ)器 SRL 4KX8 BIT RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8
BR24L32FJ-WTR 制造商:ROHM 制造商全稱:Rohm 功能描述:High Reliability Series EEPROMs I2C BUS
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