- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372530 > X24128SI-1.8 400KHz 2-Wire Serial E2PROM with Block Lock PDF資料下載
參數(shù)資料
| 型號： | X24128SI-1.8 |
| 英文描述： | 400KHz 2-Wire Serial E2PROM with Block Lock |
| 中文描述： | 400kHz的2線串行E2PROM的塊鎖 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大?。?/td> | 87K |
| 代理商： | X24128SI-1.8 |
X24128
8
Random Read
Random read operation allows the master to access
any memory location in the array. Prior to issuing
the Slave Address Byte with the R/W bit set to one,
the master must first perform a “Dummy” write oper-
ation. The master issues the start condition and the
Slave Address Byte with the R/W bit low, receives
an acknowledge, then issues the Word Address
Byte 1, receives another acknowledge, then issues
the Word Address Byte 0. After the device acknowl-
edges receipt of the Word Address Byte 0, the
master issues another start condition and the Slave
Address Byte with the R/W bit set to one. This is
followed by an acknowledge and then eight bits of
data from the device. The master terminates the
read operation by not responding with an acknowl-
edge and then issuing a stop condition. Refer to
figure 9 for the address, acknowledge, and data
transfer sequence.
The device will perform a similar operation called “Set
Current Address” if a stop is issued instead of the
second start shown in figure 9. The device will go into
standby mode after the stop and all bus activity will be
ignored until a start is detected. The effect of this oper-
ation is that the new address is loaded into the
address counter, but no data is output by the device.
The next Current Address Read operation will read
from the newly loaded address.
Sequential Read
Sequential reads can be initiated as either a current
address read or random read. The first Data Byte is
transmitted as with the other modes; however, the
master now responds with an acknowledge, indicating
it requires additional data. The device continues to
output data for each acknowledge received. The
master terminates the read operation by not
responding with an acknowledge and then issuing a
stop condition.
The data output is sequential, with the data from address
n followed by the data from address n + 1. The address
counter for read operations increments through all byte
addresses, allowing the entire memory contents to be
read during one operation. At the end of the address
space the counter “rolls over” to address 0000h and the
device continues to output data for each acknowledge
received. Refer to figure 10 for the acknowledge and
data transfer sequence.
SLAVE
ADDRESS
S
S
T
O
P
P
A
C
K
A
C
K
A
C
K
A
C
K
DATA
(1)
DATA
(2)
SIGNALS
FROM THE
MASTER
SDA BUS
SIGNALS
FROM THE
SLAVE
DATA
(n–1)
DATA
(n)
1
(n is any integer greater than 1)
7027 FM 12
SIGNALS
FROMTHE
MASTER
SDA BUS
SIGNALS
FROMTHE
SLAVE
S
T
A
R
T
S
SLAVE
ADDRESS
S
T
O
P
P
A
C
K
A
C
K
A
C
K
WORDADDRESS
BYTE 1
SLAVE
ADDRESS
0
WORD ADDRESS
BYTE 0
S
T
A
R
T
S
1
DATA
A
C
K
1 0 1 0
7027 FM 11
Figure 9. Random Read Sequence
Figure 10. Sequential Read Sequence
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X24128SI-2.5 | 400KHz 2-Wire Serial E2PROM with Block Lock |
| X24129 | 16K×8Bit 400KHz 2-Wire Serial E2PROM(400KHz二線串行EEPROM) |
| X24165 | Advanced 2-Wire Serial EEPROM with Block Lock Protection(寫保護引腳，可編程塊鎖定的串行EEPROM) |
| X2444DM | 40V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; Similar to IRF2204S with Lead Free Packaging |
| X24C01A | Serial EEPROM(二線接口串行EEPROM) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X24128SI-2.5 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:400KHz 2-Wire Serial E2PROM with Block Lock |
| X24128Z | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
| X24128Z-1.8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
| X24128Z-2.5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
| X24128ZI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。