參數(shù)資料
型號(hào)： CAT1023ZI-45TE13
元件分類(lèi)： DRAM
英文描述： The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
中文描述： 該CAT24FC02是一個(gè)2 KB的EEPROM的國(guó)內(nèi)256個(gè)8位每字舉辦的串行CMOS
文件頁(yè)數(shù)： 9/20頁(yè)
文件大小： 149K
代理商： CAT1023ZI-45TE13
9
CAT1021, CAT1022, CAT1023
Doc No. 3009, Rev. K
EMBEDDED EEPROM OPERATION
The CAT1021/22/23 feature a 2kbit embedded serial
EEPROM that supports the I
2
C Bus data transmission
protocol. This Inter-Integrated Circuit Bus protocol defines
any device that sends data to the bus to be a transmitter
and any device receiving data to be a receiver. The
transfer is controlled by the Master device which
generates the serial clock and all START and STOP
conditions for bus access. Both the Master device and
Slave device can operate as either transmitter or receiver,
but the Master device controls which mode is activated.
I
2
C Bus Protocol
The features of the I
2
C bus protocol are defined as
follows:
(1) Data transfer may be initiated only when the bus is
not busy.
(2) During a data transfer, the data line must remain
stable whenever the clock line is high. Any changes in
the data line while the clock line is high will be interpreted
as a START or STOP condition.
START Condition
The START Condition precedes all commands to the
device, and is defined as a HIGH to LOW transition of
SDA when SCL is HIGH. The CAT1021/22/23 monitor
the SDA and SCL lines and will not respond until this
condition is met.
STOP Condition
A LOW to HIGH transition of SDA when SCL is HIGH
determines the STOP condition. All operations must end
with a STOP condition.
DEVICE ADDRESSING
The Master begins a transmission by sending a START
condition. The Master sends the address of the particular
slave device it is requesting. The four most significant
bits of the 8-bit slave address are programmable in metal
and the default is 1010.
The last bit of the slave address specifies whether a
Read or Write operation is to be performed. When this bit
is set to 1, a Read operation is selected, and when set
to 0, a Write operation is selected.
After the Master sends a START condition and the slave
address byte, the CAT1021/22/23 monitors the bus and
responds with an acknowledge (on the SDA line) when
its address matches the transmitted slave address. The
CAT1021/22/23 then perform a Read or Write operation
depending on the R/
W
bit.
tWR
STOP
CONDITION
START
CONDITION
ADDRESS
ACK
8TH BIT
BYTE n
SCL
SDA
Figure 4. Write Cycle Timing
tHIGH
SCL
SDA IN
SDA OUT
tLOW
tF
tLOW
tR
tBUF
tSU:STO
tSU:DAT
tHD:DAT
tHD:STA
tSU:STA
tAA
tDH
Figure 3. Bus Timing
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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CAT10-240J4 功能描述:電阻器網(wǎng)絡(luò)與陣列 24ohm 5% Concave 4resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類(lèi)型:Networks 電路類(lèi)型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類(lèi)型:SMD/SMT 封裝:Reel
CAT10-240J4LF 功能描述:電阻器網(wǎng)絡(luò)與陣列 24ohm 5% Concave 4resistors RoHS:否 制造商:Vishay/Thin Film 產(chǎn)品類(lèi)型:Networks 電路類(lèi)型:Divider 電阻器數(shù)量: 電阻數(shù)值:10 kOhms 容差:0.1 % 溫度系數(shù): 管腳數(shù)量:3 工作溫度范圍:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引線間隔: 端接類(lèi)型:SMD/SMT 封裝:Reel
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