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參數(shù)資料
| 型號： | CAT24AA04TDI-T3 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | PROM |
| 英文描述： | 512 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO5 |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT, MO-193, TSOT-23, 5 PIN |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 166K |
| 代理商： | CAT24AA04TDI-T3 |
CAT24AA04, CAT24AA08
http://onsemi.com
7
READ OPERATIONS
Immediate Read
To read data from memory, the Master creates a START
condition on the bus and then broadcasts a Slave address
with the R/W bit set to ‘1’. The Slave responds with ACK
and starts shifting out data residing at the current address.
After receiving the data, the Master responds with NoACK
and terminates the session by creating a STOP condition on
the bus (Figure 10). The Slave then returns to Standby mode.
Selective Read
To read data residing at a specic address, the selected
address must rst be loaded into the internal address register.
This is done by starting a Byte Write sequence, whereby the
Master creates a START condition, then broadcasts a Slave
address with the R/W bit set to ‘0’ and then sends an address
byte to the Slave. Rather than completing the Byte Write
sequence by sending data, the Master then creates a START
condition and broadcasts a Slave address with the R/W bit
set to ‘1’. The Slave responds with ACK after every byte sent
by the Master and then sends out data residing at the selected
address. After receiving the data, the Master responds with
NoACK and then terminates the session by creating a STOP
condition on the bus (Figure 11).
Sequential Read
If, after receiving data sent by the Slave, the Master
responds with ACK, then the Slave will continue
transmitting until the Master responds with NoACK
followed by STOP (Figure 12). During Sequential Read the
internal byte address is automatically incremented up to the
end of memory, where it then wraps around to the beginning
of memory.
Figure 10. Immediate Read Sequence and Timing
SCL
SDA
8th Bit
STOP
NO ACK
DATA OUT
89
SLAVE
ADDRESS
S
A
C
K
DATA
BYTE
N
O
A
C
K
S
T
O
P
S
T
A
R
T
BUS ACTIVITY:
MASTER
SLAVE
Figure 11. Selective Read Sequence
SLAVE
S
A
C
K
N
O
A
C
K
S
T
O
P
S
T
A
R
T
S
A
C
K
SLAVE
ADDRESS
A
C
K
S
T
A
R
T
DATA
BYTE
ADDRESS
BYTE
ADDRESS
BUS ACTIVITY:
MASTER
SLAVE
Figure 12. Sequential Read Sequence
A
C
K
A
C
K
A
C
K
S
T
O
P
N
O
A
C
K
A
C
K
P
SLAVE
ADDRESS
DATA
BYTE
n
DATA
BYTE
n+1
DATE
BYTA
n+2
DATA
BYTE
n+x
BUS ACTIVITY:
MASTER
SLAVE
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT24AA04WI-G | 功能描述:電可擦除可編程只讀存儲器 4K-Bit I2C Serial 電可擦除可編程只讀存儲器 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 |
| CAT24AA04WI-GT10 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:4-Kb and 8-Kb I2C CMOS Serial EEPROM |
| CAT24AA04WI-GT3 | 功能描述:電可擦除可編程只讀存儲器 4K-Bit I2C Serial 電可擦除可編程只讀存儲器 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 |
| CAT24AA04WI-T10 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:4-Kb and 8-Kb I2C CMOS Serial EEPROM |
| CAT24AA04WI-T3 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:4-Kb and 8-Kb I2C CMOS Serial EEPROM |
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