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FT24C02A
(C) RANDOM READ
Random read is a two-steps process. The first step is to initialize the internal address counter with a
target read address using a “dummy write” instruction. The second step is a current address read.
To initialize the internal address counter with a target read address, the micro-controller issues a
START bit first, follows by a valid device address with the read/write bit (8 th ) set to “0”. The EEPROM
will then acknowledge. The micro-controller will then send the address word. Again the EEPROM
will acknowledge. Instead of sending a valid written data to the EEPROM, the micro-controller
performs a current address read instruction to read the data. Note that once a START bit is issued,
the EEPROM will reset the internal programming process and continue to execute the new instruction
- which is to read the current address.
S
T
A
R
T
DEVICE
ADDRESS
W
R
I
T
E
WORD
ADDRESS
DATA
S
T
O
P
SDA LINE
***
M
S
B
L R A M
S / C S
B W K B
L A
S C
B K
A
C
K
Figure 5: Byte Write
S
T
W
R
S
SDA LINE
A
R
T
DEVICE
ADDRESS
***
I
T
E
WORD
ADDRESS(N)
DATA(N)
...
T
O
P
DATA(N+X)
M
S
B
L R A M
S / C S
B W K B
L A
S C
B K
A
C
K
A
C
K
Figure 6: Page Write
S
T
A
R
T
DEVICE
ADDRESS
R
E
A
D
DATA
S
T
O
P
SDA LINE
***
M
S
B
L R A
S / C
B W K
N
O
A
C
K
Figure 7: Current Address Read
DS3011B-page 8
? 2009 Fremont Micro Devices Inc.
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相关代理商/技术参数
FT24C02A-5PG-T
制造商:未知厂家 制造商全称:未知厂家 功能描述:The FT24C02A is 2048 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM.
FT24C02A-5PR-T
功能描述:IC EEPROM 2KBIT 1MHZ TSOT23-5 RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (64K x 16) 速度:150ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘
FT24C02A-5SG-B
制造商:未知厂家 制造商全称:未知厂家 功能描述:The FT24C02A is 2048 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM.
FT24C02A-5SG-T
制造商:未知厂家 制造商全称:未知厂家 功能描述:The FT24C02A is 2048 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM.
FT24C02A-5SR-B
制造商:未知厂家 制造商全称:未知厂家 功能描述:The FT24C02A is 2048 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM.
FT24C02A-5SR-T
制造商:未知厂家 制造商全称:未知厂家 功能描述:The FT24C02A is 2048 bits of serial Electrical Erasable and Programmable Read Only Memory, commonly known as EEPROM.
FT24C02A-FLR-T
功能描述:IC EEPROM 2KBIT 1MHZ SOT23-5 制造商:fremont micro devices usa 系列:- 包装:剪切带（CT） 零件状态:有效 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:2K（256 x 8） 速度:1MHz 接口:I2C，2 线串口 电压 - 电源:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C（TA） 封装/外壳:SC-74A，SOT-753 供应商器件封装:SOT-23-5 标准包装:1
FT24C02A-FPR-T
功能描述:IC EEPROM 2KBIT 1MHZ TSOT23-5 制造商:fremont micro devices usa 系列:- 包装:剪切带（CT） 零件状态:有效 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:2K（256 x 8） 速度:1MHz 接口:I2C，2 线串口 电压 - 电源:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C（TA） 封装/外壳:SC-74A，SOT-753 供应商器件封装:SOT-23-5 标准包装:1