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参数资料
| 型号： | 24AA00T-I/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 128BIT 400KHZ 8TSSOP |
| 产品培训模块： | I2C Serial EEPROM |
| 标准包装： | 2,500 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 128（16 x 8） |
| 速度： | 100kHz，400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 带卷 (TR) |
24AA00/24LC00/24C00
8.0
READ OPERATIONS
After the word address is sent, the master generates a
Start condition following the acknowledge. This termi-
Read operations are initiated in the same way as write
operations with the exception that the R/W bit of the
slave address is set to one. There are three basic types
of read operations: current address read, random read
and sequential read.
nates the write operation, but not before the internal
Address Pointer is set. Then the master issues the
control byte again, but with the R/W bit set to a one.
The 24XX00 will then issue an acknowledge and trans-
mits the eight bit data word. The master will not
acknowledge the transfer, but does generate a Stop
8.1
Current Address Read
condition and the device discontinues transmission
The 24XX00 contains an address counter that main-
tains the address of the last word accessed, internally
incremented by one. Therefore, if the previous read
(Figure 8-2). After this command, the internal address
counter will point to the address location following the
one that was just read.
access was to address n, the next current address read
operation would access data from address n + 1. Upon
8.3
Sequential Read
receipt of the slave address with the R/W bit set to one,
the device issues an acknowledge and transmits the
eight-bit data word. The master will not acknowledge
the transfer, but does generate a Stop condition and the
device discontinues transmission (Figure 8-1).
Sequential reads are initiated in the same way as a
random read except that after the device transmits the
first data byte, the master issues an acknowledge as
opposed to a Stop condition in a random read. This
directs the device to transmit the next sequentially
addressed 8-bit word (Figure 8-3).
8.2
Random Read
To provide sequential reads the 24XX00 contains an
Random read operations allow the master to access
any memory location in a random manner. To perform
this type of read operation, first the word address must
be set. This is done by sending the word address to the
device as part of a write operation.
internal Address Pointer which is incremented by one
at the completion of each read operation. This Address
Pointer allows the entire memory contents to be serially
read during one operation.
FIGURE 8-1:
CURRENT ADDRESS READ
S
BUS ACTIVITY
MASTER
T
A
R
Control
Byte
Data
S
T
O
T
P
SDA LINE
BUS ACTIVITY
S 1 0 1 0 xxx 1
A
C
N
O
P
DS21178G-page 8
x = “don’t care” bit
K
A
C
K
? 2007 Microchip Technology Inc.
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相关代理商/技术参数 |
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|---|---|
| 24AA00T-OT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128 Bit I 2 C? Bus Serial EEPROM |
| 24AA00T-P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128 Bit I 2 C? Bus Serial EEPROM |
| 24AA00T-SN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128 Bit I 2 C? Bus Serial EEPROM |
| 24AA00T-ST | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128 Bit I 2 C? Bus Serial EEPROM |
| 24AA01 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K I2C Serial EEPROM |
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