参数资料
| 型号： | 24AA16T-I/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 7/40页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 16KBIT 400KHZ 8MSOP |
| 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： | 16K (2K 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，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | 24AA16TI/MS |
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24AA16/24LC16B
5.0 DEVICE ADDRESSING
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
The control byte consists of a four-bit control code.
For the 24XX16, this is set as ‘ 1010 ’ binary for read
Operation
Read
Write
Control
Code
1010
1010
Block Select
Block Address
Block Address
R/W
1
0
and write operations. The next three bits of the control
byte are the block-select bits (B2, B1, B0). They are
used by the master device to select which of the eight
256 word-blocks of memory are to be accessed.
FIGURE 5-1:
CONTROL BYTE
ALLOCATION
These bits are in effect the three Most Significant bits
(MSb) of the word address. It should be noted that the
protocol limits the size of the memory to eight blocks
of 256 words, therefore, the protocol can support only
one 24XX16 per system.
Control Code
Read/Write Bit
Block
Select
Bits
The last bit of the control byte defines the operation to
be performed. When set to ‘ 1 ’, a read operation is
selected. When set to ‘ 0 ’, a write operation is selected.
Following the Start condition, the 24XX16 monitors the
S
1
0
1 0 B2 B1 B0 R/W ACK
Slave Address
SDA bus, checking the device type identifier being
transmitted and, upon receiving a ‘ 1010 ’ code, the
slave device outputs an Acknowledge signal on the
SDA line. Depending on the state of the R/W bit, the
24XX16 will select a read or write operation.
Start Bit
Acknowledge Bit
FIGURE 5-2:
ADDRESS SEQUENCE BIT ASSIGNMENTS
Control Byte
Address Low Byte
0 R/W
1
0
1
0
B
2
B
1
B
A
7
?
?
?
?
?
?
A
0
Control
Code
? 2002-2012 Microchip Technology Inc.
Block
Select
bits
DS21703K-page 7
相关PDF资料 |
PDF描述 |
|---|---|
| 24LC16BT-I/MS | IC EEPROM 16KBIT 400KHZ 8MSOP |
| EP4SGX290HF35I4 | IC STRATIX IV FPGA 290K 1152FBGA |
| 24LC01B-E/P | IC EEPROM 1KBIT 400KHZ 8DIP |
| EP4SGX290HF35C3 | IC STRATIX IV FPGA 290K 1152FBGA |
| 24LC02B-E/ST | IC EEPROM 2KBIT 400KHZ 8TSSOP |
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