参数资料
型号: 24LC16BHT-E/OT
厂商: Microchip Technology
文件页数: 6/28页
文件大小: 0K
描述: IC EEPROM 16KBIT 400KHZ SOT23-5
标准包装: 3,000
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 16K (2K x 8)
速度: 400kHz
接口: I²C,2 线串口
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 125°C
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
24AA16H/24LC16BH
3.6
Device Addressing
FIGURE 3-2:
CONTROL BYTE
A control byte is the first byte received following the
Start condition from the master device (Figure 3-2).
The control byte consists of a four-bit control code. For
the 24XX16H, this is set as ‘ 1010 ’ binary for read and
ALLOCATION
Read/Write Bit
Block
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-
Control Code
Select
Bits
blocks of memory are to be accessed. These bits are in
S
1
0
1
0
B2 B1 B0 R/W ACK
effect the three Most Significant bits of the word
address.
The last bit of the control byte defines the operation to
Slave Address
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 24XX16H monitors
the 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
24XX16H will select a read or write operation.
Start Bit
Acknowledge Bit
Operation
Read
Write
Control
Code
1010
1010
Block Select
Block Address
Block Address
R/W
1
0
DS22118A-page 6
? 2008 Microchip Technology Inc.
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