参数资料
型号: 24LC21T/SN
厂商: Microchip Technology
文件页数: 8/24页
文件大小: 0K
描述: IC EEPROM 1KBIT 400KHZ 8SOIC
产品培训模块: I2C Serial EEPROM
标准包装: 3,300
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 1K (128 x 8)
速度: 100kHz,400kHz
接口: I²C,2 线串口
电源电压: 2.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)
24LC21
It is required that V CLK be held at a logic high level in
order to program the device. This applies to byte write
and page write operation. Note that V CLK can go low
while the device is in its self-timed program operation
and not affect programming.
Note:
Page write operations are limited to writing
bytes within a single physical page,
regardless of the number of bytes
actually being written. Physical page
boundaries start at addresses that are
integer multiples of the page buffer size (or
‘page size’) and end at addresses that are
integer multiples of [page size - 1]. If a
page Write command attempts to write
across a physical page boundary, the
result is that the data wraps around to the
beginning of the current page (overwriting
data previously stored there), instead of
being written to the next page as might be
expected. It is therefore necessary for the
application software to prevent page write
operations that would attempt to cross a
page boundary.
FIGURE 4-1:
BYTE WRITE
BUS ACTIVITY
MASTER
S
T
A
R
T
Control
Byte
Word
Address
Data
S
T
O
P
SDA LINE
S
P
A
A
A
BUS ACTIVITY
C
K
C
K
C
K
V CLK
FIGURE 4-2:
BYTE WRITE
BUS ACTIVITY
MASTER
S
T
A
R
T
Control
Byte
Word
Address
Data
S
T
O
P
SDA LINE
S
P
A
A
A
BUS ACTIVITY
C
K
C
K
C
K
V CLK
DS21095J-page 8
? 2004 Microchip Technology Inc.
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