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参数资料
| 型号： | 24LC01 |
| 厂商： | Holtek Semiconductor Inc. |
| 英文描述： | 1K/2K 2-Wire CMOS Serial EEPROM |
| 中文描述： | 1K/2K 2线的CMOS串行EEPROM |
| 文件页数： | 5/8页 |
| 文件大小： | 248K |
| 代理商： | 24LC01 |
The 8th bit of device address is the read/write
operation select bit. A read operation is initi-
ated if this bit is high and a write operation is
initiated if this bit is low.
If the comparison of the device address succeed the
EEPROM will output a zero at ACK bit. If not, the
chip will return to a standby state.
Write operations
Byte write
A write operation requires an 8-bit data word
address following the device address word
and acknowledgment. Upon receipt of this ad-
dress, the EEPROM will again respond with a
zero and then clock in the first 8-bit data
word. After receiving the 8-bit data word, the
EEPROM will output a zero and the address-
ing device, such as a microcontroller, must
terminate the write sequence with a stop con-
dition. At this time the EEPROM enters an
internally-timed write cycle to the non-vola-
tile memory. All inputs are disabled during
this write cycle and EEPROM will not re-
spond until the write is completed (refer to
Byte write timing).
Page write
The 1K/2K EEPROM is capable of an 8-byte
page write.
A page write is initiated the same as byte
write, but the microcontroller does not send a
stop condition after the first data word is
clocked in. Instead, after the EEPROM ac-
knowledges the receipt of the first data word,
the microcontroller can transmit up to seven
more data words. The EEPROM will respond
with a zero after each data word received. The
microcontroller must terminate the page
write sequence with a stop condition.
The data word address lower three (1K/2K)
bits are internally incremented following the
receipt of each data word. The higher data
word address bits are not incremented, re-
taining the memory page row location (refer
to Page write timing).
Acknowledge polling
Since the device will not acknowledge during
a write cycle, this can be used to determine
when the cycle is complete (this feature can be
used to maximize bus throughput). Once the
stop condition for a write command has been
issued from the master, the device initiates
the internally timed write cycle. ACK polling
can be initiated immediately. This involves
the master sending a start condition followed
by the control byte for a write command
(R/W=0). If the device is still busy with the
HT24LC01/02
5
6th May ’99
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 24LC014 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K I2C⑩ Serial EEPROM |
| 24LC014-E/MC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:1K I2Ca?￠ Serial EEPROM |
| 24LC014-E/MNY | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC014-E/MS | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC014-E/P | 功能描述:电可擦除可编程只读存储器 1K 128 X 8 SERIAL EE 2.5V EXT RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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