参数资料
型号: 24C01CT-E/OT
厂商: Microchip Technology
文件页数: 5/36页
文件大小: 0K
描述: IC EEPROM 1KBIT 400KHZ SOT23-6
标准包装: 3,000
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: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 125°C
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 带卷 (TR)
24C01C
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1 .
TABLE 2-1:
PIN FUNCTION TABLE
Name
A0
A1
A2
V SS
SDA
SCL
Test
V CC
8-pin
PDIP
1
2
3
4
5
6
7
8
8-pin
SOIC
1
2
3
4
5
6
7
8
8-pin
TSSOP
1
2
3
4
5
6
7
8
8-pin
MSOP
1
2
3
4
5
6
7
8
8-pin
DFN/TDFN
1
2
3
4
5
6
7
8
SOT-23
5
4
2
3
1
6
Function
Chip Select
Chip Select
Chip Select
Ground
Serial Data
Serial Clock
Test
+4.5V to 5.5V Power Supply
2.1
SDA Serial Data
2.5
Noise Protection
This is a bidirectional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal; therefore, the SDA bus requires a pull-
up resistor to V CC (typical 10 k ? for 100 kHz, 2 k ? for
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low. Changes during SCL high are
reserved for indicating the Start and Stop conditions.
The 24C01C employs a V CC threshold detector circuit
which disables the internal erase/write logic if the V CC
is below 3.8 volts at nominal conditions.
The SCL and SDA inputs have Schmitt Trigger and
filter circuits which suppress noise spikes to assure
proper device operation even on a noisy bus.
2.2
SCL Serial Clock
This input is used to synchronize the data transfer from
and to the device.
2.3
A0, A1, A2
The levels on these inputs are compared with the
corresponding bits in the slave address. The chip is
selected if the compare is true.
Up to eight 24C01C devices may be connected to the
same bus by using different Chip Select bit combina-
tions. These inputs must be connected to either V CC or
V SS .
For the SOT-23 devices up to four devices may be con-
nected to the same bus using different Chip Select bit
combinations.
In most applications, the chip address inputs A0, A1
and A2 are hard-wired to logic ‘ 0 ’ or logic ‘ 1 ’. For
applications in which these pins are controlled by a
microcontroller or other programmable device, the chip
address pins must be driven to logic ‘ 0 ’ or logic ‘ 1 ’
before normal device operation can proceed.
2.4
Test
This pin is utilized for testing purposes only. It may be
tied high, tied low or left floating.
? 1997-2012 Microchip Technology Inc.
DS21201K-page 5
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