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24C01C-I/ST Datasheet(PDF) 5 Page - Microchip Technology

Part No. 24C01C-I/ST
Description  1K 5.0V I2C™ Serial EEPROM
Download  30 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

24C01C-I/ST Datasheet(HTML) 5 Page - Microchip Technology

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© 2008 Microchip Technology Inc.
DS21201J-page 5
24C01C
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
2.1
SDA Serial Data
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 VCC (typical 10 k
Ω for 100 kHz, 2 kΩ 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.
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 VCC or
VSS.
2.4
Test
This pin is utilized for testing purposes only. It may be
tied high, tied low or left floating.
2.5
Noise Protection
The 24C01C employs a VCC threshold detector circuit
which disables the internal erase/write logic if the VCC
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.
Name
8-pin
PDIP
8-pin
SOIC
8-pin
TSSOP
8-pin
MSOP
8-pin
DFN/TDFN
Function
A0
1
1
1
1
1
Chip Select
A1
2
2
2
2
2
Chip Select
A2
3
3
3
3
3
Chip Select
VSS
444
4
4
Ground
SDA
5
5
5
5
5
Serial Data
SCL
6
6
6
6
6
Serial Clock
Test
777
7
7
Test
VCC
8
8
8
8
8
+4.5V to 5.5V Power Supply


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