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24LC08B-E/MS データシート(PDF) 5 Page - Microchip Technology

部品番号 24LC08B-E/MS
部品情報  8K I2C??Serial EEPROM
PDF  30 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

24LC08B-E/MS データシート(HTML) 5 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS21710J-page 5
24AA08/24LC08B
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
2.1
Serial Address/Data Input/Output
(SDA)
SDA is a bidirectional pin used to transfer addresses
and data into and out of the device. Since it is an open-
drain terminal, 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 Start and Stop conditions.
2.2
Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
2.3
Write-Protect (WP)
The WP pin must be connected to either VSS or VCC.
If tied to VSS, normal memory operation is enabled
(read/write the entire memory 000-3FF).
If tied to VCC, write operations are inhibited. The entire
memory will be write-protected. Read operations are
not affected.
2.4
A0, A1, A2
The A0, A1 and A2 pins are not used by the 24XX08.
They may be left floating or tied to either VSS or VCC.
Name
PDIP
SOIC
TSSOP
DFN
TDFN
MSOP
SOT-23
Description
A0
1
1
1
1
1
1
—
Not Connected
A1
2
2
2
2
2
2
—
Not Connected
A2
3
3
3
3
3
3
—
Not Connected
VSS
4
4
4
4
4
4
2
Ground
SDA
5
5
5
5
5
5
3
Serial Address/Data I/O
SCL
6
6
6
6
6
6
1
Serial Clock
WP
7
7
7
7
7
7
5
Write-Protect Input
VCC
8
8
8
8
8
8
4
+1.7V to 5.5V Power Supply



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