AT24C256C-XHL-B Atmel, AT24C256C-XHL-B Datasheet - Page 6
![IC EEPROM 256KBIT IND 8TSSOP](/photos/6/83/68331/453-8-tssop_sml.jpg)
AT24C256C-XHL-B
Manufacturer Part Number
AT24C256C-XHL-B
Description
IC EEPROM 256KBIT IND 8TSSOP
Manufacturer
Atmel
Datasheet
1.AT24C256C-SSHL-B.pdf
(22 pages)
Specifications of AT24C256C-XHL-B
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
400kHz, 1MHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
1.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT24C256C-XHL-B
Manufacturer:
ATMEL
Quantity:
504
4.
6
Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data on the
SDA pin may change only during SCL low time periods (refer to Figure 2). Data changes during SCL high periods
will indicate a start or stop condition as defined below.
Figure 4-1.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition that must precede any
other command (refer to Figure 2-2).
Figure 4-2.
SDA
SCL
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition. After a read sequence, the
stop command will place the EEPROM in a standby power mode (refer to Figure 3).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words.
The EEPROM sends a “0” during the ninth clock cycle to acknowledge that it has received each word.
STANDBY MODE: The Atmel
and after the receipt of the stop bit and the completion of any internal operations.
Atmel AT24C256C
SDA
SCL
S
T
A
Start and Stop Definition
Data Validity
R
T
DATA STABLE
®
AT24C256C features a low-power standby mode that is enabled upon power-up
CHANGE
DATA
DATA STABLE
S
T
O
P
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