AT24C256C-MAHL-T Atmel, AT24C256C-MAHL-T Datasheet - Page 3

• Manufacturer Part Number: AT24C256C-MAHL-T
• Description: IC EEPROM 256KBIT IND 8UDFN
• Manufacturer: Atmel

Specifications of AT24C256C-MAHL-T

• 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-UDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.
8568C–SEEPR–5/10
Pin Descriptions
SERIAL CLOCK (SCL): The SCL input is used to positive-edge clock data into each EEPROM device and
negative-edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open drain driven and may
be wire-ORed with any number of other open-drain or open-collector devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1, and A0 pins are device address inputs that are
hardwired (directly to GND or to V
hardwired, as many as eight 256K devices may be addressed on a single bus system. (Device addressing is
discussed in detail under
match is true. If these pins are left floating, the A2, A1, and A0 pins will be internally pulled down to GND.
However, due to capacitive coupling that may appear during customer applications, Atmel recommends always
connecting the address pins to a known state. When using a pull-up resistor, Atmel recommends using 10kΩ or
less.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows normal write operations. When
WP is connected directly to V
pin will be internally pulled down to GND. However, due to capacitive coupling that may appear during customer
applications, Atmel recommends always connecting the WP pins to a known state. When using a pull-up resistor,
Atmel recommends using 10kΩ or less.
“Device
CC
, all write operations to the memory are inhibited. If the pin is left floating, the WP
Addressing”) A device is selected when a corresponding hardware and software
CC
) for compatibility with other Atmel
®
AT24Cxx devices. When the pins are
Atmel AT24C256C
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