AT24C256C

The AT24C256C is an electronic component. View the full AT24C256C datasheet below including electrical characteristics, absolute maximum ratings.

Overview

Part: Atmel AT24C256C

Type: I2C-Compatible (2-Wire) Serial EEPROM

Description: The Atmel AT24C256C is a 256-Kbit (32,768 x 8) Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) operating from 1.7V to 5.5V with 1MHz compatibility and a 5ms maximum self-timed write cycle.

Operating Conditions:

Supply voltage: 1.7V to 5.5V
Operating temperature: -40°C to +85°C
Max clock frequency: 1 MHz

Features

Low-voltage and Standard-voltage Operation

VCC = 1.7V to 5.5V
Internally Organized as 32,768 x 8
2-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
400kHz (1.7V) and 1MHz (2.5V, 2.7V, 5.0V) Compatibility
Write Protect Pin for Hardware Protection
64-byte Page Write Mode

Partial Page Writes Allowed
Self-timed Write Cycle (5ms Max)
High Reliability

Endurance: 1,000,000 Write Cycles

Data Retention: 40 Years
Lead-free/Halogen-free Devices Available
Green Package Options (Pb/Halide-free/RoHS Compliant)

8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 8-ball VFBGA Packages
Die Sale Options: Wafer Form, Waffle Pack, and Bumped Wafers

Pin Configuration

Table 1-1. Pin Configuration

Pin	Function
A 0	Address Input
A 1	Address Input
A 2	Address Input
GND	Ground
SDA	Serial Data
SCL	Serial Clock Input
WP	Write Protect
V CC	Device Power Supply

Table 1-1. Pin Configuration

Electrical Characteristics

Applicable over recommended operating range from: T AI = - 40°C to +85°C, V CC = 1.7V to 5.5V (unless otherwise noted).

Symbol	Parameter	Test Condition	Test Condition	Min	Typ	Max	Units
V CC1	Supply Voltage			1.7		5.5	V
I CC1	Supply Current	V CC = 5.0V	Read at 400kHz		1	2.0	mA
I CC2	Supply Current	V CC = 5.0V	Write at 400kHz		2	3.0	mA
I SB1	Standby Current	V CC = 1.7V	V IN = V CC or V SS			1.0	A
I SB1	Standby Current	V CC = 5.0V	V IN = V CC or V SS			6.0	A
I LI	Input Leakage Current V CC = 5.0V	V IN = V CC or V SS	V IN = V CC or V SS		0.1	3.0	A
I LO	Output Leakage Current V CC = 5.0V	V OUT = V CC or V SS	V OUT = V CC or V SS		0.05	3.0	A
V IL	Input Low Level (1)			-0.6		V CC x 0.3	V
V IH	Input High Level ((1)			V CC x 0.7		V CC + 0.5	V
V OL1	Output Low Level	V CC = 1.7V	I OL = 0.15mA			0.2	V
V OL2	Output Low Level	V CC = 3.0V	I OL = 2.1mA			0.4	V

Note: 1. VIL min and V IH max are reference only and are not tested.

Absolute Maximum Ratings

Operating Temperature . . . . . . . . . . .-55°C to +125°C

Storage Temperature . . . . . . . . . . . -65°C to + 150°C

Voltage on any pin with respect to ground . . . . . . . . . . . . . . . -1.0 V +7.0V

Maximum Operating Voltage . . . . . . . . . . . . . . . 6.25V

DC Output Current . . . . . . . . . . . . . . . . . . . . . . .5.0mA

*Notice:

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
AT24C256	Microchip Technology	—

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