AT24C256W-10SC datasheet, PDF - EEWORLD Datasheet

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AT24C256W-10SC: DescriptionEEPROM 256K (32Kx8) 5V; Categorystorage storage; File Size340KB，23 Pages; ManufacturerAtmel (Microchip)

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AT24C256W-10SC Overview

EEPROM 256K (32Kx8) 5V

AT24C256W-10SC Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Atmel (Microchip)
Parts packaging code	SOIC
package instruction	SOP, SOP8,.3
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	HARDWARE & SOFTWARE DATA PROTECTION; DATA RETENTION 40 YEARS
Maximum clock frequency (fCLK)	1 MHz
Data retention time - minimum	40
Durability	100000 Write/Erase Cycles
I2C control byte	10100DDR
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	5.31 mm
memory density	262144 bit
Memory IC Type	EEPROM
memory width	8
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
word count	32768 words
character code	32000
Operating mode	SYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	32KX8
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	SERIAL
Peak Reflow Temperature (Celsius)	240
power supply	5 V
Certification status	Not Qualified
Maximum seat height	2.03 mm
Serial bus type	I2C
Maximum standby current	0.000006 A
Maximum slew rate	0.003 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	5.27 mm
Maximum write cycle time (tWC)	10 ms
write protect	HARDWARE

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Features

•

Low-voltage and Standard-voltage Operation

•

– 2.7 (V

= 2.7V to 5.5V)

– 1.8 (V

= 1.8V to 3.6V)

Internally Organized 16,384 x 8 and 32,768 x 8

Two-wire Serial Interface

Schmitt Trigger, Filtered Inputs for Noise Suppression

Bidirectional Data Transfer Protocol

1 MHz (5V), 400 kHz (2.7V, 2.5V) and 100 kHz (1.8V) Compatibility

Write Protect Pin for Hardware and Software Data Protection

64-byte Page Write Mode (Partial Page Writes Allowed)

Self-timed Write Cycle (5 ms Max)

High Reliability

– Endurance: One Million Write Cycles

– Data Retention: 40 Years

Extended Temperature and Lead-free/Halogen-free

Devices Available

8-lead JEDEC PDIP, 8-lead JEDEC and EIAJ SOIC, 8-lead MAP, 8-lead TSSOP, 8-lead

SAP and 8-ball dBGA2 Packages

Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers

Two-wire Serial

EEPROMs

128K (16,384 x 8)

256K (32,768 x 8)

Description

The AT24C128/256 provides 131,072/262,144 bits of serial electrically erasable and

programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8

bits each. The device’s cascadable feature allows up to 4 devices to share a common

Two-wire bus. The device is optimized for use in many industrial and commercial appli-

cations where low power and low voltage operation are essential. The devices are

available in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ

SOIC, 8-lead MAP (24C128), 8-lead TSSOP, 8-lead SOIC Array Package and 8-ball

dBGA2 packages. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and

1.8V (1.8V to 3.6V) versions.

Table 1.

Pin Configuration

Pin Name

Function

AT24C128

(1)

AT24C256

(2)

Notes:

1. Not recommended for

new design; please

refer to AT24C128B

datasheet.

2. Not recommended for

new design; please

refer to AT24C256B

datasheet.

8-lead PDIP

GND

VCC

SCL

SDA

8-lead TSSOP

GND

VCC

SCL

SDA

A0 - A1

SDA

SCL

GND

Address Inputs

Serial Data

Serial Clock Input

Write Protect

No Connect

Ground

8-lead SOIC

GND

VCC

SCL

SDA

8-lead MAP

VCC

SCL

SDA

GND

Bottom View

8-ball dBGA2

VCC

SCL

SDA

8-lead SAP

VCC

SCL

SDA

GND

Bottom View

0670T–SEEPR–3/07

AT24C256W-10SC Related Products

	AT24C256W-10SC	AT24C128W-10SI-27	AT24C256W-10SI-18	AT24C128N-10SC-27	AT24C128-10TI-27	AT24C256W-10SI-27	AT24C128-10PI-27	AT24C256-10UI-27
Description	EEPROM 256K (32Kx8) 5V	EEPROM 128/256K 2-Wire Bus	EEPROM 128/256k 2-Wire Bus	EEPROM 128/256K 2-Wire Bus	EEPROM 128/256K 2-Wire Bus	EEPROM 128/256k 2-Wire Bus	EEPROM 128/256K 2-Wire Bus	EEPROM 128/256k 2-Wire Bus
Product Category	-	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
Manufacturer	-	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)
RoHS	-	No	No	No	No	No	N	Details
Mounting Style	-	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	Through Hole	SMD/SMT
Package / Case	-	SOIC-8	SOIC-8	PDIP-28	TSSOP-8	SOIC-8	PDIP-8	DBGA2-8
Memory Size	-	128 kbit	256 kbit	128 kbit	128 kbit	256 kbit	128 kbit	256 kbit
Organization	-	16 k x 8	32 k x 8	16 k x 8	16 k x 8	32 k x 8	16 k x 8	32 k x 8
Interface Type	-	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C	Serial, 2-Wire, I2C
Access Time	-	900 ns	4500 ns	900 ns	900 ns	900 ns	900 ns	900 ns
Data Retention	-	40 Year	40 Year	40 Year	40 Year	40 Year	40 Year	40 Year
Maximum Clock Frequency	-	400 kHz	100 kHz	400 kHz	400 kHz	400 kHz	400 kHz	400 kHz
Supply Current - Max	-	3 mA	3 mA	3 mA	3 mA	3 mA	3 mA	3 mA
Operating Supply Voltage	-	2.7 V, 5.5 V	1.8 V, 3.6 V	2.7 V, 5.5 V	2.7 V, 5.5 V	2.7 V, 5.5 V	2.7 V, 5.5 V	2.7 V, 5.5 V
Minimum Operating Temperature	-	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C
Maximum Operating Temperature	-	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C
Height	-	1.91 mm (Max)	1.91 mm (Max)	1.5 mm (Max)	1 mm	1.91 mm (Max)	3.3 mm	0.71 mm
Length	-	5.35 mm (Max)	5.35 mm (Max)	5 mm (Max)	3 mm	5.35 mm (Max)	9.27 mm	3.73 mm
Operating Supply Current	-	3 mA	3 mA	3 mA	3 mA	3 mA	3 mA	3 mA
Supply Voltage - Max	-	5.5 V	3.6 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Supply Voltage - Min	-	2.7 V	1.8 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Width	-	5.4 mm (Max)	5.4 mm (Max)	3.99 mm (Max)	4.4 mm	5.4 mm (Max)	6.35 mm	2.35 mm
Unit Weight	-	0.019048 oz	0.019048 oz	0.019048 oz	0.005573 oz	0.019048 oz	0.032805 oz	-

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