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AT24C256-10CI

Description
32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
Categorystorage    storage   
File Size230KB,15 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric View All

AT24C256-10CI Overview

32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8

AT24C256-10CI Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSOIC
package instructionTSON, SOLCC8,.25
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Other featuresHARDWARE & SOFTWARE DATA PROTECTION; DATA RETENTION 40 YEARS
Maximum clock frequency (fCLK)1 MHz
Data retention time - minimum40
Durability100000 Write/Erase Cycles
I2C control byte10100DDR
JESD-30 codeR-XDSO-N8
JESD-609 codee0
length5.99 mm
memory density262144 bi
Memory IC TypeEEPROM
memory width8
Humidity sensitivity level3
Number of functions1
Number of terminals8
word count32768 words
character code32000
Operating modeSYNCHRONOUS
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
organize32KX8
Package body materialUNSPECIFIED
encapsulated codeTSON
Encapsulate equivalent codeSOLCC8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE
Parallel/SerialSERIAL
Peak Reflow Temperature (Celsius)240
power supply5 V
Certification statusNot Qualified
Maximum seat height1.14 mm
Serial bus typeI2C
Maximum standby current0.000006 A
Maximum slew rate0.003 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width4.93 mm
Maximum write cycle time (tWC)10 ms
write protectHARDWARE
Base Number Matches1
Features
Low Voltage and Standard Voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 1.8 (V
CC
= 1.8V to 3.6V)
Internally Organized 16,384 x 8 and 32,768 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (2.7V) 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 typical)
High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 40 Years
– ESD Protection: > 4000V
Automotive Grade and Extended Temperature Devices Available
8-Pin JEDEC PDIP, 8-Pin JEDEC and EIAJ SOIC, 14-Pin TSSOP, and
8-Pin Leadless Array Packages
2-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
2-wire bus. The device is optimized for use in many industrial and commercial applica-
tions where low power and low voltage operation are essential. The devices are avail-
able in space-saving 8-pin JEDEC PDIP, 8-pin EIAJ, 8-pin JEDEC SOIC, 14-pin
TSSOP, and 8-pin LAP packages. In addition, the entire family is available in 5.0V
(4.5V to 5.5V), 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
AT24C128
AT24C256
Pin Configurations
Pin Name
A
0
to A
1
SDA
SCL
WP
NC
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
No Connect
A0
A1
NC
GND
A0
A1
NC
GND
8-Pin PDIP
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
8-Pin SOIC
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
14-Pin TSSOP
A0
A1
NC
NC
NC
NC
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCC
WP
NC
NC
NC
SCL
SDA
8-Pin Leadless Array
VCC
WP
SCL
SDA
8
7
6
5
1
2
3
4
A0
A1
NC
GND
Rev. 0670C–08/98
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