AT24C256SC-10WI datasheet, PDF

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AT24C256SC-10WI: DescriptionTwo-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8); Categorystorage storage; File Size182KB，13 Pages; ManufacturerAtmel (Microchip)

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AT24C256SC-10WI Overview

Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)

AT24C256SC-10WI Parametric

Parameter Name	Attribute value
Maker	Atmel (Microchip)
Parts packaging code	WAFER
package instruction	DIE,
Reach Compliance Code	unknow
ECCN code	EAR99
Maximum clock frequency (fCLK)	1 MHz
JESD-30 code	X-XUUC-N
memory density	262144 bi
Memory IC Type	EEPROM
memory width	8
Number of functions	1
word count	32768 words
character code	32000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	32KX8
Package body material	UNSPECIFIED
encapsulated code	DIE
Package shape	UNSPECIFIED
Package form	UNCASED CHIP
Parallel/Serial	SERIAL
Certification status	Not Qualified
Serial bus type	I2C
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal location	UPPER
Maximum write cycle time (tWC)	5 ms
Base Number Matches	1

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Features

•

Low-voltage and Standard-voltage Operation, V

= 2.7V to 5.5V

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

2-wire Serial Interface

Schmitt Trigger, Filtered Inputs for Noise Suppression

Bi-directional Data Transfer Protocol

1 MHz (5V) and 400 kHz (2.7V) Compatibility

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

Self-timed Write Cycle (5 ms Typical)

High Reliability

– Endurance: 1 Million Write Cycles

– Data Retention: 40 Years

– ESD Protection: > 4000V

Description

The AT24C128SC/256SC 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 devices are optimized for use in smart card applications where low-

power and low-voltage operation may be essential. The devices are available in sev-

eral standard ISO 7816 smart card modules (see Ordering Information). All devices

are functionally equivalent to Atmel Serial EEPROM products offered in standard IC

packages (PDIP, SOIC, TSSOP, dBGA), with the exception of the slave address and

Write Protect functions which are not required for smart card applications.

Table 1.

Pin Configurations

Pad Name

VCC

GND

SCL

SDA

Description

Power Supply Voltage

Ground

Serial Clock Input

Serial Data Input/Output

No Connect

ISO Module Contact

C2, C4, C6, C8

Two-wire Serial

EEPROM Smart

Card Modules

128K (16,384 x 8)

256 (32,768 x 8)

AT24C128SC

AT24C256SC

Figure 1.

Card Module Contact

VCC

1661B–SEEPR–04/04

AT24C256SC-10WI Related Products

	AT24C256SC-10WI	AT24C128SC	AT24C128SC-09BT	AT24C128SC-09AT	AT24C256SC	AT24C128SC-10WI	AT24C256SC-09BT	AT24C256SC-09AT
Description	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)	Two-wire Serial EEPROM Smart Card Modules 128K (16,384 x 8) 256 (32,768 x 8)
Maker	Atmel (Microchip)	-	Atmel (Microchip)	Atmel (Microchip)	-	Atmel (Microchip)	Atmel (Microchip)	Atmel (Microchip)
Parts packaging code	WAFER	-	CARD	CARD	-	WAFER	CARD	CARD
package instruction	DIE,	-	, MODULE,8LEAD,.5	, MODULE,8LEAD,.5	-	DIE,	, MODULE,8LEAD,.5	, MODULE,8LEAD,.5
Reach Compliance Code	unknow	-	unknown	unknown	-	unknown	unknow	unknown
ECCN code	EAR99	-	EAR99	EAR99	-	EAR99	EAR99	EAR99
Maximum clock frequency (fCLK)	1 MHz	-	1 MHz	1 MHz	-	1 MHz	1 MHz	1 MHz
JESD-30 code	X-XUUC-N	-	R-XXMA-X8	R-XXMA-X8	-	X-XUUC-N	R-XXMA-X8	R-XXMA-X8
memory density	262144 bi	-	131072 bit	131072 bit	-	131072 bit	262144 bi	262144 bit
Memory IC Type	EEPROM	-	EEPROM	EEPROM	-	EEPROM	EEPROM	EEPROM
memory width	8	-	8	8	-	8	8	8
Number of functions	1	-	1	1	-	1	1	1
word count	32768 words	-	16384 words	16384 words	-	16384 words	32768 words	32768 words
character code	32000	-	16000	16000	-	16000	32000	32000
Operating mode	SYNCHRONOUS	-	SYNCHRONOUS	SYNCHRONOUS	-	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	85 °C	-	70 °C	70 °C	-	85 °C	70 °C	70 °C
organize	32KX8	-	16KX8	16KX8	-	16KX8	32KX8	32KX8
Package body material	UNSPECIFIED	-	UNSPECIFIED	UNSPECIFIED	-	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Package shape	UNSPECIFIED	-	RECTANGULAR	RECTANGULAR	-	UNSPECIFIED	RECTANGULAR	RECTANGULAR
Package form	UNCASED CHIP	-	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	-	UNCASED CHIP	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY
Parallel/Serial	SERIAL	-	SERIAL	SERIAL	-	SERIAL	SERIAL	SERIAL
Certification status	Not Qualified	-	Not Qualified	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified
Serial bus type	I2C	-	I2C	I2C	-	I2C	I2C	I2C
Maximum supply voltage (Vsup)	5.5 V	-	5.5 V	5.5 V	-	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	2.7 V	-	2.7 V	2.7 V	-	2.7 V	2.7 V	2.7 V
Nominal supply voltage (Vsup)	3 V	-	3 V	3 V	-	3 V	3 V	3 V
surface mount	YES	-	NO	NO	-	YES	NO	NO
technology	CMOS	-	CMOS	CMOS	-	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	-	COMMERCIAL	COMMERCIAL	-	INDUSTRIAL	COMMERCIAL	COMMERCIAL
Terminal form	NO LEAD	-	UNSPECIFIED	UNSPECIFIED	-	NO LEAD	UNSPECIFIED	UNSPECIFIED
Terminal location	UPPER	-	UNSPECIFIED	UNSPECIFIED	-	UPPER	UNSPECIFIED	UNSPECIFIED
Maximum write cycle time (tWC)	5 ms	-	5 ms	5 ms	-	5 ms	5 ms	5 ms
Base Number Matches	1	-	1	1	-	1	-	1

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