AT25256A-10CI-1.8

AT25256A-10CI-1.8 Datasheet

The AT25128A/256A provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory EEPROM organized as 16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space saving 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array 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 5.5V versions.

Part	Datasheet
AT25256A-10CI-1.8	AT25256A-10CI-1.8 (pdf)

Related Parts	Information
AT25256A-10CI-2.7	AT25256A-10CI-2.7

PDF Datasheet Preview
• Serial Peripheral Interface SPI Compatible • Supports SPI Modes 0,0 and 3 1,1 • Low-voltage and Standard-voltage Operation VCC = 2.7V to 5.5V VCC = 1.8V to 5.5V • 20 MHz Clock Rate 5V • 64-byte Page Mode and Byte Write Operation • Block Write Protection Protect 1/4, 1/2, or Entire Array • Write Protect WP Pin and Write Disable Instructions for Both Hardware and Software Data Protection • Self-timed Write Cycle 5 ms Max • High-reliability Endurance 100,000 Write Cycles Data Retention >100 Years • Automotive Grade, Extended Temperature and Lead-free/Halogen-free Devices Available • 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array and 8-ball dBGA2 Packages The AT25128A/256A provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory EEPROM organized as 16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space saving 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array 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 5.5V versions. The AT25128A/256A is enabled through the Chip Select pin CS and accessed via a 3-wire interface consisting of Serial Data Input SI , Serial Data Output SO , and Pin Configurations Pin Name CS SCK SI SO GND VCC WP HOLD NC DC Function Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground Power Supply Write Protect Suspends Serial Input No Connect Don't Connect 8-lead TSSOP CS 1 SO 2 WP 3 GND 4 8 VCC 7 HOLD 6 SCK 5 SI 8-ball dBGA2 VCC 8 HOLD 7 SCK 6 SI 5 1 CS 2 SO 3 WP 4 GND Bottom View 8-lead PDIP CS 1 SO 2 WP 3 GND 4 8 VCC 7 HOLD 6 SCK 5 SI 8-lead Leadless Array VCC 8 HOLD 7 SCK 6 SI 5 1 CS 2 SO 3 WP 4 GND Bottom View 8-lead SOIC CS 1 SO 2 WP 3 GND 4 8 VCC 7 HOLD 6 SCK 5 SI SPI Serial EEPROMs 128K 16,384 x 8 256K 32,768 x 8 AT25128A AT25256A Preliminary Serial Clock SCK . All programming cycles are completely self-timed, and no separate ERASE cycle is required before WRITE. BLOCK WRITE protection is enabled by programming the status register with top ¼, top or entire array of write protection. Separate program enable and program disable instructions are provided for additional data protection. Hardware data protection is provided via the WP pin to protect against inadvertent write attempts to the status register. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. Absolute Maximum Ratings* Operating -55° C to +125° C Storage Temperature -65° C to +150° C Voltage on Any Pin with Respect to Ground to +7.0V Maximum Operating Voltage 6.25V AT25128A Ordering Information Ordering Code Package Operation Range AT25128A-10PI-2.7 AT25128AN-10SI-2.7 AT25128AW-10SI-2.7 AT25128AU2-10UI-2.7 AT25128A-10TI-2.7 8P3 8S1 8S2 8U2-1 8A2 Industrial Temperature -40° C to 85° C AT25128A-10PI-1.8 AT25128AN-10SI-1.8 AT25128AW-10SI-1.8 AT25128AU2-10UI-1.8 AT25128A-10TI-1.8 8P3 8S1 8S2 8U2-1 8A2 Industrial Temperature -40° C to 85° C AT25128AN-10SU-2.7 AT25128AN-10SU-1.8 AT25128A-10TU-2.7 AT25128A-10TU-1.8 Lead-free/Halogen-free/ Industrial Temperature -40° C to 85° C AT25128AN-10SE-2.7 High Grade/Extended Temperature 8S1 -40° C to 125° C Note For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC Characteristics tables. 8P3 8S1 8S2 8U2-1 8A2 Package Type 8-lead, Wide, Plastic Dual In-line Package PDIP 8-lead, Wide, Plastic Gull Wing Small Outline Package JEDEC SOIC 8-lead, Wide, Plastic Gull Wing Small Outline Package EIAJ SOIC 8-ball, die Ball Grid Array Package dBGA2 8-lead, Wide, Thin Shrink Small Outline Package TSSOP Options Low-voltage 2.7V to 5.5V Low-voltage 1.8V to 5.5V AT25256A Ordering Information Ordering Code Package Operation Range AT25256A-10PI-2.7 AT25256AN-10SI-2.7 AT25256AW-10SI-2.7 AT25256A-10CI-2.7 AT25256AU2-10UI-2.7 AT25256A-10TI-2.7 AT25256A-10PI-1.8 AT25256AN-10SI-1.8 AT25256AW-10SI-1.8 AT25256A-10CI-1.8 AT25256AU2-10UI-1.8 AT25256A-10TI-1.8 AT25256AN-10SU-2.7 AT25256AN-10SU-1.8 AT25256A-10TU-2.7 AT25256A-10TU-1.8 AT25256AN-10SE-2.7 8P3 8S1 8S2 8CN3 8U2-1 8A2 8P3 8S1 8S2 8CN3 8U2-1 8A2 8S1 8A2 Industrial Temperature -40° C to 85° C Industrial Temperature -40° C to 85° C Lead-free/Halogen-free/ Industrial Temperature -40° C to 85° C High Grade/Extended Temperature -40° C to 125° C Note For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC Characteristics tables. 8P3 8S1 8S2 8CN3 8U2-1 8A2 Package Type 8-lead, Wide, Plastic Dual In-line Package PDIP 8-lead, Wide, Plastic Gull Wing Small Outline Package JEDEC SOIC 8-lead, Wide, Plastic Gull Wing Small Outline Package EIAJ SOIC 8-lead, Wide, Leadless Array Package LAP 8-ball, die Ball Grid Array Package dBGA2 8-lead, Wide, Thin Shrink Small Outline Package TSSOP Options Low-voltage 2.7V to 5.5V Low-voltage 1.8V to 5.5V 14 AT25128A/256A Packaging Information 8P3 PDIP AT25128A/256A Top View End View 4 PLCS Side View COMMON DIMENSIONS Unit of Measure = inches SYMBOL A A2 b b2 b3 c D D1 E E1 e eA L MIN NOM MAX NOTE 2 This drawing is for general information only refer to JEDEC Drawing MS-001, Variation BA for additional information. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3. D, D1 and E1 dimensions do not include mold Flash or protrusions. Mold Flash or protrusions shall not exceed inch. E and eA measured with the leads constrained to be perpendicular to datum. Pointed or rounded lead tips are preferred to ease insertion. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed mm . 01/09/02 2325 Orchard Parkway R San Jose, CA 95131 TITLE 8P3, 8-lead, Wide Body, Plastic Dual In-line Package PDIP 8S1 JEDEC SOIC Top View Side View End View COMMON DIMENSIONS Unit of Measure = mm SYMBOL A A1 b C D E1 E L NOTE Note These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc.

PDF Datasheet Preview

• Serial Peripheral Interface SPI Compatible
• Supports SPI Modes 0,0 and 3 1,1
• Low-voltage and Standard-voltage Operation

VCC = 2.7V to 5.5V VCC = 1.8V to 5.5V
• 20 MHz Clock Rate 5V
• 64-byte Page Mode and Byte Write Operation
• Block Write Protection

Protect 1/4, 1/2, or Entire Array
• Write Protect WP Pin and Write Disable Instructions for

Both Hardware and Software Data Protection
• Self-timed Write Cycle 5 ms Max
• High-reliability

Endurance 100,000 Write Cycles

Data Retention >100 Years
• Automotive Grade, Extended Temperature and Lead-free/Halogen-free

Devices Available
• 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless

Array and 8-ball dBGA2 Packages

The AT25128A/256A provides 131,072/262,144 bits of serial electrically-erasable programmable read only memory EEPROM organized as 16,384/32,768 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The devices are available in space saving 8-lead PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array 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 5.5V versions.

The AT25128A/256A is enabled through the Chip Select pin CS and accessed via a 3-wire interface consisting of Serial Data Input SI , Serial Data Output SO , and

Pin Configurations

Pin Name CS SCK SI SO GND VCC WP HOLD NC DC

Function Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground Power Supply Write Protect Suspends Serial Input No Connect Don't Connect
8-lead TSSOP

CS 1 SO 2 WP 3 GND 4
8 VCC 7 HOLD 6 SCK 5 SI
8-ball dBGA2

VCC 8 HOLD 7

SCK 6 SI 5
1 CS 2 SO 3 WP 4 GND

Bottom View
8-lead PDIP

CS 1 SO 2 WP 3 GND 4
8 VCC 7 HOLD 6 SCK 5 SI
8-lead Leadless Array

VCC 8 HOLD 7

SCK 6 SI 5
1 CS 2 SO 3 WP 4 GND

Bottom View
8-lead SOIC

CS 1 SO 2 WP 3 GND 4
8 VCC 7 HOLD 6 SCK 5 SI

SPI Serial EEPROMs
128K 16,384 x 8 256K 32,768 x 8

AT25128A AT25256A Preliminary

Serial Clock SCK . All programming cycles are completely self-timed, and no separate ERASE cycle is required before WRITE.

BLOCK WRITE protection is enabled by programming the status register with top ¼, top or entire array of write protection. Separate program enable and program disable instructions are provided for additional data protection. Hardware data protection is provided via the WP pin to protect against inadvertent write attempts to the status register. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence.

Absolute Maximum Ratings*

Operating -55° C to +125° C Storage Temperature -65° C to +150° C

Voltage on Any Pin with Respect to Ground to +7.0V

Maximum Operating Voltage 6.25V
AT25128A Ordering Information
Ordering Code

Package

Operation Range

AT25128A-10PI-2.7 AT25128AN-10SI-2.7 AT25128AW-10SI-2.7 AT25128AU2-10UI-2.7 AT25128A-10TI-2.7
8P3 8S1 8S2 8U2-1 8A2

Industrial Temperature -40° C to 85° C

AT25128A-10PI-1.8 AT25128AN-10SI-1.8 AT25128AW-10SI-1.8 AT25128AU2-10UI-1.8 AT25128A-10TI-1.8
8P3 8S1 8S2 8U2-1 8A2

Industrial Temperature -40° C to 85° C

AT25128AN-10SU-2.7 AT25128AN-10SU-1.8 AT25128A-10TU-2.7 AT25128A-10TU-1.8

Lead-free/Halogen-free/

Industrial Temperature
-40° C to 85° C

AT25128AN-10SE-2.7

High Grade/Extended Temperature 8S1
-40° C to 125° C

Note For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC Characteristics tables.
8P3 8S1 8S2 8U2-1 8A2

Package Type
8-lead, Wide, Plastic Dual In-line Package PDIP 8-lead, Wide, Plastic Gull Wing Small Outline Package JEDEC SOIC 8-lead, Wide, Plastic Gull Wing Small Outline Package EIAJ SOIC 8-ball, die Ball Grid Array Package dBGA2 8-lead, Wide, Thin Shrink Small Outline Package TSSOP

Options

Low-voltage 2.7V to 5.5V Low-voltage 1.8V to 5.5V
AT25256A Ordering Information
Ordering Code

Package

Operation Range

AT25256A-10PI-2.7 AT25256AN-10SI-2.7 AT25256AW-10SI-2.7 AT25256A-10CI-2.7 AT25256AU2-10UI-2.7 AT25256A-10TI-2.7 AT25256A-10PI-1.8 AT25256AN-10SI-1.8 AT25256AW-10SI-1.8 AT25256A-10CI-1.8 AT25256AU2-10UI-1.8 AT25256A-10TI-1.8 AT25256AN-10SU-2.7 AT25256AN-10SU-1.8 AT25256A-10TU-2.7 AT25256A-10TU-1.8

AT25256AN-10SE-2.7
8P3 8S1 8S2 8CN3 8U2-1 8A2 8P3 8S1 8S2 8CN3 8U2-1 8A2 8S1 8A2

Industrial Temperature -40° C to 85° C

Industrial Temperature -40° C to 85° C

Lead-free/Halogen-free/ Industrial Temperature
-40° C to 85° C High Grade/Extended Temperature
-40° C to 125° C

Note For 2.7V devices used in the 4.5V to 5.5V range, please refer to performance values in the AC and DC Characteristics tables.
8P3 8S1 8S2 8CN3 8U2-1 8A2

Package Type
8-lead, Wide, Plastic Dual In-line Package PDIP 8-lead, Wide, Plastic Gull Wing Small Outline Package JEDEC SOIC 8-lead, Wide, Plastic Gull Wing Small Outline Package EIAJ SOIC 8-lead, Wide, Leadless Array Package LAP 8-ball, die Ball Grid Array Package dBGA2 8-lead, Wide, Thin Shrink Small Outline Package TSSOP

Options

Low-voltage 2.7V to 5.5V Low-voltage 1.8V to 5.5V
14 AT25128A/256A

Packaging Information
8P3 PDIP

AT25128A/256A

Top View

End View
4 PLCS

Side View

COMMON DIMENSIONS Unit of Measure = inches

SYMBOL A A2 b b2 b3 c D D1 E E1 e eA L

MIN NOM MAX

NOTE 2

This drawing is for general information only refer to JEDEC Drawing MS-001, Variation BA for additional information. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3. D, D1 and E1 dimensions do not include mold Flash or protrusions. Mold Flash or protrusions shall not exceed inch. E and eA measured with the leads constrained to be perpendicular to datum. Pointed or rounded lead tips are preferred to ease insertion. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed mm .
01/09/02
2325 Orchard Parkway R San Jose, CA 95131

TITLE 8P3, 8-lead, Wide Body, Plastic Dual In-line Package PDIP
8S1 JEDEC SOIC

Top View

Side View

End View

COMMON DIMENSIONS Unit of Measure = mm

SYMBOL A A1 b C D E1 E L

NOTE

Note These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AT25256A-10CI-1.8 Datasheet file may be downloaded here without warranties.

Datasheet ID: AT25256A-10CI-1.8 518899