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Memory / EEPROMs / 25LC640-I/SN
Datasheets
25LC640-I/SN by:

8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, PLASTIC, SOIC-8

Part Details for 25LC640-I/SN by Microchip Technology Inc

Results Overview of 25LC640-I/SN by Microchip Technology Inc

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Applications Consumer Electronics Internet of Things (IoT) Computing and Data Storage

25LC640-I/SN Information

25LC640-I/SN by Microchip Technology Inc is an EEPROM.
EEPROMs are under the broader part category of Memory Components.

Memory components are essential in electronics for computer processing. They can be volatile or non-volatile, depending on the desired function. Read more about Memory Components on our Memory part category page.

Price & Stock for 25LC640-I/SN

Part # Distributor Description Stock Price Buy
DISTI # 98K8436
Newark Serial Eeprom, 64Kbit, 2Mhz, Soic-8, Memory Size:64Kbit, Eeprom Memory Configuration:8K X 8Bit, Memory Interface Type:Serial Spi, Clock Frequency:2Mhz, Memory Case Style:Soic, No. Of Pins:8Pins, Supply Voltage Min:2.5V, Supply Rohs Compliant: Yes |Microchip 25LC640-I/SN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 8188
  • 1 $0.9000
  • 10 $0.8900
  • 25 $0.8800
  • 50 $0.8600
  • 100 $0.8400
$0.8400 / $0.9000 Buy Now
DISTI # 26AC6636
Newark 64K, 8K X 8 , 2.5V Ser Ee Ind Rohs Compliant: Yes |Microchip 25LC640-I/SN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 1 $0.9360
  • 10 $0.9260
  • 25 $0.9150
  • 50 $0.8940
  • 100 $0.8740
$0.8740 / $0.9360 Buy Now
DISTI # 25LC640-I/SN-ND
DigiKey IC EEPROM 64KBIT SPI 2MHZ 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Tube 1650
In Stock
  • 1 $0.9300
  • 25 $0.9064
  • 100 $0.8652
$0.8652 / $0.9300 Buy Now
DISTI # 25LC640-I/SN
Avnet Americas EEPROM, 64 Kbit, 8K x 8bit, SPI, 2 MHz, SOIC, 8 Pins - Rail/Tube (Alt: 25LC640-I/SN) RoHS: Compliant Min Qty: 100 Package Multiple: 1 Lead time: 6 Weeks, 0 Days Container: Tube 262
  • 100 $0.7375
  • 110 $0.7316
  • 210 $0.7256
  • 500 $0.7198
  • 1,000 $0.7124
$0.7124 / $0.7375 Buy Now
DISTI # 579-25LC640-I/SN
Mouser Electronics EEPROM 8kx8 - 2.5V RoHS: Compliant 12063
  • 1 $0.9000
  • 25 $0.8800
  • 100 $0.8400
$0.8400 / $0.9000 Buy Now
DISTI # VBF:5286_06427646
Arrow Electronics EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 6 Weeks Date Code: 2249 Americas - 301
  • 100 $0.7392
$0.7392 Buy Now
DISTI # E54:1762_00013510
Arrow Electronics EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2413 Europe - 99
  • 1 $0.8935
  • 25 $0.8682
  • 100 $0.7392
$0.7392 / $0.8935 Buy Now
DISTI # V36:1790_06427646
Arrow Electronics EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 6 Weeks Date Code: 2413 Americas - 51
  • 100 $0.8181
$0.8181 Buy Now
DISTI # 25LC640-I/SN
Microchip Technology Inc 64k, 8K X 8 , 2.5V SER EE IND, SOIC, Projected EOL: 2034-05-16 COO: Taiwan, Thailand ECCN: EAR99 RoHS: Compliant Lead time: 6 Weeks, 0 Days Container: Tube 2897

Alternates Available
  • 1 $0.9000
  • 25 $0.8800
  • 100 $0.8400
  • 1,000 $0.8000
  • 5,000 $0.7600
$0.7600 / $0.9000 Buy Now
DISTI # 70045288
RS 64K 8K X 8 2.5V Ser Ee Ind Min Qty: 1 Package Multiple: 1 Lead time: 44 Weeks, 0 Days Container: Bulk 22
  • 1 $0.9100
  • 10 $0.8600
  • 50 $0.8200
  • 100 $0.7700
$0.7700 / $0.9100 Buy Now
Future Electronics 25LC640 Series 64 Kbit (8K x 8) 5.5 V SMT SPI Bus Serial EEPROM - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Container: Tube 4311
Tube
  • 1 $0.8000
  • 40 $0.7750
  • 150 $0.7550
  • 500 $0.7400
  • 2,000 $0.7000
$0.7000 / $0.8000 Buy Now
Onlinecomponents.com EEPROM - Serial SPI - 3.3V/5V - 64Kb (8K x 8) - 2 MHz - 8-Pin SOIC - Tube RoHS: Compliant 2700 In Stock
15700 Factory Stock
  • 100 $0.7610
  • 300 $0.7480
  • 500 $0.7260
  • 1,000 $0.7020
  • 2,500 $0.6830
  • 5,000 $0.6790
$0.6790 / $0.7610 Buy Now
DISTI # 69057694
Verical EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 42 Package Multiple: 1 Date Code: 2305 Americas - 5861
  • 42 $0.8220
  • 50 $0.8080
  • 100 $0.7730
  • 200 $0.7650
  • 1,000 $0.7580
  • 2,000 $0.7510
  • 4,000 $0.7440
$0.7440 / $0.8220 Buy Now
DISTI # 69089562
Verical EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 100 Package Multiple: 100 Date Code: 2318 Americas - 2700
  • 100 $0.8953
  • 300 $0.8800
  • 500 $0.8541
  • 1,000 $0.8259
  • 2,500 $0.8035
$0.8035 / $0.8953 Buy Now
DISTI # 85248995
Verical EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 7 Package Multiple: 1 Date Code: 2413 Americas - 98
  • 7 $0.8935
  • 25 $0.8682
  • 100 $0.7392
$0.7392 / $0.8935 Buy Now
DISTI # 88832767
Verical EEPROM Serial-SPI 64K-bit 8K x 8 3.3V/5V 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 51 Package Multiple: 51 Americas - 51
  • 51 $0.8181
$0.8181 Buy Now
Bristol Electronics   Min Qty: 3 2234
  • 3 $1.8000
  • 13 $1.3500
  • 39 $1.1250
  • 135 $0.6750
  • 446 $0.6300
  • 1,192 $0.5940
$0.5940 / $1.8000 Buy Now
Bristol Electronics   19
RFQ
Bristol Electronics   Min Qty: 3 4
  • 3 $1.8000
$1.8000 Buy Now
Quest Components 8K X 8 SPI BUS SERIAL EEPROM, 250 NS, PDSO8 315
  • 1 $6.0000
  • 64 $3.7000
  • 271 $3.3000
$3.3000 / $6.0000 Buy Now
Quest Components 8K X 8 SPI BUS SERIAL EEPROM, 250 NS, PDSO8 248
  • 1 $2.0400
  • 60 $1.1220
  • 135 $1.0200
$1.0200 / $2.0400 Buy Now
Quest Components 8K X 8 SPI BUS SERIAL EEPROM, 250 NS, PDSO8 227
  • 1 $2.4000
  • 51 $0.9000
  • 168 $0.8400
$0.8400 / $2.4000 Buy Now
Quest Components 8K X 8 SPI BUS SERIAL EEPROM, 250 NS, PDSO8 146
  • 1 $1.8900
  • 14 $1.1340
  • 54 $0.9450
$0.9450 / $1.8900 Buy Now
Quest Components 8K X 8 SPI BUS SERIAL EEPROM, 250 NS, PDSO8 15
  • 1 $27.8600
  • 10 $26.4670
$26.4670 / $27.8600 Buy Now
Future Electronics 25LC640 Series 64 Kbit (8K x 8) 5.5 V SMT SPI Bus Serial EEPROM - SOIC-8 Min Qty: 1 Package Multiple: 1 4311
null
  • 1 $0.8000
  • 40 $0.7750
  • 150 $0.7550
  • 500 $0.7400
  • 2,000 $0.7000
$0.7000 / $0.8000 Buy Now
Future Electronics 25LC640 Series 64 Kbit (8K x 8) 5.5 V SMT SPI Bus Serial EEPROM - SOIC-8 Min Qty: 500 Package Multiple: 500 800
null
  • 100 $0.8400
$0.8400 Buy Now
NAC 64k, 8K X 8 , 2.5V SER EE IND - Package: 8 SOIC 3.90mm(.150in) TUBE RoHS: Compliant Min Qty: 500 Package Multiple: 100 Container: Tube 0
  • 1 $0.9100
  • 100 $0.8200
  • 500 $0.7600
  • 1,000 $0.7400
$0.7400 / $0.9100 Buy Now
DISTI # 25LC640-I/SN
Avnet Silica EEPROM 64 Kbit 8K x 8bit SPI 2 MHz SOIC 8 Pins (Alt: 25LC640-I/SN) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 8 Weeks, 0 Days Silica - 12900
Buy Now
DISTI # 25LC640-I/SN
Chip One Stop Semiconductors RoHS: Compliant pbFree: Yes Min Qty: 1 Lead time: 0 Weeks, 1 Days Container: Tube 5861
  • 1 $0.9640
  • 10 $0.8220
  • 50 $0.8080
  • 100 $0.7730
  • 200 $0.7650
  • 1,000 $0.7580
  • 2,000 $0.7510
  • 4,000 $0.7440
  • 16,000 $0.7160
$0.7160 / $0.9640 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 6
  • 1 $2.3100
  • 100 $1.7300
  • 1,000 $1.5000
$1.5000 / $2.3100 Buy Now
DISTI # 25LC640-I/SN
EBV Elektronik EEPROM 64 Kbit 8K x 8bit SPI 2 MHz SOIC 8 Pins (Alt: 25LC640-I/SN) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 7 Weeks, 0 Days EBV - 0
Buy Now
Master Electronics EEPROM - Serial SPI - 3.3V/5V - 64Kb (8K x 8) - 2 MHz - 8-Pin SOIC - Tube RoHS: Compliant 2700 In Stock
15700 Factory Stock
  • 100 $0.7610
  • 300 $0.7480
  • 500 $0.7260
  • 1,000 $0.7020
  • 2,500 $0.6830
  • 5,000 $0.6790
$0.6790 / $0.7610 Buy Now
Vyrian Memory ICs 4948
RFQ
Win Source Electronics IC EEPROM 64KBIT 2MHZ 8SOIC 24845
  • 75 $0.8080
  • 155 $0.7560
  • 240 $0.7299
  • 345 $0.6778
  • 445 $0.6517
  • 555 $0.6257
$0.6257 / $0.8080 Buy Now

Part Details for 25LC640-I/SN

25LC640-I/SN CAD Models

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25LC640-I/SN Part Data Attributes

Parametric Data
25LC640-I/SN Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
25LC640-I/SN Microchip Technology Inc 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, PLASTIC, SOIC-8
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Not Recommended
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Part Package Code SOIC
Package Description 3.90 MM, PLASTIC, SOIC-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.32.00.51
Factory Lead Time 6 Weeks
Date Of Intro 1997-09-01
Samacsys Manufacturer Microchip
Clock Frequency-Max (fCLK) 2 MHz
Data Retention Time-Min 200
Endurance 1000000 Write/Erase Cycles
JESD-30 Code R-PDSO-G8
JESD-609 Code e3
Length 4.9 mm
Memory Density 65536 bit
Memory IC Type EEPROM
Memory Width 8
Moisture Sensitivity Level 1
Number of Functions 1
Number of Ports 1
Number of Terminals 8
Number of Words 8192 words
Number of Words Code 8000
Operating Mode SYNCHRONOUS
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Organization 8KX8
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.23
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Parallel/Serial SERIAL
Peak Reflow Temperature (Cel) 260
Programming Voltage 5 V
Qualification Status Not Qualified
Screening Level TS 16949
Seated Height-Max 1.75 mm
Serial Bus Type SPI
Standby Current-Max 0.000005 A
Supply Current-Max 0.005 mA
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 2.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Width 3.9 mm
Write Cycle Time-Max (tWC) 5 ms
Write Protection HARDWARE

Alternate Parts for 25LC640-I/SN

This table gives cross-reference parts and alternative options found for 25LC640-I/SN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of 25LC640-I/SN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
25LC640-E/SN Microchip Technology Inc $1.0589 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, MS-012, SOIC-8 25LC640-I/SN vs 25LC640-E/SN
25LC640-I/SNG Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640-I/SNG
25LC640/SNG Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640/SNG
25LC640T-I/SNG Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640T-I/SNG
25LC640/SN Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640/SN
25LC640T-E/SN Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, MS-012, SOIC-8 25LC640-I/SN vs 25LC640T-E/SN
Part Number Manufacturer Composite Price Description Compare
25LC640T-I/SN Microchip Technology Inc $0.7175 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 3.90 MM, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640T-I/SN
25LC640X-I/ST Microchip Technology Inc $0.8147 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 25LC640-I/SN vs 25LC640X-I/ST
25LC640T/SN Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 0.150 INCH, PLASTIC, SOIC-8 25LC640-I/SN vs 25LC640T/SN
25LC640T-E/P Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDIP8, 0.300 INCH, PLASTIC, DIP-8 25LC640-I/SN vs 25LC640T-E/P
25LC640XT-E/ST Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, MO-153, TSSOP-8 25LC640-I/SN vs 25LC640XT-E/ST
25LC640XT/ST Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 25LC640-I/SN vs 25LC640XT/ST
25LC640X-I/STG Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 25LC640-I/SN vs 25LC640X-I/STG
25LC640T-E/ST Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, MO-153, TSSOP-8 25LC640-I/SN vs 25LC640T-E/ST
25LC640-E/ST Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, MO-153, TSSOP-8 25LC640-I/SN vs 25LC640-E/ST
25LC640/P Microchip Technology Inc Check for Price 8K X 8 SPI BUS SERIAL EEPROM, PDIP8, 0.300 INCH, PLASTIC, DIP-8 25LC640-I/SN vs 25LC640/P

25LC640-I/SN Related Parts

25LC640-I/SN Frequently Asked Questions (FAQ)

  • The 25LC640-I/SN has a minimum of 1 million write cycles, but the actual number of write cycles may vary depending on the usage and operating conditions.

  • To ensure data integrity, it is recommended to use a voltage supervisor or a power-on reset circuit to ensure that the device is not accessed during power-down or power-up sequences.

  • The recommended clock frequency for the 25LC640-I/SN is up to 3.4 MHz, but it can operate at frequencies up to 5 MHz with some limitations.

  • Yes, the 25LC640-I/SN has built-in noise filtering and can operate in noisy environments, but it's still recommended to use proper noise reduction techniques and shielding to ensure reliable operation.

  • To handle bus contention, use a bus arbiter or a multiplexer to ensure that only one device is accessing the bus at a time, or use a separate bus for each device.

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