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Memory / EEPROMs / 25AA040X-I/ST
Datasheets
25AA040X-I/ST by: Microchip Technology Inc

512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8

Part Details for 25AA040X-I/ST by Microchip Technology Inc

Results Overview of 25AA040X-I/ST by Microchip Technology Inc

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

25AA040X-I/ST Information

25AA040X-I/ST 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 25AA040X-I/ST

Part # Distributor Description Stock Price Buy
DISTI # 92C7341
Newark Eeprom, 4Kbit, -40 To 85Deg C, Memory Configuration:512 X 8Bit, Interfaces:Spi, Clock Frequency M... ax:1Mhz, Ic Case/Package:Tssop, No. Of Pins:8Pins, Supply Voltage Min:1.8V, Supply Voltage Max:5.5V, Ic Mounting:Surface Mount Rohs Compliant: Yes |Microchip 25AA040X-I/ST more RoHS: Compliant Min Qty: 500 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 100 $0.7210
$0.7210 Buy Now
DISTI # 25AA040X-I/ST-ND
DigiKey IC EEPROM 4KBIT SPI 1MHZ 8TSSOP Min Qty: 500 Lead time: 6 Weeks Container: Tube Temporarily Out of Stock
  • 500 $0.7004
$0.7004 Buy Now
DISTI # 25AA040X-I/ST
Avnet Americas EEPROM Serial-Microwire 4K-bit 512 x 8 2.5V/3.3V/5V 8-Pin TSSOP Tube - Rail/Tube (Alt: 25AA040X-I/ST... ) more RoHS: Compliant Min Qty: 500 Package Multiple: 100 Lead time: 6 Weeks, 0 Days Container: Tube 0
  • 500 $0.6250
  • 700 $0.6200
  • 1,200 $0.6149
  • 2,500 $0.6100
  • 5,000 $0.6037
$0.6037 / $0.6250 Buy Now
DISTI # 579-25AA040X-I/ST
Mouser Electronics EEPROM 512x8 - 1.8V Rot Pin RoHS: Compliant 0
  • 1 $0.7400
  • 25 $0.7100
  • 100 $0.6800
$0.6800 / $0.7400 Order Now
DISTI # 25AA040X-I/ST
Microchip Technology Inc 4K, 512 X 8 , 1.8V SER EE IND, TSSOP, Projected EOL: 2034-05-16 COO: Malaysia, Philippines, Thailand ECCN: EAR99 RoHS: Compliant Lead time: 6 Weeks, 0 Days Container: Tube 4765

Alternates Available
  • 1 $0.7400
  • 25 $0.7100
  • 100 $0.6800
  • 1,000 $0.6500
  • 5,000 $0.6100
$0.6100 / $0.7400 Buy Now
Onlinecomponents.com EEPROM - Serial-SPI - 4Kb (512 x 8) - 2.5V/3.3V/5V - 8-Pin TSSOP - Tube RoHS: Compliant 4700 Factory Stock
  • 100 $0.7460
  • 300 $0.6850
  • 500 $0.6750
  • 1,000 $0.6650
  • 2,500 $0.6330
  • 5,000 $0.6230
  • 7,500 $0.6140
  • 10,000 $0.6050
$0.6050 / $0.7460 Buy Now
NAC 4K, 512 X 8 , 1.8V SER EE IND, ROTATED PINOUT - Package: 8 TSSOP 4.4mm TUBE RoHS: Compliant Min Qty: 500 Package Multiple: 100 Container: Tube 0
  • 1 $0.7700
  • 100 $0.6900
  • 500 $0.6400
  • 1,000 $0.6300
$0.6300 / $0.7700 Buy Now
DISTI # 25AA040X-I/ST
Avnet Silica EEPROM SerialMicrowire 4Kbit 512 x 8 25V33V5V 8Pin TSSOP Tube (Alt: 25AA040X-I/ST) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 8 Weeks, 0 Days Silica - 0
Buy Now
Master Electronics EEPROM - Serial-SPI - 4Kb (512 x 8) - 2.5V/3.3V/5V - 8-Pin TSSOP - Tube RoHS: Compliant 4700 Factory Stock
  • 100 $0.7460
  • 300 $0.6850
  • 500 $0.6750
  • 1,000 $0.6650
  • 2,500 $0.6330
  • 5,000 $0.6230
  • 7,500 $0.6140
  • 10,000 $0.6050
$0.6050 / $0.7460 Buy Now

Part Details for 25AA040X-I/ST

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25AA040X-I/ST Part Data Attributes

Parametric Data
25AA040X-I/ST Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
25AA040X-I/ST Microchip Technology Inc 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8
Select a part to compare:
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Not Recommended
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Part Package Code SOIC
Package Description 4.40 MM, PLASTIC, TSSOP-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 1997-06-01
Samacsys Manufacturer Microchip
Clock Frequency-Max (fCLK) 1 MHz
Data Retention Time-Min 200
Endurance 1000000 Write/Erase Cycles
JESD-30 Code R-PDSO-G8
JESD-609 Code e3
Length 4.4 mm
Memory Density 4096 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 512 words
Number of Words Code 512
Operating Mode SYNCHRONOUS
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Organization 512X8
Package Body Material PLASTIC/EPOXY
Package Code TSSOP
Package Equivalence Code TSSOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Parallel/Serial SERIAL
Programming Voltage 2.5 V
Qualification Status Not Qualified
Screening Level TS 16949
Seated Height-Max 1.2 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) 1.8 V
Supply Voltage-Nom (Vsup) 2.5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Width 3 mm
Write Cycle Time-Max (tWC) 5 ms
Write Protection HARDWARE

Alternate Parts for 25AA040X-I/ST

This table gives cross-reference parts and alternative options found for 25AA040X-I/ST. 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 25AA040X-I/ST, 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
25AA040XT-E/ST Microchip Technology Inc Check for Price IC,SERIAL EEPROM,512X8,CMOS,TSSOP,8PIN,PLASTIC 25AA040X-I/ST vs 25AA040XT-E/ST
Part Number Manufacturer Composite Price Description Compare
25AA040XT/ST Microchip Technology Inc Check for Price 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, TSSOP-8 25AA040X-I/ST vs 25AA040XT/ST
25AA040-I/P Microchip Technology Inc $0.9425 512 X 8 SPI BUS SERIAL EEPROM, PDIP8, 0.300 INCH, PLASTIC, MS-001, DIP-8 25AA040X-I/ST vs 25AA040-I/P
25AA040-I/STG Microchip Technology Inc Check for Price 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 25AA040X-I/ST vs 25AA040-I/STG
CAT25C04S-1.8TE13 Catalyst Semiconductor Check for Price EEPROM, 512X8, Serial, CMOS, PDSO8, SOIC-8 25AA040X-I/ST vs CAT25C04S-1.8TE13
25AA040/STG Microchip Technology Inc Check for Price 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, TSSOP-8 25AA040X-I/ST vs 25AA040/STG
CAT25C04LE-1.8 Catalyst Semiconductor Check for Price EEPROM, 512X8, Serial, CMOS, PDIP8, LEAD FREE AND HALOGEN FREE, PLASTIC, DIP-8 25AA040X-I/ST vs CAT25C04LE-1.8
25AA040/ST Microchip Technology Inc Check for Price 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, TSSOP-8 25AA040X-I/ST vs 25AA040/ST
25AA040T-I/ST Microchip Technology Inc Check for Price 512 X 8 SPI BUS SERIAL EEPROM, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 25AA040X-I/ST vs 25AA040T-I/ST
CAT25C04PI-1.8 Catalyst Semiconductor Check for Price EEPROM, 512X8, Serial, CMOS, PDIP8, PLASTIC, DIP-8 25AA040X-I/ST vs CAT25C04PI-1.8
IS25C04-2PI Integrated Silicon Solution Inc Check for Price EEPROM, 512X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, DIP-8 25AA040X-I/ST vs IS25C04-2PI

25AA040X-I/ST Frequently Asked Questions (FAQ)

  • The 25AA040X-I/ST has a maximum of 1,000,000 write cycles, with a minimum of 100,000 write cycles guaranteed.

  • The 25AA040X-I/ST uses a page write buffer to handle page writes. The buffer is 16 bytes, and the device can perform a page write in 5ms (typical) or 10ms (maximum).

  • The WP (Write Protect) pin is used to prevent writes to the entire memory array or a specific block of memory. When the WP pin is tied to VCC, the entire memory array is write-protected. When the WP pin is tied to a specific block's WP pin, only that block is write-protected.

  • The 25AA040X-I/ST has a power-on reset (POR) circuit that ensures the device is in a known state after power-up. During power-down, the device automatically goes into a low-power standby mode to conserve power.

  • The 25AA040X-I/ST operates over a voltage range of 1.8V to 5.5V, making it suitable for a wide range of applications.