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Référence fabricant


25LC040 Series 4 Kbit (512 x 8) 5.5 V SMT SPI Bus Serial EEPROM - SOIC-8

Modèle ECAD:
Nom du fabricant: Microchip
Emballage standard:
Product Variant Information section
Code de date: 2238
Product Specification Section
Microchip 25LC040-I/SN - Caractéristiques techniques
Attributes Table
Memory Density: 4kb
Memory Organization: 512 x 8
Supply Voltage-Nom: 2.5V to 5.5V
Clock Frequency-Max: 2MHz
Write Cycle Time-Max (tWC): 5ms
Style d'emballage :  SOIC-8
Méthode de montage : Surface Mount
Fonctionnalités et applications

Note: Not Recommended for new designs.

The 25LC040 (25XX040*) series of 4 Kbit serial Electrically Erasable PROM is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select [CS(bar)] input.

Communication to the device can be paused via the hold pin [HOLD(bar)]. While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. Also, write operations to the device can be disabled via the write-protect pin [WP(bar)].


  • Low-power CMOS technology:
    • Write current: 3 mA, typical
    • Read current: 500 μA, typical
    • Standby current: 500 nA, typical
  • 512 x 8-bit organization
  • 16 byte page
  • Write cycle time: 5 ms max.
  • Self-timed Erase and Write cycles
  • Block write protection:
    • Protect none, 1/4, 1/2 or all of array
  • Built-in write protection:
    • Power on/off data protection circuitry
    • Write enable latch
    • Write-protect pin
  • Sequential read
  • High reliability:
    • Endurance: 1 M cycles
    • Data retention: > 200 years
    • ESD protection: > 4000 V
  • 8-pin PDIP, SOIC and TSSOP packages
  • Temperature ranges supported:
    • Industrial (I): -40°C to +85°C

Learn more about the 25LC040 family of EEPROM

Pricing Section
Stock global :
Sur commande :Order inventroy details
2 000
Stock d'usine :Stock d'usine :
Délai d'usine :
26 Semaines
Commande minimale :
Multiples de :
0,93 $
Prix Internet
1 500+
Product Variant Information section