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Overview - S-25C256A

SPI SERIAL EEPROM S-25C256A (256K-bit)

The S-25C256A is a SPI serial E2PROM which operates at high speed, with low current consumption and the wide range
operation. The S-25C256A has the capacity of 256 K-bit and the organization of 32768 words × 8-bit. Page write and
sequential read are available.

DATA SHEET
2011.12.28

Features

  • Wide range operation
     Read ：1.6 V to 5.5 V
     Write ：1.7 V to 5.5 V
  • Operation frequency：10.0 MHz (Vcc =2.5 V to 5.5 V)
  • Write time：5.0 ms Max.
  • SPI mode (0, 0) and (1, 1)
  • Page Write： 64 bytes / page
  • Sequential read
  • Write protect： Software, Hardware
    Protect area： 25%, 50%, 100%
  • Monitors Write to the memory by a status register
  • Function to prevent malfunction by monitoring clock pulse
  • Write protect function during the low power supply voltage
  • CMOS schmitt input（ CS , SCK, SI, WP , HOLD ）
  • Endurance： 106cycles / unit*1 (Ta = +25°C)
  • Data retention： 100 years (Ta = +25°C)
  • Memory capacity： 256 K-bit
  • Initial shipment data ： FFh, SRWD = 0, BP1 = 0, BP0 = 0
  • Lead-free (Sn 100%), halogen-free*2
  • Packages ： 8-Pin SOP (JEDEC), 8-Pin TSSOP

    • *1. For each unit (unit： the 4 bytes with the same address of A14 to A2)
    *2. Refer to "Product Name Structure" of the data sheet for details.