FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PROM

This IC is a SPI serial E2PROM which operates under the high temperature, at high speed, with the wide range operation for automotive components. This IC has the capacity of 64 K-bit and the organization of 8192 words × 8-bit. Page write and Sequential read are available.

Features
• Operating voltage range
   Read: 2.5 V ~ 5.5 V
   Write: 2.5 V ~ 5.5 V
• Operation frequency
   S-25A640A: 5.0 MHz max.
   S-25A640B: 6.5 MHz max.
• Write time
   S-25A640A: 4.0 ms max.
   S-25A640B: 5.0 ms max.
• SPI mode (0, 0) and (1, 1)
• Page write: 32 bytes / page
• Sequential read
• Write protect: Software, Hardware
   Protect area: 25%, 50%, 100%
• Monitoring of a write memory state by the 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*1
   S-25A640A: 106 cycle / word*2 (Ta = +25°C)
                        5 × 105 cycle / word*2 (Ta = +125°C)
   S-25A640B: 106 cycle / word*2 (Ta = +25°C)
                       3 × 105 cycle / word*2 (Ta = +125°C)
• Data retention: 100 years (Ta = +25°C)
                             50 years (Ta = +125°C)
• Memory capacity: 64 K-bit
• Initial delivery state: FFh, SRWD = 0, BP1 = 0, BP0 = 0
• Burn-in specification: Wafer level burn-in
• Operation temperature range: Ta = −40°C to +125°C
• Lead-free (Sn 100%), halogen-free*3
• AEC-Q100 qualified*4

*1. Refer to "■ Endurance" for details.
*2. For each address (Word: 8-bit)
*3. Refer to "■ Product Name Structure" for details.
*4. Contact our sales office for details.