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S-25C320A-H Datasheet, PDF (1/31 Pages) Seiko Instruments Inc – OPERATION SPI SERIAL E2PROM FOR AUTOMOTIVE
S-25C320A/640A H Series
www.sii-ic.com
© SII Semiconductor Corporation, 2010-2015
105°C OPERATION
SPI SERIAL E2PROM FOR AUTOMOTIVE
Rev.2.3_01_H
The S-25C320A/640A H series devices are high-temperature operation SPI serial E2PROMs for automotive components.
The S-25C320A/640A H series has the capacity of 32 K-bit and 64 K-bit, and the organization is 4096 words × 8-bit, 8192
words × 8-bit, respectively.
Page write and sequential read are available.
Caution Before using the product in automobile control unit or medical equipment, contact to SII Semiconductor
Corporation is indispensable.
 Features
• Operating voltage range:
Read
Write
2.5 V to 5.5 V
2.5 V to 5.5 V
• Operation frequency:
5.0 MHz (2.5 V to 5.5 V)
• Write time:
5.0 ms max.
• SPI mode (0, 0) and (1, 1)
• Page write
32 bytes / page
• Sequential read
• Monitors write to the memory by a status register
• Write protect:
Software, Hardware
Protect area:
25%, 50%, 100%
• 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:
• Data retention:
• Memory capacitance:
106cycles/word*1 (Ta = +25°C)
3 × 105cycles/word*1 (Ta = +85°C)
2 × 105cycles/word*1 (Ta = +105°C)
100 years (Ta = +25°C)
30 years (Ta = +85°C)
25 years (Ta = +105°C)
S-25C320A
32 K-bit
S-25C640A
64 K-bit
• Initial delivery state:
FFh, SRWD = 0, BP1 = 0, BP0 = 0
• Operation temperature range:
Ta = −40°C to +105°C
• Lead-free (Sn 100%), halogen-free*2
• AEC-Q100 qualified*3
*1. For each address (Word: 8-bit)
*2. Refer to “ Product Name Structure” for details.
*3. Contact our sales office for details.
 Packages
• 8-Pin SOP (JEDEC)
• 8-Pin TSSOP
1