
S-25A080A/160A/320A, S-25A080B/160B/320B
www.sii-ic.com
125°C OPERATION
SPI SERIAL E2PROM FOR AUTOMOTIVE
© Seiko Instruments Inc., 2008-2011 Rev.4.0_00
Seiko Instruments Inc. 1
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 8 K-bit, 16 K-bit, 32 K-bit and the organization of 1024 words × 8-bit,
2048 words × 8-bit, 4096 words × 8-bit. Page write and Sequential read are available.
Caution Before using the product in automobile control unit or medical equipment, contact to SII is indispensable.
Features
• Operating voltage range
Read: 2.5 V ~ 5.5 V
Write: 2.5 V ~ 5.5 V
• Operation frequency: 6.5 MHz max.
• Write time
S-25A080A/160A/320A: 4.0 ms max.
S-25A080B/160B/320B: 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-25A080A/160A/320A: 106 cycle / word*2 (Ta = +25°C)
5 × 105 cycle / word*2 (Ta = +125°C)
S-25A080B/160B/320B: 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
S-25A080A, S-25A080B: 8 K-bit
S-25A160A, S-25A160B: 16 K-bit
S-25A320A, S-25A320B: 32 K-bit
• Initial shipment data: FFh, SRWD = 0, BP1 = 0, BP0 = 0
• Burn-in specification: Wafer level burn-in
• Lead-free (Sn 100%), halogen-free*3
*1. Refer to " Endurance" for details.
*2. For each address (Word: 8-bit)
*3. Refer to " Product Name Structure" for details.
Packages
• 8-Pin SOP (JEDEC)
1
4
5
8
(5.0 × 6.0 × t1.75 mm)
• 8-Pin TSSOP
1
4
5
8
(3.0 × 6.4 × t1.1 mm)
• TMSOP-8
14
5
8
(2.9 × 4.0 × t0.8 mm)
Remark Refer to "3. Product name list" in " Product Name Structure" for details of package and product.