S-25A256B FOR AUTOMOTIVE 125C OPERATION 2 www.ablic.com SPI SERIAL E PROM www.ablicinc.com ABLIC Inc., 2011-2014 Rev.1.2 02 2 This IC is a SPI serial E PROM which operates under the high temperature, at high speed, with the wide range operation for automotive components. This IC has the capacity of 256 K-bit and the organization of 32768 words 8-bit. Page write and Sequential read are available. Caution Before using the product in automobile control unit or medical equipment, contact to ABLIC Inc. is indispensable. Features Package Operating voltage range 8-Pin SOP (JEDEC) Read: 2.5 V ~ 5.5 V 5 Write: 2.5 V ~ 5.5 V Operation frequency: 5.0 MHz max. 8 Write time: 5.0 ms max. 4 SPI mode (0, 0) and (1, 1) 1 Page write: 64 bytes / page Sequential read Write protect: Software, Hardware (5.0 6.0 t1.75 mm) 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 ) *1 6 *2 Endurance: 10 cycle / word (Ta = 25C) 5 *2 3 10 cycle / word (Ta = 125C) Data retention: 100 years (Ta = 25C) 50 years (Ta = 125C) Memory capacity: 256 K-bit Initial delivery state: FFh, SRWD = 0, BP1 = 0, BP0 = 0 Burn-in specifications: Wafer level burn-in Operation temperature range: Ta = 40C to 125C *3 Lead-free (Sn 100%), halogen-free *4 AEC-Q100 qualified *1. Refer to Enduranc for details. *2. For each address (Word: 8-bit) *3. Refer to Product Name Structur for details. *4. Contact our sales office for details. Remark Refer to3. Product name lis in Product Name Structur for details of package and product. 1 X Decoder Input Control Circuit 2 FOR AUTOMOTIVE 125C OPERATION SPI SERIAL E PROM S-25A256B Rev.1.2 02 Block Diagram Step-up Circuit Voltage Detector Page Latch CS Clock Counter Memory SCK Mode Cell SI Decoder Array HOLD Data Register WP Status Memory Cell Array Y Decoder Address Register Status Register Output SO Control Read Circuit Circuit VCC GND Figure 1 2