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HM5225325F Hoja de datos - Hitachi -> Renesas Electronics

Número de piezaDescripción (Función)Fabricante
HM5225325F 256M LVTTL interface SDRAM 100 MHz 1-Mword × 64-bit × 4-bank/2-Mword × 32-bit × 4-bank PC/100 SDRAM Hitachi
Hitachi -> Renesas Electronics Hitachi
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HM5225325F Ficha de datos PDF : HM5225325F pdf   
HM5225645F-B60 image

Description
The Hitachi HM5225645F is a 256-Mbit SDRAM organized as 1048576-word × 64-bit × 4-bank. The Hitachi HM5225325F is a 256-Mbit SDRAM organized as 2097152-word × 32-bit × 4-bank. All inputs and outputs are referred to the rising edge of the clock input. It is packaged in standard 108 bump BGA.

Features
• Single chip wide bit solution (× 64/× 32)
• 3.3 V power supply
• Clock frequency: 100 MHz (max)
• LVTTL interface
• Extremely small foot print: 1.27 mm pitch
    - Package: BGA (BP-108)
• 4 banks can operate simultaneously and independently
• Burst read/write operation and burst read/single write operation capability
• Programmable burst length: 4/8/full page
• 2 variations of burst sequence
    - Sequential (BL = 4/8/full page)
    - Interleave (BL = 4/8)
• Programmable CAS latency: 2/3
• Byte control by DQMB

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