Datasheet Summary
HM5225645F-B60 HM5225325F-B60
256M LVTTL interface SDRAM 100 MHz 1-Mword × 64-bit × 4-bank/2-Mword × 32-bit × 4-bank
PC/100 SDRAM
ADE-203-1014C (Z) Rev. 1.0 Oct. 1, 1999 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
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- 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...