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Hitachi Semiconductor - 262144-word x 16-bit Dynamic Random Access Memory

Numéro de référence HM51S4260C
Description 262144-word x 16-bit Dynamic Random Access Memory
Fabricant Hitachi Semiconductor 
Logo Hitachi Semiconductor 





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HM51S4260C fiche technique
HM514260C Series
HM51S4260C Series
262,144-word × 16-bit Dynamic Random Access Memory
ADE-203-260A (Z)
Rev. 1.0
Jun. 12, 1995
Description
The Hitachi HM51(S)4260C is CMOS dynamic RAM organized as 262,144-word × 16-bit. HM51(S)4260C
has realized higher density, higher performance and various functions by employing 0.8 µm CMOS process
technology and some new CMOS circuit design technologies. The HM51(S)4260C offers fast page mode as a
high speed access mode. Multiplexed address input permits the HM51(S)4260C to be packaged in standard
400-mil 40-pin plastic SOJ and standard 400-mil 44-pin plastic TSOPII. Internal refresh timer enables
HM51S4260C self refresh operation.
Features
• Single 5 V (±10%) (HM51(S)4260C-6/7/8)
(±5%) (HM51(S)4260C-6R)
• High speed
— Access time: 60 ns/70 ns/80 ns (max)
• Low power dissipation
— Active mode: 825 mW/788 mW/770 mW/688 mW (max)
— Standby mode: 11 mW (max) (HM51(S)4260C-6/7/8)
10.5 mW (max) (HM51(S)4260C-6R)
1.1 mW (max) (L-version) (HM51(S)4260C-6/7/8)
1.05 mW (max) (L-version) (HM51(S)4260C-6R)
• Fast page mode capability
• 512 refresh cycles: 8 ms
128 ms (L-version)
• 2 CAS-byte control
• 2 variations of refresh
RAS-only refresh
CAS-before-RAS refresh
• Battery backup operation (L-version)
• Self refresh operation (HM51S4260C)

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