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MB1422A - Fujitsu

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MB1422A DRAM Controller LSI

Type Pin Name and Function I Internal/External Refresh Select; This pin is used to select refresh mode, internal refresh or external refresh. If MODEO/RESET ~ "H", internal refresh mode is selected. If MODEO/RESET ~ "L", external refresh mode. The falling edge of MODEO/RESET resets the refresh address counter. I Internal Interval Select/External Re.

Features

LCC (Suffix: -PO) ABSOLUTE MAXIMUM RATINGS Parameter Symbol Powery Supply Voltage Vee Input Voltage VI Output Voltage Vo Operating Temperature Top Storage Temperature TSTG Rating Unit +7.0 V -0.5 to +5.5 V -0.5 to +5.5 V -25 to +85 °c -55 to +125 °c t-J,CTE: !'i;iiiiianeiit deviCe damage Iltay occur if ABSOLUTE MAXiMUM RATINGS are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 3-2 PLAST.

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