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How should control pins of Renesas SRAM be dealt with in BYTE mode?

Latest Updated:03/16/2012

Question:

How should control pins of Renesas SRAM be dealt with in BYTE mode?

Answer:

When using BYTE mode (x8 bit mode), please connect as follows.
BYTE# = Low, UB# = LB# = Low
In this mode, because the memory area is double that of WORD mode (x16 bit mode), the DQ15/A-1 pin needs to be used as an additional address pin. Unused pins (DQ8 to DQ14) may be connected to Vcc or GND, or left unconnected.
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