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Rev. 1.0, 07/03, page 1 of 38

Section 1 How to Use the Application Notes

1.1 Configuration of SDRAM Interface Examples

The SDRAM interface examples in this application note consists of the following sections to

describe the SDRAM interface method.

•

SDRAM interface examples in this application note:



Bus state controller (BSC) settings

This subsection describes the BSC settings when SDRAM is connected.



Interface circuit diagram

This subsection shows SDRAM interface circuit examples.

Note that this application note describes the SDRAM interfaces based on the MCU and SDRAM

types summarized below.

MCU SDRAM

HM5264165F-B60 (1 Mword × 16 bits × 4 banks)

uPD45128163-A10 (2 Mwords × 16 bits × 4 banks)

HM5225165B-B6 (4 Mwords × 16 bits × 4 banks)

SH7709S/SH7729R/SH7706

HM5257165B-A6 (8 Mwords × 16 bits × 4 banks)

HM5264165F-B60 (1 Mword × 16 bits × 4 banks)

uPD45128163-A10 (2 Mwords × 16 bits × 4 banks)

HM5225165B-B6 (4 Mwords × 16 bits × 4 banks)

SH7727

HM5257165B-A6 (8 Mwords × 16 bits × 4 banks)

Note:

Elpida Memory Inc. products.

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