UPD44164364F5-E50-EQ1 datasheet(9/32 Pages) NEC

Part #	UPD44164364F5-E50-EQ1

Description	18M-BIT DDRII SRAM 4-WORD BURST OPERATION

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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Data Sheet M15822EJ7V

1DS

µµµµPD44164084, 44164184, 44164364

Byte Write Operation

[

µµµµPD44164084]

Operation

K

/K

/NW0

/NW1

Write DQ0 to DQ7

L

→ H

–

0

–

L

→ H

0

Write DQ0 to DQ3

L

→ H

–

0

1

–

L

→ H

0

1

Write DQ4 to DQ7

L

→ H

–

1

0

–

L

→ H

1

0

Write nothing

L

→ H

–

1

–

L

→ H

1

Remark H : High level, L : Low level,

→ : rising edge.

[

µµµµPD44164184]

Operation

K

/K

/BW0

/BW1

Write DQ0 to DQ17

L

→ H

–

0

–

L

→ H

0

Write DQ0 to DQ8

L

→ H

–

0

1

–

L

→ H

0

1

Write DQ9 to DQ17

L

→ H

–

1

0

–

L

→ H

1

0

Write nothing

L

→ H

–

1

–

L

→ H

1

Remark H : High level, L : Low level,

→ : rising edge.

[

µµµµPD44164364]

Operation

K

/K

/BW0

/BW1

/BW2

/BW3

Write DQ0 to DQ35

L

→ H

–

0

–

L

→ H

0

Write DQ0 to DQ8

L

→ H

–

0

1

–

L

→ H

0

1

Write DQ9 to DQ17

L

→ H

–

1

0

1

–

L

→ H

1

0

1

Write DQ18 to DQ26

L

→ H

–

1

0

1

–

L

→ H

1

0

1

Write DQ27 to DQ35

L

→ H

–

1

0

–

L

→ H

1

0

Write nothing

L

→ H

–

1

–

L

→ H

1

Remark H : High level, L : Low level,

→ : rising edge.

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UPD44164364F5-E50-EQ1 Datasheet(PDF) 9 Page - NEC

UPD44164364F5-E50-EQ1 Datasheet(HTML) 9 Page - NEC

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