w9425g6jb Winbond Electronics Corp America, w9425g6jb Datasheet

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w9425g6jb

Manufacturer Part Number
w9425g6jb
Description
Manufacturer
Winbond Electronics Corp America
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
w9425g6jb-5
Manufacturer:
WINBOND
Quantity:
1 000
Part Number:
w9425g6jb-5
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
w9425g6jb-5
Manufacturer:
WINBOND
Quantity:
8 000
Table of Contents-
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION ............................................................................................................. 4
FEATURES .................................................................................................................................... 4
KEY PARAMETERS ...................................................................................................................... 5
BALL CONFIGURATION ............................................................................................................... 6
BALL DESCRIPTION ..................................................................................................................... 7
BLOCK DIAGRAM ......................................................................................................................... 8
FUNCTIONAL DESCRIPTION ....................................................................................................... 9
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10 Mode Register Operation .................................................................................................. 14
Power Up Sequence ............................................................................................................ 9
Command Function ........................................................................................................... 10
7.2.1 Bank Activate Command ........................................................................................ 10
7.2.2 Bank Precharge Command .................................................................................... 10
7.2.3 Precharge All Command ........................................................................................ 10
7.2.4 Write Command ...................................................................................................... 10
7.2.5 Write with Auto-precharge Command .................................................................... 10
7.2.6 Read Command ...................................................................................................... 10
7.2.7 Read with Auto-precharge Command .................................................................... 10
7.2.8 Mode Register Set Command ................................................................................ 11
7.2.9 Extended Mode Register Set Command ................................................................ 11
7.2.10 No-Operation Command ........................................................................................ 11
7.2.11 Burst Read Stop Command .................................................................................... 11
7.2.12 Device Deselect Command .................................................................................... 11
7.2.13 Auto Refresh Command ......................................................................................... 11
7.2.14 Self Refresh Entry Command ................................................................................. 12
7.2.15 Self Refresh Exit Command ................................................................................... 12
7.2.16 Data Write Enable /Disable Command ................................................................... 12
Read Operation ................................................................................................................. 12
Write Operation ................................................................................................................. 13
Precharge .......................................................................................................................... 13
Burst Termination .............................................................................................................. 13
Refresh Operation ............................................................................................................. 13
Power Down Mode ............................................................................................................ 14
Input Clock Frequency Change during Precharge Power Down Mode ............................ 14
4 M × 4 BANKS × 16 BITS DDR SDRAM
- 1 -
Publication Release Date: Oct. 08, 2010
W9425G6JB
Revision A01

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