w9425g6jb Winbond Electronics Corp America, w9425g6jb Datasheet - Page 2

• Manufacturer Part Number: w9425g6jb
• Manufacturer: Winbond Electronics Corp America

8.
9.
10.
11.
OPERATION MODE .................................................................................................................... 17
8.1
8.2
8.3
8.4
ELECTRICAL CHARACTERISTICS ............................................................................................ 23
9.1
9.2
9.3
9.4
9.5
9.6
9.7
SYSTEM CHARACTERISTICS FOR DDR SDRAM .................................................................... 29
10.1 Table 1: Input Slew Rate for DQ, DQS, and DM ............................................................... 29
10.2 Table 2: Input Setup & Hold Time Derating for Slew Rate ................................................ 29
10.3 Table 3: Input/Output Setup & Hold Time Derating for Slew Rate .................................... 29
10.4 Table 4: Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate .................... 29
10.5 Table 5: Output Slew Rate Characteristics (X16 Devices only) ........................................ 29
10.6 System Notes: ................................................................................................................... 30
TIMING WAVEFORMS ................................................................................................................ 32
11.1 Command Input Timing ..................................................................................................... 32
11.2 Timing of the CLK Signals ................................................................................................. 32
11.3 Read Timing (Burst Length = 4) ........................................................................................ 33
11.4 Write Timing (Burst Length = 4) ........................................................................................ 34
11.5 DM, DATA MASK (W9425G6JB) ...................................................................................... 35
11.6 Mode Register Set (MRS) Timing ..................................................................................... 36
11.7 Extend Mode Register Set (EMRS) Timing ....................................................................... 37
11.8 Auto-precharge Timing (Read Cycle, CL = 2) ................................................................... 38
11.9 Auto-precharge Timing (Read cycle, CL = 2), continued .................................................. 39
7.10.1 Burst Length field (A2 to A0) .................................................................................. 14
7.10.2 Addressing Mode Select (A3) ................................................................................. 15
7.10.3 CAS Latency field (A6 to A4) .................................................................................. 16
7.10.4 DLL Reset bit (A8) .................................................................................................. 16
7.10.5 Mode Register /Extended Mode register change bits (BA0, BA1) ......................... 16
7.10.6 Extended Mode Register field ................................................................................ 16
7.10.7 Reserved field ......................................................................................................... 16
Simplified Truth Table ........................................................................................................ 17
Function Truth Table ......................................................................................................... 18
Function Truth Table for CKE ............................................................................................ 21
Simplified Stated Diagram ................................................................................................. 22
Absolute Maximum Ratings ............................................................................................... 23
Recommended DC Operating Conditions ......................................................................... 23
Capacitance ....................................................................................................................... 24
Leakage and Output Buffer Characteristics ...................................................................... 24
DC Characteristics ............................................................................................................. 25
AC Characteristics and Operating Condition ..................................................................... 26
AC Test Conditions ............................................................................................................ 27
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Publication Release Date: Oct. 08, 2010
W9425G6JB
Revision A01