900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Winbond

W9412G6KH Datasheet Preview

W9412G6KH Datasheet

2M x 4-BANKS x 16-BITS DDR SDRAM

No Preview Available !

W9412G6KH
2M 4 BANKS 16 BITS DDR SDRAM
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 4
2. FEATURES ................................................................................................................................. 4
3. ORDER INFORMATION ............................................................................................................. 4
4. KEY PARAMETERS ................................................................................................................... 5
5. PIN CONFIGURATION ............................................................................................................... 6
6. PIN DESCRIPTION..................................................................................................................... 7
7. BLOCK DIAGRAM ...................................................................................................................... 8
8. FUNCTIONAL DESCRIPTION.................................................................................................... 9
8.1 Power Up Sequence....................................................................................................... 9
8.2 Command Function ...................................................................................................... 10
8.2.1
Bank Activate Command ........................................................................... 10
8.2.2
Bank Precharge Command........................................................................ 10
8.2.3
Precharge All Command............................................................................ 10
8.2.4
Write Command ......................................................................................... 10
8.2.5
Write with Auto-precharge Command........................................................ 10
8.2.6
Read Command ......................................................................................... 10
8.2.7
Read with Auto-precharge Command ....................................................... 10
8.2.8
Mode Register Set Command.................................................................... 11
8.2.9
Extended Mode Register Set Command ................................................... 11
8.2.10 No-Operation Command............................................................................ 11
8.2.11 Burst Read Stop Command ....................................................................... 11
8.2.12 Device Deselect Command ....................................................................... 11
8.2.13 Auto Refresh Command ............................................................................ 11
8.2.14 Self Refresh Entry Command .................................................................... 12
8.2.15 Self Refresh Exit Command....................................................................... 12
8.2.16 Data Write Enable /Disable Command ...................................................... 12
8.3 Read Operation............................................................................................................. 12
8.4 Write Operation............................................................................................................. 13
8.5 Precharge ..................................................................................................................... 13
8.6 Burst Termination.......................................................................................................... 13
8.7 Refresh Operation......................................................................................................... 13
8.8 Power Down Mode ....................................................................................................... 14
8.9 Input Clock Frequency Change during Precharge Power Down Mode........................ 14
8.10 Mode Register Operation.............................................................................................. 14
8.10.1 Burst Length field (A2 to A0)...................................................................... 14
8.10.2 Addressing Mode Select (A3) .................................................................... 15
8.10.3 CAS Latency field (A6 to A4) ..................................................................... 16
8.10.4 DLL Reset bit (A8) ..................................................................................... 16
8.10.5 Mode Register /Extended Mode register change bits (BA0, BA1)............. 16
Publication Release Date: Nov. 17, 2014
Revision: A03
-1-




Winbond

W9412G6KH Datasheet Preview

W9412G6KH Datasheet

2M x 4-BANKS x 16-BITS DDR SDRAM

No Preview Available !

W9412G6KH
8.10.6 Extended Mode Register field.................................................................... 16
8.10.7 Reserved field ............................................................................................ 16
9. OPERATION MODE ................................................................................................................. 17
9.1 Simplified Truth Table................................................................................................... 17
9.2 Function Truth Table..................................................................................................... 18
9.3 Function Truth Table for CKE ....................................................................................... 21
9.4 Simplified Stated Diagram ............................................................................................ 22
10. ELECTRICAL CHARACTERISTICS......................................................................................... 23
10.1 Absolute Maximum Ratings .......................................................................................... 23
10.2 Recommended DC Operating Conditions .................................................................... 23
10.3 Capacitance .................................................................................................................. 24
10.4 Leakage and Output Buffer Characteristics.................................................................. 24
10.5 DC Characteristics ........................................................................................................ 25
10.6 AC Characteristics and Operating Condition................................................................ 26
10.7 AC Test Conditions....................................................................................................... 27
11. SYSTEM CHARACTERISTICS FOR DDR SDRAM................................................................. 29
11.1 Table 1: Input Slew Rate for DQ, DQS, and DM .......................................................... 29
11.2 Table 2: Input Setup & Hold Time Derating for Slew Rate ........................................... 29
11.3 Table 3: Input/Output Setup & Hold Time Derating for Slew Rate ............................... 29
11.4 Table 4: Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate................ 29
11.5 Table 5: Output Slew Rate Characteristics (x16 Devices only).................................... 29
11.6 Table 6: Output Slew Rate Matching Ratio Characteristics ......................................... 30
11.7 Table 7: AC Overshoot/Undershoot Specification for Address and Control Pins......... 30
11.8 Table 8: Overshoot/Undershoot Specification for Data, Strobe, and Mask Pins.......... 31
11.9 System Notes:............................................................................................................... 32
12. TIMING WAVEFORMS ............................................................................................................. 34
12.1 Command Input Timing ................................................................................................ 34
12.2 Timing of the CLK Signals ............................................................................................ 34
12.3 Read Timing (Burst Length = 4) ................................................................................... 35
12.4 Write Timing (Burst Length = 4).................................................................................... 36
12.5 DM, DATA MASK (W9412G6KH)................................................................................. 37
12.6 Mode Register Set (MRS) Timing................................................................................. 38
12.7 Extend Mode Register Set (EMRS) Timing .................................................................. 39
12.8 Auto-precharge Timing (Read Cycle, CL = 2) .............................................................. 40
12.9 Auto-precharge Timing (Read cycle, CL = 2), continued ............................................. 41
12.10 Auto-precharge Timing (Write Cycle) .......................................................................... 42
12.11 Read Interrupted by Read (CL = 2, BL = 2, 4, 8) ........................................................ 43
12.12 Burst Read Stop (BL = 8) ............................................................................................ 43
12.13 Read Interrupted by Write & BST (BL = 8).................................................................. 44
12.14 Read Interrupted by Precharge (BL = 8) ..................................................................... 44
12.15 Write Interrupted by Write (BL = 2, 4, 8) ..................................................................... 45
12.16 Write Interrupted by Read (CL = 2, BL = 8) ................................................................ 45
12.17 Write Interrupted by Read (CL = 3, BL = 4) ................................................................ 46
12.18 Write Interrupted by Precharge (BL = 8) ..................................................................... 46
12.19 2 Bank Interleave Read Operation (CL = 2, BL = 2) ................................................... 47
Publication Release Date: Nov. 17, 2014
Revision: A03
-2-


Part Number W9412G6KH
Description 2M x 4-BANKS x 16-BITS DDR SDRAM
Maker Winbond
PDF Download

W9412G6KH Datasheet PDF





Similar Datasheet

1 W9412G6KH 2M x 4-BANKS x 16-BITS DDR SDRAM
Winbond





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy