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W9825G6KH

4 M  4 BANKS  16 BITS SDRAM

Publication Release Date: Jun. 01, 2016

Revision: A03

- 1 -

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 3

2. FEATURES ................................................................................................................................. 3

3. ORDER INFORMATION ............................................................................................................. 3

4. PIN CONFIGURATION ............................................................................................................... 4

5. PIN DESCRIPTION ..................................................................................................................... 5

6. BLOCK DIAGRAM ...................................................................................................................... 6

7. FUNCTIONAL DESCRIPTION .................................................................................................... 7

7.1 Power Up and Initialization ............................................................................................. 7

7.2 Programming Mode Register .......................................................................................... 7

7.3 Bank Activate Command ................................................................................................ 7

7.4 Read and Write Access Modes ...................................................................................... 7

7.5 Burst Read Command .................................................................................................... 8

7.6 Burst Write Command .................................................................................................... 8

7.7 Read Interrupted by a Read ........................................................................................... 8

7.8 Read Interrupted by a Write ............................................................................................ 8

7.9 Write Interrupted by a Write ............................................................................................ 8

7.10 Write Interrupted by a Read ............................................................................................ 8

7.11 Burst Stop Command ..................................................................................................... 8

7.12 Addressing Sequence of Sequential Mode .................................................................... 9

7.13 Addressing Sequence of Interleave Mode ...................................................................... 9

7.14 Auto-precharge Command ........................................................................................... 10

7.15 Precharge Command .................................................................................................... 10

7.16 Self Refresh Command ................................................................................................ 10

7.17 Power Down Mode........................................................................................................ 11

7.18 No Operation Command ............................................................................................... 11

7.19 Deselect Command ...................................................................................................... 11

7.20 Clock Suspend Mode .................................................................................................... 11

8. OPERATION MODE ................................................................................................................. 12

9. ELECTRICAL CHARACTERISTICS ......................................................................................... 13

9.1 Absolute Maximum Ratings .......................................................................................... 13

9.2 Recommended DC Operating Conditions .................................................................... 13

9.3 Capacitance .................................................................................................................. 14

9.4 DC Characteristics ........................................................................................................ 14

9.5 AC Characteristics and Operating Condition ................................................................ 15

10. TIMING WAVEFORMS ............................................................................................................. 17

10.1 Command Input Timing ................................................................................................ 17

10.2 Read Timing .................................................................................................................. 18

10.3 Control Timing of Input/Output Data ............................................................................. 19

10.4 Mode Register Set Cycle .............................................................................................. 20

11. OPERATING TIMING EXAMPLE ............................................................................................. 21

W9825G6KH

Publication Release Date: Jun. 01, 2016

Revision: A03

- 2 -

11.1 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3) ...................................... 21

11.2 Interleaved Bank Read (Burst Length = 4, CAS Latency = 3, Auto-precharge) ........... 22

11.3 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3) ...................................... 23

11.4 Interleaved Bank Read (Burst Length = 8, CAS Latency = 3, Auto-precharge) ........... 24

11.5 Interleaved Bank Write (Burst Length = 8) ................................................................... 25

11.6 Interleaved Bank Write (Burst Length = 8, Auto-precharge) ........................................ 26

11.7 Page Mode Read (Burst Length = 4, CAS Latency = 3)............................................... 27

11.8 Page Mode Read / Write (Burst Length = 8, CAS Latency = 3) ................................... 28

11.9 Auto-precharge Read (Burst Length = 4, CAS Latency = 3) ........................................ 29

11.10 Auto-precharge Write (Burst Length = 4) .................................................................... 30

11.11 Auto Refresh Cycle ..................................................................................................... 31

11.12 Self Refresh Cycle ....................................................................................................... 32

11.13 Burst Read and Single Write (Burst Length = 4, CAS Latency = 3) ............................ 33

11.14 Power Down Mode ...................................................................................................... 34

11.15 Auto-precharge Timing (Read Cycle) .......................................................................... 35

11.16 Auto-precharge Timing (Write Cycle) .......................................................................... 36

11.17 Timing Chart of Read to Write Cycle ........................................................................... 37

11.18 Timing Chart of Write to Read Cycle ........................................................................... 37

11.19 Timing Chart of Burst Stop Cycle (Burst Stop Command) .......................................... 38

11.20 Timing Chart of Burst Stop Cycle (Precharge Command) .......................................... 38

11.21 CKE/DQM Input Timing (Write Cycle) ......................................................................... 39

11.22 CKE/DQM Input Timing (Read Cycle) ......................................................................... 40

12. PACKAGE SPECIFICATION .................................................................................................... 41

13. REVISION HISTORY ................................................................................................................ 42

W9825G6KH

Publication Release Date: Jun. 01, 2016

Revision: A03

- 3 -

1. GENERAL DESCRIPTION

W9825G6KH is a high-speed synchronous dynamic random access memory (SDRAM), organized as

4M words  4 banks  16 bits. W9825G6KH delivers a data bandwidth of up to 200M words per

second. To fully comply with the personal computer industrial standard, W9825G6KH is sorted into the

following speed grades: -5, -5I, -6, -6I, -6L, -75 and 75L. The -5/-5I grade parts are compliant to the

200MHz/CL3 specification (the -5I industrial grade which is guaranteed to support -40°C ≤ TA ≤ 85°C).

The -6/-6I/-6L grade parts are compliant to the 166MHz/CL3 specification (the -6I industrial grade

which is guaranteed to support -40°C ≤ TA ≤ 85°C). The -75/75L is compliant to the 133MHz/CL3

specification. The -6L and 75L parts support self refresh current IDD6 max. 1.5 mA.

Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be

accessed at a burst length of 1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE

command. Column addresses are automatically generated by the SDRAM internal counter in burst

operation. Random column read is also possible by providing its address at each clock cycle. The

multiple bank nature enables interleaving among internal banks to hide the precharging time.

By having a programmable Mode Register, the system can change burst length, latency cycle,

interleave or sequential burst to maximize its performance. W9825G6KH is ideal for main memory in

high performance applications.

2. FEATURES

 3.3V ± 0.3V Power Supply

 Up to 200 MHz Clock Frequency

 4,194,304 Words  4 Banks  16 Bits Organization

 Self Refresh Mode: Standard and Low Power

 CAS Latency: 2 and 3

 Burst Length: 1, 2, 4, 8 and Full Page

 Burst Read, Single Writes Mode

 Byte Data Controlled by LDQM, UDQM

 Power Down Mode

 Auto-precharge and Controlled Precharge

 8K Refresh Cycles/64 mS

 Interface: LVTTL

 Packaged in TSOP II 54-pin, 400 mil - 0.80, using Lead free materials with RoHS compliant

3. ORDER INFORMATION

PART NUMBER

SPEED GRADE

SELF REFRESH

CURRENT (MAX)

OPERATING

TEMPERATURE

W9825G6KH-5

200MHz/CL3 or 133MHz/CL2

2 mA

0°C ~ 70°C

W9825G6KH-5I

200MHz/CL3 or 133MHz/CL2

2 mA

-40°C ~ 85°C

W9825G6KH-6

166MHz/CL3 or 133MHz/CL2

2 mA

0°C ~ 70°C

W9825G6KH-6I

166MHz/CL3 or 133MHz/CL2

2 mA

-40°C ~ 85°C

W9825G6KH-6L

166MHz/CL3 or 133MHz/CL2

1.5 mA

0°C ~ 70°C

W9825G6KH-75

133MHz/CL3 or 100MHz/CL2

2 mA

0°C ~ 70°C

W9825G6KH75L

133MHz/CL3 or 100MHz/CL2

1.5 mA

0°C ~ 70°C

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