2. Ordering Information ..................................................................................................................................................... 4
7. Input/Output Function Description ................................................................................................................................ 8
8. Command Truth Table .................................................................................................................................................. 9
9. General Description ...................................................................................................................................................... 10
10. Absolute Maximum Rating .......................................................................................................................................... 10
11. DC Operating Conditions ............................................................................................................................................ 10
12. DDR SDRAM Spec Items & Test Conditions .............................................................................................................. 11
16. AC Operating Conditions ............................................................................................................................................ 14
17. AC Overshoot/Undershoot specification for Address and Control Pins ...................................................................... 14
18. Overshoot/Undershoot specification for Data, Strobe and Mask Pins ........................................................................ 15
19. AC Timing Parameters & Specifications ..................................................................................................................... 16
20. System Characteristics for DDR SDRAM ................................................................................................................... 17
22. System Notes.............................................................................................................................................................. 20
23. IBIS : I/V Characteristics for Input and Output Buffers................................................................................................ 21
-3-
K4H560438N
K4H560838N
K4H561638N
datasheet
Rev. 1.01
DDR SDRAM
1. Key Features
• V
DD
: 2.5V ± 0.2V, V
DDQ
: 2.5V ± 0.2V
• Double-data-rate architecture; two data transfers per clock cycle
• Bidirectional data strobe [DQS] (x4,x8) & [L(U)DQS] (x16)
• Four banks operation
• Differential clock inputs(CK and CK)
• DLL aligns DQ and DQS transition with CK transition