K4B4G0446B Datasheet, PDF (3/59 Pages) Samsung semiconductor – DDP 4Gb B-die DDR3 SDRAM Specification

K4B4G0446B
K4B4G0846B
DDP 4Gb DDR3 SDRAM
Table Contents
1.0 Ordering Information ................................................................................................................... 5
2.0 Key Features ................................................................................................................................ 5
3.0 Package pinout/Mechanical Dimension & Addressing ............................................................ 6
3.1 x4 DDP Package Pinout (Top view) : 78ball FBGA Package .............................................................. 6
3.2 x8 DDP Package Pinout (Top view) : 78ball FBGA Package .............................................................. 7
3.3 FBGA Package Dimension (x4) ..................................................................................................... 8
3.4 FBGA Package Dimension (x8) ..................................................................................................... 9
4.0 Input/Output Functional Description ....................................................................................... 10
5.0 DDR3 SDRAM Addressing ........................................................................................................ 11
6.0 Absolute Maximum Ratings ...................................................................................................... 12
6.1 Absolute Maximum DC Ratings ................................................................................................... 12
6.2 DRAM Component Operating Temperature Range ......................................................................... 12
7.0 AC & DC Operation Conditions ................................................................................................ 12
7.1 Recommended DC operating Conditions (SSTL_1.5) ..................................................................... 12
8.0 AC & DC Input Measurement Levels ........................................................................................ 13
8.1 AC and DC Logic input levels for single-ended singnals ................................................................ 13
8.2 VREF Tolerances ....................................................................................................................... 14
8.3 AC and DC Logic Input Levels for Ditterential Signals ................................................................... 15
8.3.1 Differential signal definition ................................................................................................ 15
8.3.2 Differential swing requirement for clock (CK - CK) and strobe (DQS - DQS) .............................. 15
8.3.3 Single-ended requirements for differential signals ................................................................. 16
8.4 Differential Input Cross Point Voltage .......................................................................................... 17
8.5 Slew Rate Definition for Single Ended Input Signals ...................................................................... 17
8.6 Slew rate definition for Differential Input Signals ........................................................................... 17
9.0 AC and DC Output Measurement Levels ................................................................................. 18
9.1 Single Ended AC and DC Output Levels ....................................................................................... 18
9.2 Differential AC and DC Output Levels .......................................................................................... 18
9.3 Single Ended Output Slew Rate ................................................................................................... 18
9.4 Differential Output Slew Rate ...................................................................................................... 19
9.5 Reference Load for AC Timing and Output Slew Rate .................................................................... 19
9.6 Overshoot/Undershoot Specification ........................................................................................... 20
9.6.1 Address and Control Overshoot and Undershoot specifications ............................................. 20
9.6.2 Clock, Data, Strobe and Mask Overshoot and Undershoot specifications ................................. 20
9.7 34 ohm Output Driver DC Electrical Characteristics ....................................................................... 21
9.7.1 Output Drive Temperature and Voltage sensitivity ................................................................. 22
9.8 On-Die Termination (ODT) Levels and I-V Characteristics ............................................................... 22
9.8.1 ODT DC electrical characteristics ........................................................................................ 23
9.8.2 ODT Temperature and Voltage sensitivity ............................................................................. 24
Page 3 of 59
Rev. 1.0 March 2009