Datasheet
Table Of Contents
- Description
- Fetures
- Ordering Information
- Key Parameters
- Speed Grade
- Address Table
- Pin Descriptions
- Input/Output Functional Descriptions
- Pin Assignments
- Functional Block Diagram
- Absolute Maximum Ratings
- AC & DC Operating Conditions
- AC & DC Input Measurement Levels
- Vref Tolerances
- AC and DC Logic Input Levels for Differential Signals
- AC & DC Output Measurement Levels
- Overshoot and Undershoot Specifications
- Refresh parameters by device density
- Standard Speed Bins
- IDD and IDDQ Specification Parameters and Test Conditions
- IDD Specifications (Tcase: 0 to 95oC)
- Module Dimensions

Rev. 1.0/Sep. 2012 28
Refresh parameters by device density
Refresh parameters by device density
Parameter RTT_Nom Setting 512Mb 1Gb 2Gb 4Gb 8Gb Units
REF command ACT or
REF command time
tRFC 90 110 160 260 350 ns
Average periodic
refresh interval
tREFI
0
C T
CASE
85 C 7.8 7.8 7.8 7.8 7.8 us
85
C T
CASE
95 C 3.9 3.9 3.9 3.9 3.9 us