W9725G6IB-25 Winbond Electronics, W9725G6IB-25 Datasheet - Page 2
W9725G6IB-25
Manufacturer Part Number
W9725G6IB-25
Description
IC DDR2-800 SDRAM 256MB 84-WBGA
Manufacturer
Winbond Electronics
Datasheet
1.W9725G6IB-25.pdf
(84 pages)
Specifications of W9725G6IB-25
Format - Memory
RAM
Memory Type
DDR2 SDRAM
Memory Size
256M (16Mx16)
Speed
2.5ns
Interface
Parallel
Voltage - Supply
1.7 V ~ 1.9 V
Operating Temperature
0°C ~ 85°C
Package / Case
84-WBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W9725G6IB-25
Manufacturer:
Winbond Electronics
Quantity:
10 000
8.
9.
10.
7.5
7.6
7.7
7.8
7.9
7.10
8.1
8.2
8.3
8.4
8.5
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
9.11
9.12
9.13
9.14
10.1
10.2
7.4.2
7.4.3
7.4.4
7.4.5
7.6.1
7.6.2
7.7.1
7.7.2
7.9.1
7.9.2
9.9.1
9.14.1
9.14.2
Burst Interrupt .....................................................................................................................................26
Precharge operation............................................................................................................................27
Auto-precharge operation ...................................................................................................................27
Refresh Operation...............................................................................................................................29
Power Down Mode..............................................................................................................................29
Input clock frequency change during precharge power down .............................................................30
OPERATION MODE ...........................................................................................................................31
Command Truth Table ........................................................................................................................31
Clock Enable (CKE) Truth Table for Synchronous Transitions............................................................32
Data Mask (DM) Truth Table...............................................................................................................32
Function Truth Table ...........................................................................................................................33
Simplified Stated Diagram...................................................................................................................36
ELECTRICAL CHARACTERISTICS ...................................................................................................37
Absolute Maximum Ratings.................................................................................................................37
Operating Temperature Condition.......................................................................................................37
Recommended DC Operating Conditions ...........................................................................................37
ODT DC Electrical Characteristics ......................................................................................................38
Input DC Logic Level...........................................................................................................................38
Input AC Logic Level ...........................................................................................................................38
Capacitance ........................................................................................................................................39
Leakage and Output Buffer Characteristics ........................................................................................39
DC Characteristics ..............................................................................................................................40
IDD Measurement Test Parameters....................................................................................................42
AC Characteristics ..............................................................................................................................43
AC Input Test Conditions ....................................................................................................................63
Differential Input/Output AC Logic Levels ...........................................................................................63
AC Overshoot / Undershoot Specification ...........................................................................................64
TIMING WAVEFORMS .......................................................................................................................65
Command Input Timing.......................................................................................................................65
Timing of the CLK Signals...................................................................................................................65
Burst mode operation.......................................................................................................24
Burst read mode operation...............................................................................................25
Burst write mode operation ..............................................................................................25
Write data mask ...............................................................................................................26
Burst read operation followed by precharge.....................................................................27
Burst write operation followed by precharge ....................................................................27
Burst read with Auto-precharge........................................................................................28
Burst write with Auto-precharge .......................................................................................28
Power Down Entry ...........................................................................................................30
Power Down Exit..............................................................................................................30
DC Characteristics for -25/-3 speed grades .....................................................................40
AC Overshoot / Undershoot Specification for Address and Control Pins: ........................64
AC Overshoot / Undershoot Specification for Clock, Data, Strobe and Mask pins:..........64
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Publication Release Date: Oct. 23, 2009
W9725G6IB
Revision A04