w9425g6eb Winbond Electronics Corp America, w9425g6eb Datasheet - Page 26

• Manufacturer Part Number: w9425g6eb
• Description: 4 M ? 4 Banks ? 16 Bits Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

9.5
SYM.
I
I
I
I
I
I
I
I
DD4W
DD2Q
I
I
DD2P
DD2F
DD2N
DD3P
DD3N
DD4R
I
I
I
DD0
DD1
DD5
DD6
DD7
DC Characteristics
Operating current: One Bank Active-Precharge;
t
DQ, DM and DQS inputs changing once per clock cycle;
Address and control inputs changing once every two clock cycles
Operating current: One Bank Active-Read-Precharge;
Burst = 4; t
Address and control inputs changing once per clock cycle
Precharge Power Down standby current:
All Banks Idle; Power down mode;
CKE < V
Idle floating standby current:
Address and other control inputs changing once per clock cycle;
Vin = V
Idle standby current:
Address and other control inputs changing once per clock cycle;
Vin > V
Idle quiet standby current:
Address and other control inputs stable;
Vin > V
Active Power Down standby current:
One Bank Active; Power down mode;
CKE < V
Vin = V
Active standby current:
t
DQ, DM and DQS inputs changing twice per clock cycle;
Address and other control inputs changing once per clock cycle
Operating current:
Burst = 2; Reads; Continuous burst; One Bank Active;
Address and control inputs changing once per clock cycle;
CL=2; t
Operating current:
Burst = 2; Write; Continuous burst; One Bank Active;
Address and control inputs changing once per clock cycle;
CL = 2; t
DQ, DM and DQS inputs changing twice per clock cycle
Auto Refresh current: t
Self Refresh current: CKE < 0.2V; external clock on; t
Random Read current: 4 Banks Active Read with activate every 20nS,
Auto-Precharge Read every 20 nS;
Burst = 4; t
DQ, DM and DQS inputs changing twice per clock cycle;
Address changing once per clock cycle
CS > V
CS > V
CS > V
CS > V
RC
RC
= t
= t
RC
RAS
REF
IH
REF
REF
CK
CK
IL
IH
IH
IH
IL
IH
min; t
min or Vin < V
= t
max; t
max; t
max; t
RC
RCD
min; All Banks Idle; CKE > V
min; All Banks Idle; CKE > V
min; All Banks Idle; CKE > V
min; CKE > V
for DQ, DQS and DM
for DQ, DQS and DM
for DQ, DQS and DM
= t
CK
= t
CK
CK
= 3; I
min; I
CK
RC
CK
CK
min;
= t
= t
min; CL = 3; t
= t
= t
OUT
CK
OUT
CK
CK
CK
RC
min;
IL
= 0mA;
IH
min;
min; Vin = V
min;
= 0mA
= t
max for DQ, DQS and DM
PARAMETER
min; One Bank Active-Precharge;
RFC
min
CK
= t
REF
CK
IH
IH
IH
min; I
for DQ, DQS and DM
min; t
min; t
min; t
- 26 -
OUT
CK
CK
CK
= t
= t
= t
= 0 mA;
CK
CK
CK
CK
min;
min;
min;
= t
CK
min
Publication Release Date:Feb. 12, 2009
110
150
180
180
190
300
20
45
45
40
20
70
-5
3
MAX.
W9425G6EB
110
150
170
170
190
300
-6I
20
45
45
40
20
70
3
UNIT NOTES
mA
Revision A02
7, 9
7, 9
7
7
7
7
7
7
7