w9425g6eh Winbond Electronics Corp America, w9425g6eh Datasheet - Page 25

• Manufacturer Part Number: w9425g6eh
• Description: 4 M ? 4 Banks ? 16 Bits Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

9.5
I
I
I
I
I
I
I
I
SYM.
DD4W
I
I
DD2N
DD2Q
DD3N
DD4R
I
I
I
DD2P
DD2F
DD3P
DD0
DD1
DD5
DD6
DD7
DC Characteristics
Operating current: One Bank Active-Precharge; t
min; t
per clock cycle; Address and control inputs changing once
per clock cycle
Operating current: One Bank Active-Read-Precharge; Burst =
2; t
and control inputs changing once per clock cycle.
Precharge Power Down standby current: All Banks Idle;
Power down mode; CKE < V
for DQ, DQS and DM
Idle floating standby current: CS > V
CKE > V
once per clock cycle; Vin = Vref for DQ, DQS and DM
Idle standby current: CS > V
V
changing once per clock cycle; Vin > V
max for DQ, DQS and DM
Idle quiet standby current: CS > V
CKE > V
inputs stable; Vin > V
Active Power Down standby current: One Bank Active; Power
down mode; CKE < V
Active standby current: CS > V
Bank Active-Precharge; t
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=3; t
Operating current: Burst = 2; Write; Continuous burst; One
Bank Active; Address and control inputs changing once per
clock cycle; CL = 3; t
changing twice per clock cycle
Auto Refresh current: t
Self Refresh current: CKE < 0.2V
Random Read current: 4 Banks Active Read with activate
every 20nS, Auto-precharge Read every 20 nS; Burst = 4;
t
twice per clock cycle; Address changing once per clock cycle
RCD
IH
RC
min; t
= 3; I
CK
= t
= t
IH
IH
RC
CK
OUT
min; Address and other control inputs changing
min; t
CK
min; CL = 3; t
= t
= 0mA; DQ, DM and DQS inputs changing
min; DQ, DM and DQS inputs changing twice
CK
CK
min; Address and other control inputs
CK
= t
CK
REF
IL
CK
= t
RC
PARAMETER
max; t
= t
RC
min; Address and other control
CK
for DQ, DQS and DM
CK
= t
CK
= t
min; I
= t
RFC
IL
min; DQ, DM and DQS inputs
CK
IH
RAS
max; t
CK
min
min; All Banks Idle; CKE >
= t
IH
OUT
min; I
max; t
min; CKE > V
CK
IH
CK
= 0mA
min; All Banks Idle;
IH
min
IH
OUT
= t
min; All Banks Idle;
CK
min or Vin < V
CK
= 0 mA; Address
= t
min; Vin = V
CK
RC
IH
min; DQ,
- 25 -
min; One
= t
RC
IL
REF
110
150
210
210
190
300
20
45
45
40
20
70
-4
3
Publication Release Date:May 07, 2008
110
150
180
180
190
300
20
45
45
40
20
70
-5
3
MAX.
110
150
170
170
190
300
20
45
45
40
20
70
-6
3
W9425G6EH
110
150
160
160
190
300
-75
20
40
40
35
20
65
3
UNIT
mA
Revision A05
NOTES
7, 9
7, 9
7
7
7
7
7
7
7