NT256D72S89AKGU Nanya Technology, NT256D72S89AKGU Datasheet - Page 10

• Manufacturer Part Number: NT256D72S89AKGU
• Description: 256MB DDR SDRAM DIMM
• Manufacturer: Nanya Technology

NT256D72S89AKGU
256MB : 32M x 72
Low Profile Registered DDR SDRAM DIMM
Operating, Standby, and Refresh Currents
(TA = 0 °C ~ 70 °C; V
1.
2.
3.
4.
REV 1.1
12/2002
Symbol
I
I
I
I
I
I
I
I
I
I
I
DD4W
DD2P
DD2N
DD3P
DD3N
DD4R
DD0
DD1
DD5
DD6
DD7
I
Input slew rate = 1V/ ns.
Enables on-chip refresh and address counters.
Current at 7.8 µs is time-averaged value of I
DD
specifications are tested after the device is properly initialized.
Operating Current: one bank; active/precharge; t
(MIN);
and control inputs changing once per clock cycle
Operating Current: one bank; active/read/precharge; Burst = 2; t
(MIN);
changing once per clock cycle
Precharge Power-Down Standby Current: all banks idle; power-down
mode; CKE ≤ V
Idle Standby Current: CS ≥ V
t
Active Power-Down Standby Current: one bank active; power-down mode;
CKE ≤ V
Active Standby Current: one bank; active/precharge; CS ≥ V
V
changing twice per clock cycle; address and control inputs changing once
per clock cycle
Operating Current: one bank; Burst = 2; reads; continuous burst; address
and control inputs changing once per clock cycle; DQ and DQS outputs
changing twice per clock cycle; CL = 2.5; t
Operating Current: one bank; Burst = 2; writes; continuous burst; address
and control inputs changing once per clock cycle; DQ and DQS inputs
changing twice per clock cycle; CL=2.5; t
Auto-Refresh Current: t
Self-Refresh Current: CKE ≤ 0.2V
Operating Current: four bank; four bank interleaving with BL = 4, address
and control inputs randomly changing; 50% of data changing at every
transfer; t
CK (MIN);
IH (MIN);
DQ, DM, and DQS inputs changing twice per clock cycle; address
CL=2.5; t
IL (MAX);
address and control inputs changing once per clock cycle
RC
t
RC
DDQ
= t
= t
= 2.5V ± 0.2V; V
CK
RC
IL (MAX);
RAS (MAX)
t
CK
= t
(min); I
CK (MIN);
= t
CK (MIN)
RC
t
CK
; t
OUT
= t
Parameter/Condition
CK
= t
IH (MIN);
RFC (MIN)
I
= 0mA.
OUT
CK (MIN)
= t
DD
CK (MIN)
= 2.5V ± 0.2V, See AC Characteristics)
= 0mA; address and control inputs
all banks idle; CKE ≥ V
DD5
; DQ, DM, and DQS inputs
CK
CK
at t
= t
= t
RFC (MIN)
CK (MIN)
CK (MIN);
RC
= t
RC (MIN);
and I
I
10
OUT
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
IH (MIN)
IH (MIN);
DD2P
= 0mA
t
CK
RC
over 7.8 µs.
= t
; t
= t
CKE ≥
CK
CK
RC
=
(-7K/-75B)
PC2100
1500
1730
1000
1150
2400
2000
2400
3300
800
800
80
PC1600
(-8K)
1230
1410
1000
1980
1500
2000
2880
650
780
650
80
© NANYA TECHNOLOGY CORP.
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
1, 2, 4
Notes
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2