NT256D64S88B1G Nanya Technology, NT256D64S88B1G Datasheet - Page 18

• Manufacturer Part Number: NT256D64S88B1G
• Description: (NT256D64S88Bxx) 256MB DDR DIMM
• Manufacturer: Nanya Technology

1. IDD specifications are tested after the device is properly initialized.
2. Input slew rate = 1V/ ns.
3. Current at 7.8 µs is time averaged value of IDD5 at t
All IDD current values are calculated from device level.
Symbol
IDD4W
IDD2P Precharge Power-Down Standby Current: all banks idle; power-down mode; CKE
IDD2N
IDD3P Active Power-Down Standby Current: one bank active; power-down mode; CKE
IDD3N
IDD4R
IDD0
IDD1
IDD5
IDD6
IDD7
NT512D64S8HB1G / NT512D64S8HB1GY / NT512D64S8HB0G
NT256D64S88B1G / NT256D64S88B1GY NT256D64S88B0G
NT128D64SH4B1G / NT512D72S8PB0G (ECC) / NT256D72S89B0G (ECC)
Unbuffered DDR DIMM
Operating, Standby, and Refresh Currents
T
REV 2.2
Aug 3, 2004
Preliminary
A
= 0 °C ~ 70 °C; V
Operating Current: one bank; active/precharge; t
clock cycle; address and control inputs changing once per clock cycle
Operating Current: one bank; active/read/precharge; Burst = 2; t
control inputs changing once per clock cycle
Idle Standby Current: CS
per clock cycle
Active Standby Current: one bank; active/precharge; CS V
DQS inputs 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
Operating Current: four bank; four bank interleaving with BL = 4, address and control inputs randomly changing; 50% of
data changing at every transfer; t
DDQ
= V
DD
= 2.5V ± 0.2V (PC2100/PC2700); V
RC
= t
V
RFC (MIN)
IH (MIN)
0.2V
RC
; all banks idle; CKE
= t
RC (min)
; I
RFC (MIN)
OUT
RC
= 0mA.
Parameter/Condition
= t
and IDD2P over 7.8 µs.
RC (MIN)
V
DDQ
IH (MIN)
IH (MIN)
; t
18
CK
CK
= V
RC
; t
= t
= t
CK
; CKE V
DD
CK
= t
CK (MIN)
= t
CK (MIN)
= 2.6V ± 0.1V (PC3200)
RC (MIN)
= t
CK (MIN)
CK (MIN)
; DQ, DM, and DQS inputs changing twice per
; CL=2.5; t
IH (MIN)
; I
; address and control inputs changing once
OUT
NANYA reserves the right to change products and specifications without notice.
; t
= 0mA
RC
V
V
IL (MAX)
= t
CK
IL (MAX)
RAS (MAX)
= t
; t
CK (MIN)
; t
CK
CK
= t
; t
= t
; I
CK
CK (MIN)
OUT
CK (MIN)
= t
© NANYA TECHNOLOGY CORPORATION
= 0mA; address and
CK (MIN)
; DQ, DM, and
Notes
1,2,3
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1,2
1,2