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DD4C16_32x64A.fm - Rev. E 11/08 EN
9 ©2003 Micron Technology, Inc. All rights reserved.
128MB, 256MB (x64, SR) 184-Pin DDR SDRAM UDIMM
Electrical Specifications
Idd Specifications
Table 9: Idd Specifications and Conditions – 128MB (Die Revision K)
Values are for the MT46V16M16 DDR SDRAM only and are computed from values specified in the
256Mb (16 Meg x 16) component data sheet
Parameter/Condition Symbol -40B -335 Units
Operating one device bank active-precharge current:
t
RC =
t
RC (MIN);
t
CK =
t
CK (MIN); DQ, DM, and DQS inputs changing once per clock cycle;
Address and control inputs changing once every two clock cycles
Idd0 400 360 mA
Operating one device bank active-read-precharge current: Burst = 4;
t
RC =
t
RC (MIN);
t
CK =
t
CK (MIN); Iout = 0mA; Address and control inputs
changing once per clock cycle
Idd1 480 460 mA
Precharge power-down standby current: All device banks idle; Power-down
mode;
t
CK =
t
CK (MIN); CKE = LOW
Idd2P 16 16 mA
Idle standby current: CS# = HIGH; All device banks idle;
t
CK =
t
CK (MIN);
CKE = HIGH; Address and other control inputs
changing once per clock cycle;
Vin
=
Vref
for DQ, DQS, and DM
Idd2F 200 200 mA
Active power-down standby current: One device bank active; Power-down
mode;
t
CK =
t
CK (MIN); CKE = LOW
Idd3P 140 120 mA
Active standby current: CS# = HIGH; CKE = HIGH; One device bank active;
t
RC =
t
RAS (MAX);
t
CK =
t
CK (MIN); DQ, DM, and DQS inputs changing twice per
clock cycle; Address and other control inputs changing once per clock cycle
Idd3N 240 220 mA
Operating burst read current: Burst = 2; Continuous burst reads; One device
bank active; Address and control inputs changing once per clock cycle;
t
CK =
t
CK (MIN); Iout = 0mA
Idd4R 720 640 mA
Operating burst write current: Burst = 2; Continuous burst writes; One
device bank active; Address and control inputs changing once per clock cycle;
t
CK =
t
CK (MIN); DQ, DM, and DQS inputs changing twice per clock cycle
Idd4W 720 640 mA
Auto refresh current
t
RFC =
t
RFC (MIN)
Idd5 640 640 mA
t
RFC = 7.8125µs
Idd5A 24 24 mA
Self refresh current: CKE ≤ 0.2V
Idd6 16 16 mA
Operating bank interleave read current: Four device bank interleaving
READs (burst = 4) with auto precharge;
t
RC =
t
RC (MIN);
t
CK =
t
CK (MIN);
Address and control inputs change only during active READ or WRITE
commands
Idd7 1160 1080 mA