Internet Data Sheet
HYS72T[512/256]02xHR–[3S/3.7/5]–A
Registered DDR2 SDRAM Modules
3.4
Currents Specifications and Conditions
This chapter contains the Current Specification and Condition tables.
TABLE 18
IDD Measurement Conditions
Parameter
Symbol Note
1)2)3)4)5)
Operating Current 0
IDD0
One bank Active - Precharge; tCK = tCK.MIN, tRC = tRC.MIN, tRAS = tRAS.MIN, CKE is HIGH, CS is HIGH between
valid commands. Address and control inputs are SWITCHING, Databus inputs are SWITCHING.
6)
Operating Current 1
IDD1
One bank Active - Read - Precharge; IOUT = 0 mA, BL = 4, tCK = tCK.MIN, tRC = tRC.MIN, tRAS = tRAS.MIN
,
t
RCD = tRCD.MIN, AL = 0, CL = CLMIN; CKE is HIGH, CS is HIGH between valid commands. Address and
control inputs are SWITCHING, Databus inputs are SWITCHING.
Precharge Standby Current
IDD2N
All banks idle; CS is HIGH; CKE is HIGH; tCK = tCK.MIN; Other control and address inputs are SWITCHING,
Databus inputs are SWITCHING.
Precharge Power-Down Current
Other control and address inputs are STABLE, Data bus inputs are FLOATING.
IDD2P
IDD2Q
Precharge Quiet Standby Current
All banks idle; CS is HIGH; CKE is HIGH; tCK = tCK.MIN; Other control and address inputs are STABLE,
Data bus inputs are FLOATING.
Active Standby Current
IDD3N
Burst Read: All banks open; Continuous burst reads; BL = 4; AL = 0, CL = CLMIN; tCK = tCK.MIN
;
t
RAS = tRAS.MAX, tRP = tRP.MIN; CKE is HIGH, CS is HIGH between valid commands. Address inputs are
SWITCHING; Data Bus inputs are SWITCHING; IOUT = 0 mA.
Active Power-Down Current
All banks open; tCK = tCK.MIN, CKE is LOW; Other control and address inputs are STABLE, Data bus inputs
are FLOATING. MRS A12 bit is set to LOW (Fast Power-down Exit);
IDD3P(0)
IDD3P(1)
IDD4R
Active Power-Down Current
All banks open; tCK = tCK.MIN, CKE is LOW; Other control and address inputs are STABLE, Data bus inputs
are FLOATING. MRS A12 bit is set to HIGH (Slow Power-down Exit);
6)
Operating Current - Burst Read
All banks open; Continuous burst reads; BL = 4; AL = 0, CL = CLMIN; tCK = tCKMIN; tRAS = tRASMAX
;
t
RP = tRPMIN; CKE is HIGH, CS is HIGH between valid commands; Address inputs are SWITCHING; Data
bus inputs are SWITCHING; IOUT = 0mA.
Operating Current - Burst Write
IDD4W
All banks open; Continuous burst writes; BL = 4; AL = 0, CL = CLMIN; tCK = tCK.MIN
;
t
RAS = tRAS.MAX., tRP = tRP.MAX; CKE is HIGH, CS is HIGH between valid commands. Address inputs are
SWITCHING; Data Bus inputs are SWITCHING;
Burst Refresh Current
IDD5B
t
CK = tCK.MIN., Refresh command every tRFC = tRFC.MIN interval, CKE is HIGH, CS is HIGH between valid
commands, Other control and address inputs are SWITCHING, Data bus inputs are SWITCHING.
Distributed Refresh Current
IDD5D
t
CK = tCK.MIN., Refresh command every tRFC = tREFI interval, CKE is LOW and CS is HIGH between valid
commands, Other control and address inputs are SWITCHING, Data bus inputs are SWITCHING.
Rev. 1.2, 2007-01
28
03292006-AYVF-ZIIJ
QIMONDA [ QIMONDA AG ]
