HB52R329E22-F Datasheet, PDF (64/66 Pages) Elpida Memory – 256 MB Registered SDRAM DIMM 32-Mword × 72-bit, 100 MHz Memory Bus, 2-Bank Module (36 pcs of 16 M × 4 Components) PC100 SDRAM

HB52R329E22-F
Power Down Mode
CK
CKE
S
; ^;RE
;;;;;;;;;;;;;;;;;;;;;; CE
W
; _BA
CKE Low
Address
A10=1
DQMB
; _Din
Dout
t_RP
Precharge command Power down entry
If needed
;;_{;;;;;;;;;;;;;;;;;;;;}^{;Initialization Sequence}
R: a
High-Z
Power down cycle
Power down
mode exit
RE-CE delay = 3
Active Bank 0 CE latency = 3
Burst length = 4
= V_IH or V_IL
CK
CKE
S
RE
CE
; _W
Address
;; ^DQMB
; ^DQ
0 1 2 3 4 5 6 7 8 9 10
V_IH
48 49 50 51 52 53 54 55
valid
V_IH
t _RP
All banks
Precharge
Auto Refresh
t _RC
Auto Refresh
code
Valid
High-Z
t_RC
t _RSA
Mode register
Set
Bank active
If needed
Data Sheet No. E0112H10
64