HB52R329E22-F Datasheet, PDF (63/66 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

Clock Suspend Mode
HB52R329E22-F
CK
CKE
S
RE
CE
W
;BA
;;;;;;;;;;;;;; Address
DQMB
Dout
;;;;;^;;;Din
CKE
S
RE
CE
W
; _BA
Address
DQMB
;;;;;^{;;;;;;;; Dout}
;^Din
t_CES
t_CEH
t_CES
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Read cycle
RE-CE delay = 2
CE latency = 3
Burst length = 4
= V_IH or V_IL
R:a
Bank0 Active clock
Active suspend start
C:a
R:b
C:b
a a+1 a+2
High-Z
a+3
b b+1 b+2 b+3
Active clock Bank0
suspend end Read
Bank3 Read suspend Read suspend Bank3 Bank0
Active
start
end Read Precharge
Earliest Bank3
Precharge
Write cycle
RE-CE delay = 2
CE latency = 3
Burst length = 4
= V_IH or V_IL
R:a
Bank0 Active clock
Active suspend start
C:a R:b
C:b
High-Z
a a+1 a+2
a+3 b b+1 b+2 b+3
Active clock Bank0 Bank3 Write suspend Write suspend Bank3 ^Bank0
supend end Write Active
start
end Write Precharge
Earliest Bank3
Precharge
Data Sheet No. E0112H10
63