k4b2g0446e Samsung Semiconductor, Inc., k4b2g0446e Datasheet - Page 45

• Manufacturer Part Number: k4b2g0446e
• Description: Ddp 2gb E-die Ddr3 Sdram
• Manufacturer: Samsung Semiconductor, Inc.

K4B2G0446E
K4B2G0846E
[ Tabel 47 ] Timing Parameters by Speed Bin (Cont.)
Command and Address Timing
DLL locking time
internal READ Command to PRECHARGE Command
delay
Delay from start of internal write transaction to internal
read command
WRITE recovery time
Mode Register Set command cycle time
Mode Register Set command update delay
CAS# to CAS# command delay
Auto precharge write recovery + precharge time
Multi-Purpose Register Recovery Time
ACTIVE to PRECHARGE command period
ACTIVE to ACTIVE command period for 1KB page size
ACTIVE to ACTIVE command period for 2KB page size
Four activate window for 1KB page size
Four activate window for 2KB page size
Command and Address setup time to CK, CK refer-
enced to V
Command and Address hold time from CK, CK refer-
enced to V
Command and Address setup time to CK, CK refer-
enced to V
Control & Address Input pulse width for each input
Calibration Timing
Power-up and RESET calibration time
Normal operation Full calibration time
Normal operation short calibration time
Reset Timing
Exit Reset from CKE HIGH to a valid command
Self Refresh Timing
Exit Self Refresh to commands not requiring a locked
DLL
Exit Self Refresh to commands requiring a locked DLL
Minimum CKE low width for Self refresh entry to exit
timing
Valid Clock Requirement after Self Refresh Entry
(SRE) or Power-Down Entry (PDE)
Valid Clock Requirement before Self Refresh Exit
(SRX) or Power-Down Exit (PDX) or Reset Exit
IH
IH
IH
(AC) / V
(AC) / V
(AC) / V
IL
IL
IL
Parameter
(AC) levels
(AC) levels
(AC) levels
Speed
tDAL(min)
tIS(base)
tIH(base)
tIS(base)
tCKESR
tCKSRE
tCKSRX
Symbol
tZQoper
tXSDLL
tMPRR
tZQinitI
AC150
tZQCS
tDLLK
tWTR
tMRD
tMOD
tFAW
tFAW
tRTP
tCCD
tRAS
tRRD
tRRD
tXPR
tIPW
tWR
tXS
tRFC + 10ns)
max(5nCK,tR
(4nCK,7.5ns)
(4nCK,7.5ns)
(12nCK,15ns
(4nCK,10ns)
(4nCK,10ns)
tCKE(min) +
max(5nCK,
FC + 10ns)
tDLLK(min)
max(5nCK,
max(5nCK,
200 + 150
10ns)
10ns)
1tCK
max
max
max
max
max
MIN
512
200
275
900
512
256
15
40
50
64
4
4
1
)
DDR3-800
See 13.3 " Speed Bins and CL, tRCD, tRP, tRC and tRAS for corresponding Bin" on page 37
MAX
Page 45 of 59
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
tRFC + 10ns)
max(5nCK,tR
(4nCK,7.5ns)
(4nCK,7.5ns)
(12nCK,15ns
(4nCK,7.5ns)
(4nCK,10ns)
tCKE(min) +
max(5nCK,
FC + 10ns)
tDLLK(min)
max(5nCK,
max(5nCK,
125 + 150
10ns)
10ns)
1tCK
max
max
max
max
max
37.5
MIN
512
125
200
780
512
256
15
50
64
4
4
1
)
DDR3-1066
WR + roundup (tRP / tCK(AVG))
MAX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
tRFC + 10ns)
max(5nCK,tR
(4nCK,7.5ns)
(4nCK,7.5ns)
(12nCK,15ns
(4nCK,7.5ns)
tCKE(min) +
(4nCK,6ns)
max(5nCK,
FC + 10ns)
tDLLK(min)
max(5nCK,
max(5nCK,
65+125
10ns)
10ns)
1tCK
MIN
max
max
max
max
max
512
140
620
512
256
15
30
45
65
64
4
4
1
)
DDP 2Gb DDR3 SDRAM
DDR3-1333
MAX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
tRFC + 10ns)
max(5nCK,tR
(4nCK,7.5ns)
(4nCK,7.5ns)
(12nCK,15ns
(4nCK,7.5ns)
tCKE(min) +
(4nCK,6ns)
max(5nCK,
FC + 10ns)
tDLLK(min)
max(5nCK,
max(5nCK,
TBD+125
10ns)
10ns)
1tCK
MIN
max
max
max
max
max
TBD
TBD
512
560
512
256
Rev. 1.0 March 2009
15
30
40
64
4
4
1
)
DDR3-1600
MAX
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
nCK
nCK
nCK
nCK
nCK
nCK
nCK
nCK
nCK
ns
ns
ns
ns
ps
ps
ps
ps
b,16,27
Note
e,18
b,16
b,16
22
28
23
e
e
e
e
e
e
e