K4T51043Q Samsung, K4T51043Q Datasheet - Page 13
K4T51043Q
Manufacturer Part Number
K4T51043Q
Description
512Mb B-die DDR2 SDRAM
Manufacturer
Samsung
Datasheet
1.K4T51043Q.pdf
(29 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
K4T51043QC-ZCCC
Manufacturer:
SAMSUNG
Quantity:
761
Company:
Part Number:
K4T51043QC-ZCD5
Manufacturer:
STMICRO
Quantity:
50 000
Company:
Part Number:
K4T51043QE-ZCCC
Manufacturer:
SAMSUNG
Quantity:
32
Company:
Part Number:
K4T51043QE-ZCD5
Manufacturer:
SAMSUNG
Quantity:
90
Company:
Part Number:
K4T51043QE-ZCE6
Manufacturer:
SAMSUNG
Quantity:
627
Part Number:
K4T51043QG
Manufacturer:
SPANSION
Quantity:
20 000
512Mb B-die DDR2 SDRAM
Differential input AC logic Level
Notes:
1. V
LDQS or UDQS) and V
(AC) - V
2. The typical value of V
in VDDQ . V
Differential AC output parameters
Note :
1. The typical value of V
in VDDQ . V
V
Symbol
Symbol
V
V
ID
OX
ID(AC)
IX(AC)
(AC) specifies the input differential voltage |V
(AC)
IL
(AC).
IX
OX
(AC) indicates the voltage at which differential input signals must cross.
AC differential cross point voltage
(AC) indicates the voltage at which differential output signals must cross.
AC differential cross point voltage
AC differential input voltage
CP
OX
IX
V
(AC) is expected to be about 0.5 * VDDQ of the transmitting device and V
V
is the complementary input signal (such as CK, DQS, LDQS or UDQS). The minimum value is equal to V
(AC) is expected to be about 0.5 * VDDQ of the transmitting device and V
CP
TR
Parameter
Parameter
< Differential signal levels >
TR
-V
CP
0.5 * VDDQ - 0.175
0.5 * VDDQ - 0.125
| required for switching, where V
Page 13 of 29
V
V
DDQ
SSQ
V
Min.
Min.
ID
0.5
0.5 * VDDQ + 0.175
0.5 * VDDQ + 0.125
V
DDQ
V
Max.
Max.
IX or
+ 0.6
TR
Crossing point
is the true input signal (such as CK, DQS,
V
OX
OX
IX
(AC) is expected to track variations
(AC) is expected to track variations
Units
Units
V
V
V
Rev. 1.4 Feb. 2005
DDR2 SDRAM
Notes
Note
1
2
1
IH