m471b5273bh1 Samsung Semiconductor, Inc., m471b5273bh1 Datasheet - Page 10

• Manufacturer Part Number: m471b5273bh1
• Description: Ddr3 Sdram
• Manufacturer: Samsung Semiconductor, Inc.

10.0 AC & DC Input Measurement Levels
10.1 AC and DC Logic Input Levels for Single-ended Signals
Single Ended AC and DC input levels for Command and Address
Note :
1. For input only pins except RESET, V
2. See "Overshoot and Undershoot specifications" section.
3. The AC peak noise on V
4. For reference : approx. V
Single Ended AC and DC input levels for DQ and DM
Note :
1. For input only pins except RESET, V
2. See 9.6 "Overshoot and Undershoot specifications" section.
3. The AC peak noise on V
4. For reference : approx. V
5. Single ended swing requirement for DQS - DQS is 350mV (peak to peak). Differential swing for DQS - DQS is 700mV (peak to peak).
Unbuffered SoDIMM
V
V
V
V
V
V
V
V
V
IH.DQ
IH.DQ
IH.DQ
V
IL.DQ
IL.DQ
IL.DQ
IH.CA
IL.CA
V
V
V
V
REFCA
REF
Symbol
Symbol
IH.CA
IH.CA
IL.CA
IL.CA
DQ
(AC150) AC input logic lowM
(DC100) DC input logic low
(AC175) AC input logic low
(AC150) AC input logic low
(AC150) AC input logic high
(DC100) DC input logic high
(AC175) AC input logic high
(AC150) AC input logic high
(DC)
(AC)
(DC)
(AC)
(DC)
(DC)
I/O Reference Voltage(DQ)
DC input logic high
DC input logic low
AC input logic high
AC input logic low
Reference Voltage for ADD,
CMD inuts
Parameter
Parameter
REF
REF
DD
DD
/2 ± 15mV
/2 ± 15mV
may not allow V
may not allow V
REF
REF
= V
= V
REFCA
REFDQ
REF
REF
to deviate from V
to deviate from V
V
V
V
V
V
(DC)
0.49*V
(DC)
0.49*V
REF
REF
REF
REF
REF
Note 2
Min.
Min.
V
V
SS
-
SS
-
-
-
+ 100
+ 175
+ 150
+ 100
+ 175
DD
DD
DDR3-1066
DDR3-1066
10 of 28
REF
REF
(DC) by more than ± 1% V
(DC) by more than ± 1% V
V
V
V
V
V
0.51*V
0.51*V
REF
REF
REF
REF
REF
Max.
Max.
Note
V
V
DD
-
DD
-
-
-
- 100
- 175
- 150
- 100
- 175
DD
DD
V
V
V
V
V
0.49*V
0.49*V
REF
REF
REF
REF
DD
DD
REF
Min.
Min.
V
V
(for reference : approx. ± 15mV)
(for reference : approx. ± 15mV)
SS
SS
-
-
-
-
-
+ 100
+ 150
+ 100
+ 175
+150
DD
DD
DDR3-1333
DDR3-1333
Rev. 1.0 December 2008
V
V
V
V
V
0.51*V
0.51*V
REF
REF
REF
REF
DDR3 SDRAM
REF
Max.
Max.
V
V
DD
DD
-
-
-
-
-
- 100
- 175
-150
- 100
- 150
DD
DD
Unit
Unit
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
V
Notes
Notes
1,2,5
1,2,5
1,2,5
1,2,5
1,2
1,2
1,2
1,2
3,4
3,4
1
1
1
1