Samsung M391B5773DH0 - Manual (Page 12)

- 12 -
datasheet
DDR3L SDRAM
Rev. 1.0
Unbuffered DIMM
11. AC & DC Input Measurement Levels
11.1 AC & DC Logic Input Levels for Single-ended Signals
[ Table 2 ] Single Ended AC and DC input levels for Command and Address
NOTE :
1. For input only pins except RESET, V
REF
= V
REFCA
(DC)
2. See "Overshoot and Undershoot specifications" section.
3. The AC peak noise on V
REF
may not allow V
REF
to deviate from V
REF
(DC) by more than ± 1% V
DD
(for reference : approx. ± 15mV)
4. For reference : approx. V
DD
/2 ± 15mV
5. V
IH
(dc) is used as a simplified symbol for V
IH.CA
( a) 1.35V : DC90, b) 1.5V : DC100)
6. V
IL
(dc) is used as a simplified symbol for V
IL.CA
( a) 1.35V : DC90, b) 1.5V : DC100)
7. V
IH
(ac) is used as a simplified symbol for V
IH.CA
(AC175) and V
IH.CA
(AC150); V
IH.CA
(AC175) value is used when V
REF
+ 175mV is referenced and V
IH.CA
(AC150) value is
used when VREF + 150mV is referenced.
8. V
IL
(ac) is used as a simplified symbol for V
IL.CA
(AC175) and V
IL.CA
(AC150); V
IL.CA
(AC175) value is used when V
REF
- 175mV is referenced and V
IL.CA
(AC150) value is used
when V
REF
- 150mV is referenced.
Symbol Parameter
DDR3-800/1066/1333/1600
Unit NOTE
Min. Max.
1.35V
V
IH.CA
(DC90) DC input logic high V
REF
+ 90 V
DD
mV 1,5 a)
V
IL.CA
(DC90) DC input logic low V
SS
V
REF
- 90 mV 1,6 a)
V
IH.CA
(AC160) AC input logic high V
REF
+ 160 Note 2 mV 1,2
V
IL.CA
(AC160) AC input logic low Note 2 V
REF
- 160 mV 1,2
V
IH.CA
(AC135) AC input logic high V
REF
+135 Note 2 mV 1,2
V
IL.CA
(AC135) AC input logic lowM Note 2 V
REF
-135 mV 1,2
V
REFCA
(DC)
Reference Voltage for ADD,
CMD inputs
0.49*V
DD
0.51*V
DD
V 3,4
1.5V
V
IH.CA
(DC100) DC input logic high V
REF
+ 100 V
DD
mV 1,5 b)
V
IL.CA
(DC100) DC input logic low V
SS
V
REF
- 100 mV 1,6 b)
V
IH.CA
(AC175) AC input logic high V
REF
+ 175 Note 2 mV 1,2,7
V
IL.CA
(AC175) AC input logic low Note 2 V
REF
- 175 mV 1,2,8
V
IH.CA
(AC150) AC input logic high V
REF
+150 Note 2 mV 1,2,7
V
IL.CA
(AC150) AC input logic low Note 2 V
REF
-150 mV 1,2,8
V
REFCA
(DC)
Reference Voltage for ADD,
CMD inputs
0.49*V
DD
0.51*V
DD
V 3,4