W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 101 -
10.6 DC and AC Input Measurement Levels
10.6.1 DC and AC Input Levels for Single-Ended Command and Address Signals
Table 17
– Single-Ended DC and AC Input Levels for Command and Address
PARAMETER
SYMBOL
DDR3L-1333/1600
DDR3L-1866/2133
UNIT NOTES
MIN.
MAX.
MIN.
MAX.
DC input logic high
V
IH.CA(DC90)
V
REF
+ 0.09
V
DD
V
REF
+ 0.09
V
DD
V
1, 5
DC input logic low
V
IL.CA(DC90)
V
SS
V
REF
- 0.09
V
SS
V
REF
- 0.09
V
1, 6
AC input logic high
V
IH.CA(AC160)
V
REF
+ 0.160
Note 2
-
-
V
1, 2, 7
AC input logic low
V
IL.CA(AC160)
Note 2
V
REF
- 0.160
-
-
V
1, 2, 8
AC input logic high
V
IH.CA(AC135)
V
REF
+ 0.135
Note 2
V
REF
+ 0.135
Note 2
V
1, 2, 7
AC input logic low
V
IL.CA(AC135)
Note 2
V
REF
- 0.135
Note 2
V
REF
- 0.135
V
1, 2, 8
AC input logic high
V
IH.CA(AC125)
-
-
V
REF
+ 0.125
Note 2
V
1, 2, 7
AC input logic low
V
IL.CA(AC125)
-
-
Note 2
V
REF
- 0.125
V
1, 2, 8
Reference Voltage for
ADD, CMD inputs
V
REFCA(DC)
0.49 x V
DD
0.51 x V
DD
0.49 x V
DD
0.51 x V
DD
V
3, 4, 9
Notes:
1. For input only pins except RESET#. V
REF
= V
REFCA(DC)
.
2. See section 10.12
“Overshoot and Undershoot Specifications”
on page 121.
3. The AC peak noise on V
REF
may not allow V
REF
to deviate from V
REFCA(DC)
by more than ±
1% V
DD
(for reference:
approx.
±
13.5 mV).
4. For reference: approx. V
DD
/2 ±
13.5 mV.
5. V
IH(DC)
is used as a simplified symbol for V
IH.CA(DC90)
.
6. V
IL(DC)
is used as a simplified symbol for V
IL.CA(DC90)
.
7. VIH
(AC)
is used as a simplified symbol for V
IH.CA(AC160),
V
IH.CA(AC135)
and V
IH.CA(AC125)
; V
IH.CA(AC160)
value is used
when V
REF
+ 0.16V is referenced, V
IH.CA(AC135)
value is used when V
REF
+ 0.135V is referenced and V
IH.CA(AC125)
value
is used when V
REF
+ 0.125V is referenced.
8. V
IL(AC)
is used as a simplified symbol for V
IL.CA(AC160),
V
IL.CA(AC135)
and V
IL.CA(AC125)
; V
IL.CA(AC160)
value is used when
V
REF
- 0.16V is referenced, V
IL.CA(AC135)
value is used when V
REF
- 0.135V is referenced and V
IL.CA(AC125)
value is used
when V
REF
- 0.125V is referenced.
9. V
REFCA(DC)
is measured relative to VDD at the same point in time on the same device.
10.6.2 DC and AC Input Levels for Single-Ended Data Signals
Table 18
– Single-Ended DC and AC Input Levels for DQ and DM
PARAMETER
SYMBOL
DDR3L-1333/1600
DDR3L-1866/2133
UNIT
NOTES
MIN.
MAX.
MIN.
MAX.
DC input logic high
V
IH.DQ(DC90)
V
REF
+ 0.09
V
DD
V
REF
+ 0.09
V
DD
V
1, 5
DC input logic low
V
IL.DQ(DC90)
V
SS
V
REF
- 0.09
V
SS
V
REF
- 0.09
V
1, 6
AC input logic high V
IH.DQ(AC135)
V
REF
+ 0.135
Note 2
-
-
V
1, 2, 7
AC input logic low
V
IL.DQ(AC135)
Note 2
V
REF
- 0.135
-
-
V
1, 2, 8
AC input logic high V
IH.DQ(AC130)
-
-
V
REF
+ 0.130
Note 2
V
1, 2, 7
AC input logic low
V
IL.DQ(AC130)
-
-
Note 2
V
REF
- 0.130
V
1, 2, 8
Reference Voltage
for DQ, DM inputs
V
REFDQ(DC)
0.49 x V
DD
0.51 x V
DD
0.49 x V
DD
0.51 x V
DD
V
3, 4, 9
Notes:
1. V
REF
= V
REFDQ(DC)
.
2. See section 10.12
“Overshoot and Undershoot Specifications”
on page 121.
3. The AC peak noise on V
REF
may not allow V
REF
to deviate from V
REFDQ(DC)
by more than ± 1% V
DD
(for reference:
approx.
±
13.5 mV).
4. For reference: approx. V
DD
/2 ±
13.5
mV.
5. V
IH(DC)
is used as a simplified symbol for V
IH.DQ(DC90)
.
6. V
IL(DC)
is used as a simplified symbol for V
IL.DQ(DC90)
.
7. VIH
(AC)
is used as a simplified symbol for V
IH.DQ(AC135) and
V
IH.DQ(AC130)
; V
IH.DQ(AC135)
value is used when V
REF
+ 0.135V
is referenced and V
IH.DQ(AC130)
value is used when V
REF
+ 0.13V is referenced.
8. V
IL(AC)
is used as a simplified symbol for V
IL.DQ(AC135) and
V
IL.DQ(AC130)
; V
IL.DQ(AC135)
value is used when V
REF
- 0.135V
is referenced and V
IL.DQ(AC130)
value is used when V
REF
- 0.13V is referenced.
9. V
REFDQ(DC)
is measured relative to VDD at the same point in time on the same device.
