Datasheet

Output Characteristics and Operating Conditions
Table 45: DDR3L Single-Ended Output Driver Characteristics
All voltages are referenced to V
SS
Parameter/Condition Symbol Min Max Unit Notes
Output leakage current: DQ are disabled;
0V ≤ V
OUT
≤ V
DDQ
; ODT is disabled; ODT is HIGH
I
OZ
–5 5 μA 1
Output slew rate: Single-ended; For rising and falling edges,
measure between V
OL(AC)
= V
REF
- 0.09 × V
DDQ
and V
OH(AC)
=
V
REF
+ 0.09 × V
DDQ
SRQ
se
1.75 6 V/ns 1, 2, 3, 4
Single-ended DC high-level output voltage V
OH(DC)
0.8 × V
DDQ
V 1, 2, 5
Single-ended DC mid-point level output voltage V
OM(DC)
0.5 × V
DDQ
V 1, 2, 5
Single-ended DC low-level output voltage V
OL(DC)
0.2 × V
DDQ
V 1, 2, 5
Single-ended AC high-level output voltage V
OH(AC)
V
TT
+ 0.1 × V
DDQ
V 1, 2, 3, 6
Single-ended AC low-level output voltage V
OL(AC)
V
TT
- 0.1 × V
DDQ
V 1, 2, 3, 6
Delta R
ON
between pull-up and pull-down for DQ/DQS MM
PUPD
–10 10 % 1, 7
Test load for AC timing and output slew rates Output to V
TT
(V
DDQ
/2) via 25Ω resistor 3
Notes:
1. RZQ of 240Ω ±1% with RZQ/7 enabled (default 34Ω driver) and is applicable after prop-
er ZQ calibration has been performed at a stable temperature and voltage (V
DDQ
= V
DD
;
V
SSQ
= V
SS
).
2. V
TT
= V
DDQ
/2.
3. See Figure 27 (page 65) for the test load configuration.
4. The 6 V/ns maximum is applicable for a single DQ signal when it is switching either from
HIGH to LOW or LOW to HIGH while the remaining DQ signals in the same byte lane are
either all static or all switching in the opposite direction. For all other DQ signal switch-
ing combinations, the maximum limit of 6 V/ns is reduced to 5 V/ns.
5. See Figure 24 (page 56) for IV curve linearity. Do not use AC test load.
6. See Slew Rate Definitions for Single-Ended Output Signals (page 65) for output slew
rate.
7. See Figure 24 (page 56) for additional information.
8. See Figure 25 (page 63) for an example of a single-ended output signal.
8Gb: x4, x8, x16 DDR3L SDRAM
Output Characteristics and Operating Conditions
62
Rev 2.0 June 2016
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