Datasheet

Table 49. Single-Ended AC and DC Input levels for LDM#/LDBI#, UDM#/UDBIU#
Parameter
Symbol
Min.
Max.
Unit
Note
CTipB AC Input High Voltage
V
IH(AC)
_CTipB
V
REFDQ
+ 0.3
-
V
2
CTipB DC Input High Voltage
V
IH(DC)
_CTipB
V
REFDQ
+ 0.2
V
DDQ
V
CTipB DC Input Low Voltage
V
IL(DC)
_CTipB
V
SSQ
V
REFDQ
- 0.2
V
CTipB AC Input Low Voltage
V
IL(AC)
_CTipB
-
V
REFCA
- 0.3
V
2
CTipB Input signal Falling time
T
F_input
_CTipB
-
5
ns
CTipB Input signal Rising time
T
R_input
_CTipB
-
5
ns
Note 1. V
REFDQ
is V
DDQ
x 0.5
Note 2. See “Overshoot and Undershoot Specifications”.
TF_input_CTipB
V
IH(AC)_CTipB min
TR_input_CTipB
V
IH(DC)_CTipB min
V
IL(DC)_CTipB max
V
IL(AC)_CTipB max
V
REFDQ
V
DDQ
x 0.5
Figure 157. Input B Slew Rate Definition
Input Levels for RESET#
RESET# input condition is the same as normal operation.
Input Levels for ALERT#
TBD
AS4C256M16D4
Confidential
- 133 of 201 -
Rev.1.0 Aug.2019