ESMT
AC Operation Conditions & Timing Specifications
AC Operation Conditions
Parameter
Input High (Logic 1) Voltage, DQ, DQS and DM signals
Input Low (Logic 0) Voltage, DQ, DQS and DM signals
Input Differential Voltage, CLK and CLK inputs
Input Crossing Point Voltage, CLK and CLK inputs
Notes:
Symbol
V
IH
(AC)
V
IL
(AC)
V
ID
(AC)
V
IX
(AC)
M13S5121632A (2R)
Min
V
REF
+ 0.31
-
0.7
0.5*V
DDQ
-0.2
Max
-
V
REF
- 0.31
V
DDQ
+0.6
0.5*V
DDQ
+0.2
Unit
V
V
V
V
Note
3,4
3,4
1,3,4
2,3,4
1. V
ID
is the magnitude of the difference between the input level on CLK and the input on CLK .
2. The value of V
IX
is expected to equal 0.5*V
DDQ
of the transmitting device and must track variations in the DC level of
the same.
3. Input slew rate = 1V/ns.
4. Inputs are not recognized as valid until V
REF
stabilizes.
AC Overshoot / Undershoot Specification
Parameter
Pin
Address, Control
Data, Strobe, Mask
Address, Control
Data, Strobe, Mask
Address, Control
Data, Strobe, Mask
Address, Control
Data, Strobe, Mask
Value
-4 / -5 / -6
Maximum peak amplitude allowed for overshoot
1.5
1.2
1.5
1.2
4.5
2.4
4.5
2.4
V
V
V
V
V-ns
V-ns
V-ns
V-ns
Unit
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above V
DD
Maximum undershoot area below V
SS
Elite Semiconductor Memory Technology Inc.
Publication Date : Feb. 2013
Revision : 1.3
8/48
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
