GS4576C09/18/36L
Recommended DC Operating Conditions and Electrical Characteristics
Description
Supply Voltage
Conditions
Symbol
Min.
2.38
Max.
2.63
1.9
Unit
V
Notes
V
—
—
EXT
V
Supply Voltage
—
1.7
V
2
2, 3
4, 5, 6
7, 8
2
DD
V
V
Isolated Output Buffer Supply
Reference Voltage
—
1.4
V
DDQ
DD
V
0.49 * V
0.51 * V
DDQ
—
V
REF
DDQ
V
0.95 * V
1.05 * V
REF
Termination Voltage
—
V
TT
REF
V
V
+ 0.1
V
DDQ
+ 0.3
– 0.1
Input High (logic 1) voltage
Input Low (logic 0) voltage
Ouput High Current
—
V
IH(DC)
REF
V
V
– 0.3
V
REF
—
V
2
IL(DC)
SS
V
V
= V /2
I
(V /2)/(1.15 * RQ/5)
(V /2)/(0.85 * RQ/5)
A
9, 10, 11
9, 10, 11
—
OUT
OUT
DDQ
OH
DDQ
DDQ
= V /2
I
(V /2)/(1.15 * RQ/5)
(V /2)/(0.85 * RQ/5)
Ouput Low Current
A
DDQ
OL
DDQ
DDQ
0 V V V
I
Clock Input Leakage Current
Input Leakage Current
Output Leakage Current
Reference Voltage Current
–5
–5
–5
–5
5
5
5
5
A
A
A
A
IN
DD
DD
LC
0 V V V
I
—
IN
LI
0 V V V
I
—
IN
DDQ
LO
I
—
—
REF
Notes:
1. All voltages referenced to V (GND). This note applies to the entire table.
SS
2. Overshoot V
V + 0.7 V for t tCK/2. Undershoot: V
–0.5 V for t tCK/2. During normal operation V
must not exceed
DDQ
IH(AC)
DD
IL(AC)
V
V
. Control input signals may not have pulse widthts less than tCK/2 or operate at frequencies exceeding tCK (MAX).
DD
3.
can be set to a nominal 1.5 V ± 0.1 V or 1.8 V ± 0.1 V supply.
DDQ
4. Typically the value of V
is expected to be 0.5 * V
of the transmitting device. V
is expected to track variations in V
.
DDQ
REF
DDQ
REF
5. Peak-to-Peak AC noise on V
must not exceed ±2% of V
.
REF
REF(DC)
6.
V
is expected to equal V /2 of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise
REF DDQ
(non-common mode) on V
may not exceed ±2% of the DC value. Thus, from V /2, V
is allowed ±2% V /2 for DC error and an
REF DDQ
REF
DDQ
addtional ±2% V /2 for AC noise. This measurement is to be taken at the nearest V
bypass capacitor.
REF
DDQ
7.
V
is expected to be set equal to V
and must track variations in the DC level of V
.
REF
TT
REF
8. On-die termination may be selected using Mode Register Bit 9 (M9). A resistance R from each data input signal to the nearest V can be
TT
TT
enabled. R = 125–185at 95° C T .
TT
C
9.
I
and I are defined as absolute values and are measured at V /2. I flows from the device, I flows into the device.
OH OL DDQ OH OL
10. If Mode Register Bit 8 (M8) is 0, use RQ = 250in the equation in lieu of presence of an external impedance matched resistor.
11. For V and V , refer to the LLDRAM II IBIS models.
OL
OH
Rev: 1.04 11/2013
39/62
© 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
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