IS49NLC93200,IS49NLC18160,IS49NLC36800
Notes:
1) IDD specifications are tested after the device is properly initialized. +0°C ≤ TC ≤ +95°C; +1.7V ≤ VDD ≤ +1.9V, +2.38V ≤ VEXT ≤ +2.63V, +1.4V ≤ VDDQ ≤ VDD, VREF
=
VDDQ/2.
2) tCK = tDK = MIN, tRC = MIN.
3) Definitions for IDD conditions:
a.
b. HIGH is defined as VIN ≥ VIH(AC) MIN.
c. Stable is defined as inputs remaining at a HIGH or LOW level.
LOW is defined as VIN ≤ VIL(AC) MAX.
d. Floating is defined as inputs at VREF = VDDQ/2.
e. Continuous data is defined as half the D or Q signals changing between HIGH and LOW every half clock cycle (twice per clock).
f.
g.
Continuous address is defined as half the address signals changing between HIGH and LOW every clock cycle (once per clock).
Sequential bank access is defined as the bank address incrementing by one every tRC
.
h. Cyclic bank access is defined as the bank address incrementing by one for each command access. For BL = 2 this is every clock, for BL = 4 this is every
other clock, and for BL = 8 this is every fourth clock.
4) CS# is HIGH unless a READ, WRITE, AREF, or MRS command is registered. CS# never transitions more than once per clock cycle.
5) IDD parameters are specified with ODT disabled.
6) Tests for AC timing, IDD, and electrical AC and DC characteristics may be conducted at nominal reference/supply voltage levels, but the related specifications
and device operations are tested for the full voltage range specified.
7) IDD tests may use a VIL-to-VIH swing of up to 1.5V in the test environment, but input timing is still referenced to VREF (or to the crossing point for CK/CK#).
Parameter specifications are tested for the specified AC input levels under normal use conditions. The minimum slew rate for the input signals used to test the
device is 2 V/ns in the range between VIL(AC) and VIH(AC).
2.5 Recommended AC Operating Conditions
(+0°C ≤ TC ≤ +95°C; +1.7V ≤ VDD ≤ +1.9V, unless otherwise noted.)
Parameter
Input HIGH voltage
Input LOW voltage
Symbol
VIH(AC)
VIL(AC)
Min
VREF + 0.2
-
Max
-
VREF – 0.2
Units
V
V
Notes:
1. Overshoot: VIH (AC) ≤ VDDQ + 0.7V for t ≤ tCK/2.
2. Undershoot: VIL (AC) ≥ – 0.5V for t ≤ tCK/2.
3. Control input signals may not have pulse widths less than tCKH(MIN) or operate at cycle rates less than tCK(MIN.).
2.6 Temperature and Thermal Impedance
Temperature Limits
Min
0
0
Max
+110
+100
+95
Parameter
Symbol
Units
°C
°C
Reliability junction temperature 1
Operating junction temperature 2
Operating case temperature 3
TJ
TJ
TC
0
°C
Notes:
1. Temperatures greater than 110°C may cause permanent damage to the device. This is a stress rating only and functional operation of the device at or above this
is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability of the part.
2. Junction temperature depends upon cycle time, loading, ambient temperature, and airflow.
3. MAX operating case temperature; TC is measured in the center of the package. Device functionality is not guaranteed if the device exceeds maximum TC during
operation.
Thermal Resistance
Theta-ja
(Airflow = 0m/s)
Theta-ja
(Airflow = 1m/s) (Airflow = 2m/s)
19.1 17.2
Theta-ja
Package
Substrate
4-layer
Unit
C/W
Theta-jc
2.4
144-ball FBGA
20.6
Integrated Silicon Solution, Inc. – www.issi.com –
Rev. A1, 06/03/2016
8