IS61QDB21M18A Datasheet, PDF (15/30 Pages) Integrated Silicon Solution, Inc – 512Kx36 and 1Mx18 configuration available

IS61QDB21M18A
IS61QDB251236A
Typical AC Input Characteristics
Parameter
Symbol
AC Input Logic HIGH
AC Input Logic LOW
Clock Input Logic HIGH
Clock Input Logic LOW
V_IH (AC)
V_IL (AC)
V_IH-CLK (AC)
V_IL-CLK (AC)
Min
V_REF+0.2
V_REF+0.2
Max
V_REF–0.2
V_REF–0.2
Units
V
V
V
V
Notes
1, 2, 3, 4
1, 2, 3, 4
1, 2, 3
1, 2, 3
Notes:
1. The peak-to-peak AC component superimposed on V_REF may not exceed 5% of the DC component of V_REF.
2. Performance is a function of V_IH and V_IL levels to clock inputs.
3. See the
diagram.
4. See the
diagram. The signals should swing monotonically with no steps rail-to-rail with input signals never ringing back past
V_IH (AC) and V_IL (AC) during the input setup and input hold window. V_IH (AC) and V_IL (AC) are used for timing purposes only.
AC Input Definition
K#
V_REF
K
V_RAIL
V_IH(AC)
V_REF
V_IL(AC)
V_-RAIL
Setup Time Hold Time
PBGA Thermal Characteristics
Parameter
Thermal resistance (junction to ambient at airflow = 1m/s)
Thermal resistance (junction to pins)
Thermal resistance (junction to case)
Symbol
R_θJA
R_θJB
R_θJC
13x15 BGA
19.6
4.02
4.53
15x17 BGA
18.0
3.30
4.20
Note: these parameters are guaranteed by design and tested by a sample basis only.
Units
°C/W
°C/W
°C/W
Integrated Silicon Solution, Inc.- www.issi.com
15
Rev. B
10/02/2014