IS61QDB24M18A Datasheet, PDF (15/29 Pages) Integrated Silicon Solution, Inc – 2Mx36 and 4Mx18 configuration available

IS61QDB24M18A
IS61QDB22M36A
Pin Capacitance
Parameter
Symbol
Input or output capacitance except D and Q pins
CIN ,CO
D and Q capacitance (D0–Dx, Q0-Qx)
CDQ
°
Clocks Capacitance (K, K, C, C)
CCLK
Note: these parameters are guaranteed by design and tested by a sample basis only.
Test Condition
Max Units
5
pF
6
pF
4
pF
PROGRAMMABLE IMPEDANCE OUTPUT DRIVER DC ELECTRICAL CHARACTERISTICS
(Over the Operating Temperature Range, VDD=1.8V±5%, VDDQ=1.5V/1.8V)
Parameter
Symbol
Min
Max
Units
Output Logic HIGH Voltage
VOH
VDDQ /2 -0.12
VDDQ /2 + 0.12
V
Output Logic LOW Voltage
VOL
Notes:
1.
 VDDQ 

| IOH | ^{ 2 }
 RQ 

5
2.
 VDDQ 

| IOL | ^{ 2 }
 RQ 

5
3. Parameter Tested with RQ=250Ω and VDDQ=1.5V
VDDQ /2 -0.12
VDDQ /2 + 0.12
V
Notes
1, 3
2, 3
AC Test Conditions
(Over the Operating Temperature Range, V_DD=1.8V±5%, V_DDQ=1.5V/1.8V)
Parameter
Symbol
Conditions
Output Drive Power Supply Voltage
VDDQ
1.5/1.8
Input Logic HIGH Voltage
VIH
VREF+0.5
Input Logic LOW Voltage
VIL
VREF–0.5
Input Reference Voltage
VREF
0.75/0.9
Input Rise Time
TR
2.0
Input Fall Time
TF
2.0
Output Timing Reference Level
VREF
Clock Reference Level
VREF
Output Load Conditions
Notes:
1. See AC Test Loading.
2. Parameter Tested with RQ=250Ω and VDDQ=1.5V
Units
V
V
V
V
V/ns
V/ns
V
V
Notes
1, 2
Integrated Silicon Solution, Inc.- www.issi.com
15
Rev. A
8/7/2014