SM2605 - 2Mx32 ESDRAM
ABSOLUTE MAXIMUM RATINGS
Description
Symbol
Value
Power Supply Voltage
I/O Power Supply Voltage
VDD
VDDQ
-1V to +4.6V
-1V to +4.6V, where
DDQ ≤ VDD+1V
V
Voltage on any pin with respect to ground
Operating Temperature (ambient)
Storage Temperature
VIN, VOUT
TA
Tstg
-0.5V to +4.6V
0° C to + 70° C
-55° C to + 150° C
TBD
Power Dissipation
PD
DC Output Current (I/O pins)
IOUT
50 mA
Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating
only, and the functional operation of the device at these or any other conditions above those listed in the operational section of this
specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.
DC OPERATING CONDITIONS (TA = 0°C to + 70°C)
Symbol
VDD
VDDQ
VIH1
VIL1
VIH2
VIL2
Parameter
Min
Typ
Max
Units
Notes
Supply Voltage
3.0
2.3
2.0
-0.3
1.7
-0.3
3.3
-
3.3
0.0
2.5
0.0
3.6
3.6
VDD + 0.3
0.8
VDDQ + 0.3
0.7
V
V
V
V
V
V
I/O Supply Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Low Voltage
1
2, 3
2, 3
4
4
II(L)
IO(L)
Input Leakage Current
Output Leakage Current
-
-
-
-
±1
±1
µA
µA
VOH1
VOL1
VOH2
VOL2
Output High Voltage (IOUT = -4mA)
Output Low Voltage (IOUT = +4mA)
Output High Voltage (IOUT = -2mA)
Output Low Voltage (IOUT = +2mA)
2.4
-
2.0
-
-
-
-
-
-
V
V
V
V
3
3
4
4
0.4
-
0.4
1. VDDQ must be no more than 0.3V higher than VDD
.
2. Applies to all input-only pins regardless of VDDQ voltage.
3. Applies to DQ pins when VDDQ=3.3V.
4. Applies to DQ pins when VDDQ=2.5V.
DC OUTPUT LOAD CIRCUIT
For VDDQ = 3.3V
VOH (DC) =2.4V, IOH = -4mA
VOL (DC) = 0.4V, IOL = 4mA
VT = 1.4V, RL = 250Ω
RL
Output
VT
For VDDQ = 2.5V
VOH (DC) =2.0V, IOH = -2mA
VOL (DC) = 0.4V, IOL = 2mA
VT = 1.2V, RL = 400Ω
CAPACITANCE (TA = 25°C, f=1MHz, VDD = 3.3V ±0.3V)
Symbol
CI1
CI2
CO
Parameter
Min
Typ
Max
Units
Notes
Input Capacitance (BA1, BA0, A10-A0)
Input Capacitance (All control inputs)
Output Capacitance (DQ31-DQ0)
2.0
2.0
2.0
2.7
2.7
3.8
4.0
4.0
4.5
pF
pF
pF
Rev. 1.6
6
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
