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IDT70P258/248L
Low Power 1.8V 8K/4K x 16 Dual-Port Static RAM
Industrial Temperature Range
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range (V DD = 1.8V ± 100mV)
Symbol
I LI
I LO
V OLL
V OHL
V OLL
V OHL
V OLR
V OHR
Parameter
Input Leakage Current
Output Leakage Current
Output Low Voltage (V DDQL = 3.0V)
Output High Voltage (V DDQL = 3.0V)
Output Low Voltage (V DDQL = 2.5V)
Output High Voltage (V DDQL = 2.5V)
Output Low Voltage
Output High Voltage
Test Conditions
V DD = 1.8V, V IN = 0V to V DD
CE = V IH , V OUT = 0V to V DD
I OLL = +2mA
I OHL = -2mA
I OLL = +2mA
I OHL = -2mA
I OLR = +0.1mA
I OHR = -0.1mA
Min.
___
___
___
2.1
___
2.0
___
V DD - 0.2V
Max.
1
1
0.4
___
0.4
___
0.2
___
Unit
μ A
μ A
V
V
V
V
V
V
5675 tbl 08
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range (V DD = 1.8V ±100mV)
70P258/248
Ind'l Only
Symbol
Parameter
Test Condition
Version
Typ. (1)
Max.
Unit
I DD
I SB1
I SB2
I SB3
I SB4
Dynamic Operating Current
(Both Ports Active)
Standby Current (Both Ports
Inactive)
Standby Current (One Port
Inactive, One Port Active)
Full Standby Current (Both
Ports Inactive - CMOS Level
Inputs)
Standby Current (One Port
Inactive, One Port Active -
CMOS Level Inputs)
CE = V IL , Outputs Open
f = f MAX (2)
CE R and CE L = V IH, SEM R = SEM L = V IH
f = f MAX (2)
CE " A " = V IL and CE " B " = V IH(3) , Active Port Outputs Open
f = f MAX(2)
Both Ports CE L and CE R > V DDQ - 0.2V,
SEM L and SEM R > V DDQ - 0.2V, V IN > V DDQ - 0.2V or V IN < 0.2V
M/ S = V DD or V SS(4) , f = 0
CE "A" < 0.2V and CE "B" > V DDQ - 0.2V (4)
V IN > V DDQ - 0.2V or V IN < 0.2V, Active Port Outputs Open
f = f MAX (2)
IND'L
IND'L
IND'L
IND'L
IND'L
L
L
L
L
L
15
2
8.5
2
8.5
25
8
14
8
14
mA
μ A
mA
μ A
mA
5675 tbl 09
NOTES:
1. V DD = 1.8V, T A = +25°C, and are not production tested. I DD DC = 15mA ( typ .)
2. At f = f MAX , address and control lines are cycling at the maximum frequency read cycle of 1/t RC , and using “AC Test Conditions”.
3. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
4. If M/ S = V SS , then f BUSYL = f BUSYR = 0 for full standby mode.
6.42
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