
IDT71V256SA
3.3V CMOS Static RAM 256K (32K x 8-Bit)
Recommended DC Operating
Conditions
Commercial and Industrial Temperature Ranges
-0.3
Symbol
V CC
GND
V IH
V IH
V IL
Parameter
Supply Voltage
Ground
Input High Voltage - Inputs
Input High Voltage - I/O
Input Low Voltage
Min.
3.0
0
2.0
2.0
(1)
Typ.
3.3
0
____
____
____
Max.
3.6
0
V CC +0.3
V CC +0.3
0.8
Unit
V
V
V
V
V
NOTE:
1. V IL (min.) = –2.0V for pulse width less than 5ns, once per cycle.
3101 tbl 06
DC Electrical Characteristics (1)
(V CC = 3.3V ± 0.3V, V LC = 0.2V, V HC = V CC - 0.2V, Commercial and Industrial Temperature
Ranges)
Symbol Parameter 71V256SA10 71V256SA12 71V256SA15 71V256SA20
Unit
I CC
I SB
I SB1
Dynamic Operating Current CS < V IL , Outputs
Open, V CC = Max., f = f MAX (2)
Standby Power Supply Current (TTL Level)
CS = V IH , V CC = Max., Outputs Open, f = f MAX (2)
Full Standby Power Supply Current (CMOS Level)
CS > V HC , V CC = Max., Outputs Open, f = 0 (2) ,
V IN < V LC or V IN > V HC
100
20
2
90
20
2
85
20
2
85
20
2
mA
mA
mA
NOTES:
1. All values are maximum guaranteed values.
2. f MAX = 1/t RC , only address inputs cycling at f MAX ; f = 0 means that no inputs are cycling.
DC Electrical Characteristics
(V CC = 3.3V± 0.3V)
IDT71V256SA
3101 tbl 07
Symbol
|I LI |
|I LO |
V OL
V OH
Parameter
Input Leakage Current
Output Leakage Current
Output Low Voltage
Output High Voltage
Test Conditions
V CC = Max., V IN = GND to V CC
V CC = Max., CS = V IH , V OUT = GND to V CC
I OL = 8mA, V CC = Min.
I OH = -4mA, V CC = Min.
Min.
___
___
___
2.4
Typ.
___
___
___
___
Max.
2
2
0.4
___
Unit
μA
μA
V
V
3101 tbl 08
3
6.42