
IDT71342SA/LA
High-Speed 4K x 8 Dual-Port Static RAM with Semaphore
Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range (1) (V CC = 5.0V ± 10%)
71342X20
Com'l Only
71342X25
Com'l & Ind
71342X35
Com'l Only
Symbol
Parameter
Test Condition
Version
Typ. (2)
Max.
Typ. (2)
Max.
Typ. (2)
Max.
Unit
I CC
I SB1
I SB2
I SB3
I SB4
Dynamic Operating Current
(Both Ports Active)
Standby Current
(Both Ports - TTL
Level Inputs)
Standby Current
(One Port - TTL
Level Inputs)
Full Standby Current (Both
Ports -
CMOS Level Inputs)
Full Standby Current
(One Port -
CMOS Level Inputs)
CE = V IL ,
Outputs Disabled
SEM = Don't Care
f = f MAX (3)
CE L and CE R = V IH
SEM L = SEM R > V IH
f = f MAX (3)
CE "A" = V IL and CE "B" = V IH
Active Port Outputs Disabled,
f=f MAX (3)
Both Ports CE L and
CE R > V CC - 0.2V,
V IN > V CC - 0.2V or V IN < 0.2V
SEM L = SEM R > V CC - 0.2V
f = 0 (3)
One Port CE "A" or
CE "B" > V CC - 0.2V
V IN > V CC - 0.2V or V IN < 0.2V
SEM L = SEM R > V CC - 0.2V
Active Port Outputs Disabled,
f = f MAX (3)
COM'L
IND
COM'L
IND
COM'L
IND
COM'L
IND
COM'L
IND
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
170
170
____
____
25
25
____
____
105
105
____
____
1.0
0.2
____
____
105
105
____
____
280
240
____
____
80
80
____
____
180
150
____
____
15
4.5
____
____
170
130
____
____
160
160
160
160
25
25
25
25
95
95
95
95
1.0
0.2
1.0
0.2
95
95
95
95
280
240
310
260
80
50
100
80
180
150
210
170
15
4.0
30
10
170
120
210
190
150
150
150
150
25
25
25
25
85
85
85
85
1.0
0.2
1.0
0.2
85
85
85
85
260
200
300
250
75
45
75
55
170
140
200
160
15
4.0
30
10
150
110
190
130
mA
mA
mA
mA
mA
2721 tbl 06a
71342X45
Com'l Only
71342X55
Com'l Only
71342X70
Com'l Only
Symbol
Parameter
Test Condition
Version
Typ. (2)
Max.
Typ. (2)
Max.
Typ. (2)
Max.
Unit
I CC
I SB1
I SB2
I SB3
I SB4
Dynamic Operating Current
(Both Ports Active)
Standby Current
(Both Ports - TTL
Level Inputs)
Standby Current
(One Port - TTL
Level Inputs)
Full Standby Current (Both
Ports -
CMOS Level Inputs)
Full Standby Current
(One Port -
CMOS Level Inputs)
CE = V IL ,
Outputs Disabled
SEM = Don't Care
f = f MAX (3)
CE L and CE R = V IH
SEM L = SEM R > V IH
f = f MAX (3)
CE "A" = V IL and CE "B" = V IH
Active Port Outputs Disabled,
f=f MAX (3)
Both Ports CE L and
CE R > V CC - 0.2V,
V IN > V CC - 0.2V or V IN < 0.2V
SEM L = SEM R > V CC - 0.2 V
f = 0 (3)
One Port CE "A" or
CE "B" > V CC - 0.2V
V IN > V CC - 0.2V or V IN < 0.2V
SEM L = SEM R > V CC - 0.2V
Active Port Outputs Disabled,
f = f MAX (3)
COM'L
IND
COM'L
IND
COM'L
IND
COM'L
IND
COM'L
IND
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
SA
LA
140
140
____
____
25
25
____
____
75
75
____
____
1.0
0.2
____
____
75
75
____
____
240
200
____
____
70
40
____
____
160
130
____
____
15
4.0
____
____
150
100
____
____
140
140
140
140
25
25
25
25
75
75
75
75
1.0
0.2
1.0
2.0
75
75
75
75
240
200
270
220
70
40
70
50
160
130
180
150
15
4.0
30
10
150
100
170
120
140
140
____
____
25
25
____
____
75
75
____
____
1.0
0.2
____
____
75
75
____
____
240
200
____
____
70
40
____
____
160
130
____
____
15
4.0
____
____
150
100
____
____
mA
mA
mA
mA
mA
NOTES:
2721 tbl 06b
1. 'X' in part number indicates power rating (SA or LA).
2. V CC = 5V, T A = +25°C for typical, and parameters are not production tested.
3. f MAX = 1/t RC = All inputs cycling at f = 1/t RC (except Output Enable). f = 0 means no address or control lines change. Applies only to inputs at CMOS level standby I SB3.
6.42