HIGH-SPEED
4K x 8 FourPort
TM
STATIC RAM
.eatures
High-speed access
– Commercial: 20/25/35ns (max.)
– Industrial: 25ns (max.)
– Military: 25/35ns (max.)
Low-power operation
– IDT7054S
Active: 750mW (typ.)
Standby: 7.5mW (typ.)
– IDT7054L
Active: 750mW (typ.)
Standby: 1.5mW (typ.)
True FourPort memory cells which allow simultaneous
access of the same memory locations
Fully asynchronous operation from each of the four ports:
P1, P2, P3, and P4
x
x
IDT7054S/L
x
x
TTL-compatible; single 5V (±10%) power supply
Available in 128 pin Thin Quad Flatpack and 108 pin PGA
packages
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
x
Description
The IDT7054 is a high-speed 4K x 8 FourPort™ Static RAM designed
to be used in systems where multiple access into a common RAM is
required. This FourPort Static RAM offers increased system performance
in multiprocessor systems that have a need to communicate in real time and
also offers added benefit for high-speed systems in which multiple access
is required in the same cycle.
The IDT7054 is also designed to be used in systems where on-chip
hardware port arbitration is not needed. This part lends itself to those
systems which cannot tolerate wait states or are designed to be able to
x
x
.unctional Block Diagram
R/
W
P1
CE
P1
OE
P1
R/
W
P4
CE
P4
OE
P4
I/O
0P1
-I/O
7P1
COLUMN
I/O
COLUMN
I/O
I/O
0P4
-I/O
7P4
A
0P1
- A
11P1
PORT 1
ADDRESS
DECODE
LOGIC
PORT 2
ADDRESS
DECODE
LOGIC
MEMORY
ARRAY
PORT 4
ADDRESS
DECODE
LOGIC
PORT 3
ADDRESS
DECODE
LOGIC
A
0P4
- A
11P4
A
0P2
- A
11P2
A
0P3
- A
11P3
I/O
0P2
-I/O
7P2
OE
P2
CE
P2
R/
W
P2
COLUMN
I/O
COLUMN
I/O
I/O
0P3
-I/O
7P3
OE
P3
CE
P3
R/
W
P3
3241 drw 01
NOVEMBER 2001
1
©2001 Integrated Device Technology, Inc.
DSC 3241/11
IDT7054S/L
High-Speed 4K x 8 FourPort™ Static RAM
Military, Industrial and Commercial Temperature Ranges
externally arbitrated or withstand contention when all ports simultaneously
access the same FourPort RAM location.
The IDT7054 provides four independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. It is the user’s responsibility to
ensure data integrity when simultaneously accessing the same memory
location from all ports. An automatic power down feature, controlled by
CE,
permits the on-chip circuitry of each port to enter a very low power standby
power mode.
Fabricated using IDT’s CMOS high-performance technology, this
FourPort SRAM typically operates on only 750mW of power. Low-power
(L) versions offer battery backup data retention capability, with each port
typically consuming 50µW from a 2V battery.
The IDT7054 is packaged in a ceramic 108-pin Pin Grid Array (PGA)
and a 128-pin Thin Quad Flatpack (TQFP). The military grade product
is manufactured in compliance with the latest revision of MIL-PRF-38535
QML, making it ideally suited to military temperature applications demand-
ing the highest level of performance and reliability.
Pin Configurations
(1,2,3)
11/14/01
81
80
77
74
72
69
68
65
63
60
57
54
R/
W
P2
84
A
11
P2
83
78
A
7
P2
76
A
5
P2
73
A
3
P2
70
A
0
P2
67
A
0
P3
64
A
3
P3
61
A
5
P3
59
A
7
P3
56
A
11
P3
53
R/
W
P3
NC
50
12
NC
87
86
OE
P2
82
A
8
P2
79
A
10
P2
75
A
4
P2
71
A
1
P2
66
A
1
P3
62
A
4
P3
A
6
P3
A
10
P3
58
55
A
8
P3
51
OE
P3
A
1
P4
49
47
11
A
2
P1
90
88
A
1
P1
85
CE
P2
A
0
P1
89
A
9
P2
A
6
P2
A
2
P2
A
2
P3
A
9
P3
52
CE
P3
A
0
P4
48
46
A
2
P4
A
5
P4
45
10
A
5
P1
92
91
A
3
P1
A
6
P1
94
93
A
3
P4
A
6
P4
43
42
09
A
10
P1
95
A
4
P1
V
CC
98
A
4
P4
IDT7054G
G108-1
(4)
108-Pin PGA
Top View
(5)
44
A
10
P4
A
8
P4
41
08
A
8
P1
96
97
A
7
P1
A
11
P1
100
GND
39
40
A
7
P4
A
11
P4
37
38
07
A
9
P1
99
CE
CE
P1
102
P4
35
A
9
P4
R/
W
P4
36
06
R/
W
P1
101
OE
P1
103
I/O
0
P1
106
GND
31
OE
05
P4
34
NC
104
I/O
1
P1
105
1
GND
4
8
12
17
21
25
GND
28
I/O
7
P4
32
33
NC
04
I/O
2
P1
107
2
I/O
3
P1
5
I/O
6
P1
7
V
CC
GND
10
V
CC
13
16
V
CC
GND
19
V
CC
22
24
I/O
2
P4
29
I/O
5
P4
I/O
3
P4
26
I/O
6
P4
30
03
I/O
4
P1
108
3
I/O
7
P1
6
I/O
0
P2
9
I/O
2
P2
I/O
3
P2
D
I/O
4
P2
11
I/O
6
P2
14
15
I/O
1
P3
I/O
0
P3
G
I/O
3
P3
18
I/O
5
P3
20
23
I/O
7
P3
I/O
6
P3
K
I/O
4
P4
27
02
I/O
5
P1
A
INDEX
NC
B
I/O
1
P2
C
I/O
5
P2
E
I/O
7
P2
F
I/O
2
P3
H
I/O
4
P3
J
I/O
0
P4
L
I/O
1
P4
M
01
3241 drw 02
NOTES:
1. All V
CC
pins must be connected to the power supply.
2. All GND pins must be connected to the ground supply.
3. Package body is approximately 1.21 in x 1.21 in x .16 in.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part-marking.
6.42
2
IDT7054S/L
High-Speed 4K x 8 FourPort™ Static RAM
Military, Industrial and Commercial Temperature Ranges
Pin Configurations
(1,2,3)
(con't.)
11/14/01
INDEX
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
R/W
P2
A
11P2
A
9P2
A
8P2
A
7P2
A
10P2
A
6P2
A
5P2
A
4P2
A
3P2
A
2P2
A
1P2
A
0P2
A
0P3
A
1P3
A
2P3
A
3P3
A
4P3
A
5P3
A
6P3
A
10P3
A
7P3
A
8P3
A
9P3
A
11P3
OE
P3
CE
P2
OE
P2
N/C
N/C
N/C
N/C
N/C
A
0P1
A
1P1
A
2P1
A
3P1
A
4P1
A
5P1
A
6P1
A
10P1
V
CC
A
7P1
A
8P1
A
9P1
A
11P1
CE
P1
R/W
P1
OE
P1
N/C
N/C
N/C
N/C
N/C
N/C
I/O
0P1
I/O
1P1
I/O
2P1
I/O
3P1
GND
I/O
4P1
I/O
5P1
I/O
6P1
I/O
7P1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
IDT7054PRF
PK128-1
(4)
128-Pin TQFP
Top View
(5)
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
CE
P3
R/W
P3
N/C
N/C
N/C
N/C
N/C
A
0P4
A
1P4
A
2P4
A
3P4
A
4P4
A
5P4
A
6P4
A
10P4
GND
A
7P4
A
8P4
A
9P4
A
11P4
CE
P4
R/W
P4
OE
P4
N/C
N/C
N/C
N/C
N/C
GND
N/C
I/O
7P4
I/O
6P4
I/O
5P4
GND
I/O
4P4
I/O
3P4
I/O
2P4
I/O
1P4
.
N/C
V
CC
I/O
0P2
I/O
1P2
I/O
2P2
GND
I/O
3P2
I/O
4P2
I/O
5P2
V
CC
I/O
6P2
I/O
7P2
N/C
I/0
0P3
I/O
1P3
V
CC
I/O
2P3
I/O
3P3
I/O
4P3
GND
I/O
5P3
I/O
6P3
I/O
7P3
N/C
V
CC
I/O
0P4
3241 drw 03
NOTES:
1. All V
CC
pins must be connected to the power supply.
2. All GND pins must be connected to the ground supply.
3. Package body is approximately 14mm x 20mm x 1.4mm.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part-marking.
6.42
3
IDT7054S/L
High-Speed 4K x 8 FourPort™ Static RAM
Military, Industrial and Commercial Temperature Ranges
Pin Configurations
(1,2)
Symbol
A
0
P1 - A
11
P1
A
0
P2 - A
11
P2
A
0
P3 - A
11
P3
A
0
P4 - A
11
P4
I/O
0
P1 - I/O
7
P1
I/O
0
P2 - I/O
7
P2
I/O
0
P3 - I/O
7
P3
I/O
0
P4 - I/O
7
P4
R/W P1
R/W P2
R/W P3
R/W P4
GND
CE
P1
CE
P2
CE
P3
CE
P4
OE
P1
OE
P2
OE
P3
OE
P4
V
CC
Pin Name
Address Line s - Port 1
Address Line s - Port 2
Address Line s - Port 3
Address Line s - Port 4
Data I/O - Port 1
Data I/O - Port 2
Data I/O - Port 3
Data I/O - Port 4
Read/Write - Port 1
Read/Write - Port 2
Read/Write - Port 3
Read/Write - Port 4
Ground
Chip Enab le - Port 1
Chip Enab le - Port 2
Chip Enab le - Port 3
Chip Enab le - Port 4
Output Enab le - Port 1
Output Enab le - Port 2
Output Enab le - Port 3
Output Enab le - Port 4
Power
3241 tbl 01
Capacitance
(1)
Symbol
C
IN
C
OUT
Parameter
Input Capacitance
Output
Capacitance
(T
A
= +25°C, f = 1.0MHz) TQ.P ONLY
Conditions
(2)
V
IN
= 0V
V
OUT
= 0V
Max.
9
10
Unit
pF
pF
3241 tbl 03
NOTES:
1. This parameter is determined by device characterization but is not production
tested.
2. 3dV references the interpolated capacitance when the input and the output
signals switch from 0V to 3V or from 3V to 0V.
Maximum Operating Temperature
and Supply Voltage
(1)
Grade
Military
Commercial
Industrial
Ambient
Temperature
-55°C to +125°C
0
°
C to +70
°
C
-40°C to +85°C
GND
0V
0V
0V
Vcc
5.0V
+
10%
5.0V
+
10%
5.0V
+
10%
3241 tbl 04
NOTES:
1. This is the parameter T
A
. This is the "instant on" case temperature.
Absolute Maximum Ratings
(1)
Symbol
V
TERM
(2)
Rating
Terminal Voltage
with Respect
to GND
Temperature
Under Bias
Storage
Temperature
DC Output Current
Commercial
& Industrial
-0.5 to +7.0
Military
-0.5 to +7.0
Unit
V
NOTES:
1. All V
CC
pins must be connected to the power supply.
2. All GND pins must be connected to the ground supply.
T
BIAS
T
STG
-55 to +125
-65 to +150
50
-65 to +135
-65 to +150
50
o
C
C
o
Recommended DC Operating
Conditions
Symbol
V
CC
GND
V
IH
V
IL
Parameter
Supply Voltage
Ground
Input High Voltage
Input Low Voltage
Min.
4.5
0
2.2
-0.5
(1)
Typ.
5.0
0
____
I
OUT
Unit
V
V
V
V
3241 tbl 02
mA
3241 tbl 05
Max.
5.5
0
6.0
(2)
0.8
____
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may
cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those
indicated in the operational sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect
reliability.
2. V
TERM
must not exceed Vcc + 10% for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period of V
TERM
> V
CC
+ 10%.
NOTES:
1. V
IL
>
-1.5V for pulse width less than 10ns.
2. V
TERM
must not exceed Vcc + 10%.
6.42
4
IDT7054S/L
High-Speed 4K x 8 FourPort™ Static RAM
Military, Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(1,5)
(V
CC
= 5.0V ± 10%)
7054X20
Com'l Only
Symbol
I
CC1
7054X25
Com'l, Ind
& Military
TYP.
(2)
150
150
150
150
225
195
225
195
60
50
60
50
1.5
0.3
1.5
0.3
Max.
300
250
360
300
350
305
400
340
85
70
115
85
15
1.5
30
4.5
7054X35
Com'l &
Military
TYP.
(2)
150
150
150
150
210
180
210
180
40
35
40
35
1.5
0.3
1.5
0.3
Max.
300
250
360
300
335
290
395
330
75
60
110
80
15
1.5
30
4.5
Unit
mA
mA
mA
mA
mA
mA
mA
mA
3241 tbl 06
Parameter
Operating Power
Supply Current
(All Ports Active)
Condition
CE
= V
IL
Outputs Disabled
f = 0
(3)
Version
COM'L.
MIL. &
IND.
COM'L.
MIL. &
IND.
COM'L.
MIL. &
IND.
S
L
S
L
S
L
S
L
S
L
S
L
S
L
S
L
TYP.
(2)
150
150
____
____
Max.
300
250
____
____
I
CC2
Dynamic Operating
Current
(All Ports Active)
CE
= V
IL
Outputs Disabled
f = f
MAX
(4)
240
210
____
____
370
325
____
____
I
SB
Standby Current
(All Ports - TTL Level
Inputs)
CE
= V
IH
f = f
MAX
(4)
70
60
____
____
95
80
____
____
I
SB1
Full Standby Current
(All Ports - All
CMOS Level Inputs)
All Ports
CE
> V
CC
- 0.2V
V
IN
> V
CC
- 0.2V or
V
IN
< 0.2V, f = 0
(3)
COM'L.
MIL. &
IND.
1.5
0.3
____
____
15
1.5
____
____
NOTES:
1. 'X' in part number indicates power rating (S or L).
2. V
CC
= 5V, T
A
= +25°C and are not production tested.
3. f = 0 means no address or control lines change.
4. At f = f
MAX
,
address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/t
RC
, and using “AC Test Conditions” of input
levels of GND to 3V.
5. For the case of one port, divide the appropriate current above by four.
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(V
CC
= 5.0V ± 10%)
7054S
Symbol
|I
LI
|
|I
LO
|
V
OL
V
OH
Parameter
Input Leakage Current
(1)
Output Leakage Current
Output Low Voltage
Output High Voltage
Test Conditions
V
CC
= 5.5V, V
IN
= 0V to V
CC
CE
= V
IH
, V
OUT
= 0V to V
CC
I
OL
= 4mA
I
OH
= -4mA
Min.
___
7054L
Max.
10
10
0.4
___
Min.
___
Max.
5
5
0.4
___
Unit
µA
µA
V
V
2674 tbl 07
___
___
___
___
2.4
2.4
NOTE:
1. At Vcc < 2.0V input leakages are undefined.
6.42
5
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