©2012 Integrated Device Technology, Inc.
JULY 2012
DSC 2683/11
1
IDT7025S/L
HIGH-SPEED
8K x 16 DUAL-PORT
STATIC RAM
Features
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
Military: 20/25/35/55/70ns (max.)
Industrial: 55ns (max.)
Commercial: 15/17/20/25/35/55ns (max.)
Low-power operation
IDT7025S
Active: 750mW (typ.)
Standby: 5mW (typ.)
IDT7025L
Active: 750mW (typ.)
Standby: 1mW (typ.)
Separate upper-byte and lower-byte control for multiplexed
bus compatibility
IDT7025 easily expands data bus width to 32 bits or more
using the Master/Slave select when cascading more than
one device
M/S = H for BUSY output flag on Master
M/S = L for BUSY input on Slave
Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
Battery backup operation—2V data retention
TTL-compatible, single 5V (±10%) power supply
Available in 84-pin PGA, Flatpack, PLCC, and 100-pin Thin
Quad Flatpack
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Functional Block Diagram
NOTES:
1. (MASTER): BUSY is output; (SLAVE): BUSY is input.
2. BUSY outputs and INT outputs are non-tri-stated push-pull.
I/O
Control
Address
Decoder
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
I/O
Control
R/W
L
BUSY
L
A
12L
A
0L
2683 drw 01
UB
L
LB
L
CE
L
OE
L
I/O
8L
-I/O
15L
I/O
0L
-I/O
7L
CE
L
OE
L
R/W
L
SEM
L
INT
L
M/S
R/W
R
BUSY
R
UB
R
LB
R
CE
R
OE
R
I/O
8R
-I/O
15R
I/O
0R
-I/O
7R
A
12R
A
0R
R/W
R
SEM
R
INT
R
CE
R
OE
R
(2)
(1,2)
(1,2)
(2)
13
13
6.42
IDT7025S/L
High-Speed 8K x 16 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
2
2683 drw 02
14
15
16
17
18
19
20
INDEX
21
22
23
24
11109876543218483
33 34 35 36 37 38 39 40 41 42 43 44 45
V
CC
GND
I/O
8L
A
7L
13
12
25
26
27
28
29
30
31
32
46 47 48 49 50 51 52 53
72
71
70
69
68
67
66
65
64
63
62
73
74
61
60
59
58
57
56
55
54
82 81 80 79 78 77 76 75
GND
BUSY
L
GND
IDT7025J or F
J84-1
(4)
F84-2
(4)
84-Pin PLCC/Flatpack
Top View
(5)
INT
L
M/S
INT
R
I/O
9L
I/O
10L
I/O
11L
I/O
12L
I/O
13L
I/O
14L
I/O
15L
I/O
0R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
6R
I/O
7R
I/O
8R
A
6L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
BUSY
R
A
0R
A
2R
A
3R
A
4R
A
5R
A
6R
A
1R
I
/
O
7
L
I
/
O
6
L
I
/
O
5
L
I
/
O
4
L
I
/
O
3
L
I
/
O
2
L
V
C
C
R
/
W
L
S
E
M
L
C
E
L
U
B
L
L
B
L
A
1
1
L
G
N
D
I
/
O
1
L
I
/
O
0
L
A
1
0
L
A
9
L
A
8
L
O
E
L
I
/
O
9
R
I
/
O
1
0
R
I
/
O
1
1
R
I
/
O
1
2
R
I
/
O
1
3
R
I
/
O
1
4
R
G
N
D
I
/
O
1
5
R
G
N
D
A
1
1
R
A
1
0
R
A
9
R
A
8
R
A
7
R
O
E
R
R
/
W
R
C
E
R
U
B
R
L
B
R
A
1
2
R
A
1
2
L
S
E
M
R
11/06/01
Description
The IDT7025 is a high-speed 8K x 16 Dual-Port Static RAM. The
IDT7025 is designed to be used as a stand-alone 128K-bit Dual-Port RAM
or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit or more
word systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach
in 32-bit or wider memory system applications results in full-speed, error-
free operation without the need for additional discrete logic.
This device provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. An automatic power down
feature controlled by Chip Enable (CE) permits the on-chip circuitry of each
port to enter a very low standby power mode.
Fabricated using IDT’s CMOS high-performance technology, these
devices typically operate on only 750mW of power. Low-power (L)
versions offer battery backup data retention capability with typical power
consumption of 500µW from a 2V battery.
The IDT7025 is packaged in a ceramic 84-pin PGA, an 84-pin
Flatpack, PLCC, and a 100-pin TQFP. Military grade product is manu-
factured in compliance with the latest revision of MIL-PRF-38535 QML,
making it ideally suited to military temperature applications demanding the
highest level of performance and reliability.
Pin Configurations
(1,2,3)
NOTES:
1. All V
CC pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
3. J84-1 package body is approximately 1.15 in x 1.15 in x .17 in.
F84-2 package body is approximately 1.17 in x 1.17 in x .11 in.
PN100-1 package body is approximately 14mm x 14mm 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.
Index
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
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
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
IDT7025PF
PN100-1
(4)
100-Pin TQFP
Top View
(5)
N/C
N/C
N/C
N/C
I/O
10L
I/O
11L
I/O
12L
I/O
13L
GND
I/O
14L
I/O
15L
V
CC
GND
I/O
0R
I/O
1R
I/O
2R
I/O
3R
V
CC
I/O
4R
I/O
5R
I/O
6R
N/C
N/C
N/C
N/C
2683 drw 03
N/C
N/C
N/C
N/C
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
GND
M/S
BUSY
R
INT
R
A
0R
N/C
N/C
N/C
N/C
BUSY
L
A
1R
A
2R
A
3R
A
4R
I
/
O
9
L
I
/
O
8
L
I
/
O
7
L
I
/
O
6
L
I
/
O
5
L
I
/
O
4
L
I
/
O
3
L
I
/
O
2
L
G
N
D
I
/
O
1
L
I
/
O
0
L
O
E
L
V
C
C
R
/
W
L
S
E
M
L
C
E
L
U
B
L
L
B
L
A
1
1
L
A
1
0
L
A
9
L
A
8
L
A
7
L
A
6
L
I
/
O
7
R
I
/
O
8
R
I
/
O
9
R
I
/
O
1
0
R
I
/
O
1
1
R
I
/
O
1
2
R
I
/
O
1
3
R
I
/
O
1
4
R
G
N
D
I
/
O
1
5
R
O
E
R
R
/
W
R
S
E
M
R
C
E
R
U
B
R
L
B
R
G
N
D
A
1
1
R
A
1
0
R
A
9
R
A
8
R
A
7
R
A
6
R
A
5
R
A
1
2
L
A
1
2
R
.
11/06/01
6.42
IDT7025S/L
High-Speed 8K x 16 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
3
Pin Configurations
(1,2,3)
(con't.)
NOTES:
1. All V
CC pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
3. Package body is approximately 1.12 in x 1.12 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.
2683 drw 04
I/O
7L
63 61 60 58 55 54 51 48 46 45
66
67
69
72
75
76
79
81
82
83
125
7
8
11
10
12
14 17 20
23
26
28 29
32 31
33 35
38
41
43
IDT7025G
G84-3
(4)
84-Pin PGA
Top View
(5)
ABCDEFGHJKL
42
59 56 49 50 40
25
27
30
36
34
37
39
84346915131618
22 24
19 21
68
71
70
77
80
UB
R
CE
R
GND
11
10
09
08
07
06
05
04
03
02
01
64
65
62
57 53 52
47 44
73
74
78
GND
GND
R/W
R
OE
R
LB
R
GNDGND
SEM
R
UB
L
CE
L
R/W
L
OE
L
GND
SEM
L
V
CC
LB
L
INT
R
BUSY
R
BUSY
L
M/S
INT
L
A
11L
Index
I/O
5L
I/O
4L
I/O
2L
I/O
0L
I/O
10L
I/O
8L
I/O
6L
I/O
3L
I/O
1L
I/O
11L
I/O
9L
I/O
13L
I/O
12L
I/O
15L
I/O
14L
I/O
0R
A
9L
A
10L
A
8L
A
7L
A
5L
A
6L
A
4L
A
3L
A
2L
A
0L
A
1L
A
0R
A
2R
A
1R
A
5R
A
3R
A
6R
A
4R
A
9R
A
7R
A
8R
A
10R
A
11R
I/O
1R
I/O
2R
V
CC
I/O
3R
I/O
4R
I/O
5R
I/O
7R
I/O
6R
I/O
9R
I/O
8R
I/O
11R
I/O
10R
I/O
12R
I/O
13R
I/O
14R
I/O
15R
V
CC
A
12R
A
12L
11/06/01
.

7025S55PF

Mfr. #:
Manufacturer:
IDT
Description:
SRAM 8KX16 DUAL PORT SRAM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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