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Электронный компонент: 70T35

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2002 Integrated Device Technology, Inc.
DECEMBER 2002
DSC-5639/2
1
PRELIMINARY
IDT70T35/34L
HIGH-SPEED 2.5V
8/4K x 18 DUAL-PORT
8/4K x 16 DUAL-PORT
STATIC RAM
width to 36 bits (32 bits) or more using the Master/Slave
select when cascading more than one device
M/
S = V
IH
for
BUSY output flag on Master
M/
S = V
IL
for
BUSY input on Slave
BUSY and Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
LVTTL-compatible, single 2.5V (100mV) power supply
Available in a 100-pin Thin Quad Flatpack (TQFP) package
and 100-pin fine pitch Ball Grid Array (fpBGA)
Industrial temperature range (-40C to +85C) is available
for selected speeds
Functional Block Diagram
NOTES:
1. A
12
is a NC for IDT70T34 and IDT70T24.
2. (MASTER):
BUSY is output; (SLAVE): BUSY is input.
3.
BUSY outputs and INT outputs are non-tri-stated push-pull.
4. I/O
0
x - I/O
7
x for IDT70T25/24.
5. I/O
8
x - I/O
15
x for IDT70T25/24.
Features
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
IDT70T35/34L (IDT70T25/24L)
Commercial: 20/25ns (max.)
Industrial: 25ns (max.)
Low-power operation
IDT70T35/34L (IDT70T25/24L)
Active: 200mW (typ.)
Standby: 600
W (typ.)
Separate upper-byte and lower-byte control for multiplexed
bus compatibility
IDT70T35/34L (IDT70T25/24L) easily expands data bus
I/O
Control
Address
Decoder
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
I/O
Control
R/
W
L
BUSY
L
A
12L
(1)
A
0L
5639 drw 01
UB
L
LB
L
CE
L
OE
L
I/O
9L
-I/O
17L
(5)
I/O
0L
-I/O
8L
(4)
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
9R
-I/O
17R
(5)
I/O
0R
-I/O
8R
(4)
A
12R
(1)
A
0R
R/
W
R
SEM
R
INT
R
CE
R
OE
R
(3)
(2,3)
(2,3)
(3)
13
13
,
IDT70T25/24L
6.42
IDT70T35/34L(IDT70T25/24L)
PRELIMINARY
High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM Industrial and Commercial Temperature Ranges
2
Description
The IDT70T35/34L (IDT70T25/24L) is a high-speed 8/4K x 18
(8/4K x 16) Dual-Port Static RAM. The IDT70T35/34L (IDT70T25/24L)
is designed to be used as a stand-alone Dual-Port RAM or as a
combination MASTER/SLAVE Dual-Port RAM for 36-bit (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
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 200mW of power.
The IDT70T35/34L (IDT70T25/24L) is packaged in a plastic 100-pin
Thin Quad Flatpack and a 100-pin fine pitch Ball Grid Array.
IDT70T35/34 Pin Configurations
(1,2,3,4)
NOTES:
1. A
12
is a NC for IDT70T34.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground.
4. PN100-1 package body is approximately 14mm x 14mm x 1.4mm.
5. This package code is used to reference the package diagram.
6. 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
IDT70T35/34PF
PN100-1
(5)
100-Pin TQFP
Top View
(6)
N/C
N/C
I/O
8L
I/O
17L
I/O
11L
I/O
12L
I/O
13L
I/O
14L
Vss
I/O
15L
I/O
16L
V
DD
Vss
I/O
0R
I/O
1R
I/O
2R
I/O
3R
V
DD
I/O
4R
I/O
5R
I/O
6R
I/O
8R
I/O
17R
N/C
N/C
5639 drw 02
N/C
N/C
N/C
N/C
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
Vss
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
1
0
L
I
/
O
9
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
V
s
s
I
/
O
1
L
I
/
O
0
L
O
E
L
V
D
D
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
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
I
/
O
1
5
R
V
s
s
I
/
O
1
6
R
O
E
R
R
/
W
R
S
E
M
R
C
E
R
U
B
R
L
B
R
V
s
s
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
(
1
)
A
1
2
R
(
1
)
,
12/06/02
6.42
IDT70T35/34L (IDT70T/25/24L)
PRELIMINARY
High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM Industrial and Commercial Temperature Ranges
3
IDT70T35/34BF
BF100
(5)
100-Pin fpBGA
Top View
(6)
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground.
4. BF-100 package body is approximately 10mm x 10mm x 1.4mm with 0.8mm ball pitch.
NOTES:
1. A
12
is a NC for IDT70T34.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part marking.
IDT70T35/34 Pin Configurations(cont'd)
(1,2,3,4)
C10
I/O
3R
D8
I/O
17R
C8
I/O
11R
A9
I/O
10R
D9
I/O
5R
C9
I/O
8R
B9
I/O
9R
D10
I/O
1R
C7
I/O
15R
B8
I/O
12R
A8
I/O
13R
A10
I/O
7R
D7
I/O
14R
B7
OE
R
A7
V
SS
B6
R/
W
R
C6
I/O
16R
D6
LB
R
A5
V
SS
B5
SEM
R
C5
UB
R
D5
A
11R
A4
CE
R
B4
A
10R
C4
A
7R
D4
NC
A3
A
12R(1)
B3
A
8R
C3
A
5R
D3
A
2R
D2
INT
R
C2
A
4R
B2
NC
A2
A
9R
A1
A
6R
B1
NC
C1
A
3R
D1
A
1R
E1
M/
S
E2
BUSY
R
E3
A
0R
E4
A
1L
F1
V
SS
F2
BUSY
L
F3
A
0L
F4
NC
G1
INT
L
G2
A
3L
G3
A
6L
G4
NC
H1
A
2L
H2
A
5L
H3
A
10L
H4
LB
L
J1
A
4L
J2
A
8L
J3
A
11L
J4
SEM
L
K1
A
7L
K2
A
9L
K3
A
12L(1)
K4
UB
L
A6
V
SS
B10
I/O
6R
E5
V
SS
E6
V
SS
E7
I/O
4R
E8
I/O
2R
E9
I/O
0R
E10
V
DD
F5
V
DD
F6
V
SS
F8
I/O
14L
F9
I/O
15L
F10
I/O
16L
G5
V
SS
G6
I/O
3L
G7
NC
G8
I/O
12L
G9
V
SS
G10
I/O
13L
H5
CE
L
H6
I/O
1L
H7
I/O
7L
H8
I/O
8L
H9
I/O
17L
H10
I/O
11L
J5
R/
W
L
J6
OE
L
J7
I/O
4L
J8
I/O
6L
J9
V
SS
J10
I/O
10L
K5
V
DD
K6
V
DD
K7
I/O
0L
K8
I/O
2L
K9
I/O
5L
K10
I/O
9L
F7
V
DD
5639 drw 03
,
12/06/02
6.42
IDT70T35/34L(IDT70T25/24L)
PRELIMINARY
High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM Industrial and Commercial Temperature Ranges
4
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
IDT70T25/24PF
PN100-1
(5)
100-Pin TQFP
Top View
(6)
N/C
N/C
N/C
N/C
I/O
10L
I/O
11L
I/O
12L
I/O
13L
V
SS
I/O
14L
I/O
15L
V
DD
V
SS
I/O
0R
I/O
1R
I/O
2R
I/O
3R
V
DD
I/O
4R
I/O
5R
I/O
6R
N/C
N/C
N/C
N/C
5639 drw 04
N/C
N/C
N/C
N/C
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
V
SS
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
V
S
S
I
/
O
1
L
I
/
O
0
L
O
E
L
V
D
D
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
V
S
S
I
/
O
1
5
R
O
E
R
R
/
W
R
S
E
M
R
C
E
R
U
B
R
L
B
R
V
S
S
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
(
1
)
A
1
2
R
(
1
)
.
12/06/02
IDT70T25/24 Pin Configurations
(1,2,3,4)
NOTES:
1. A
12
is a NC for IDT70T24.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground.
4. PN100-1 package body is approximately 14mm x 14mm x 1.4mm.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part marking.
6.42
IDT70T35/34L (IDT70T/25/24L)
PRELIMINARY
High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM Industrial and Commercial Temperature Ranges
5
C10
I/O
3R
D8
NC
C8
I/O
10R
A9
I/O
9R
D9
I/O
5R
C9
NC
B9
I/O
8R
D10
I/O
1R
C7
I/O
14R
B8
I/O
11R
A8
I/O
12R
A10
I/O
7R
D7
I/O
13R
B7
OE
R
A7
V
SS
B6
R/
W
R
C6
I/O
15R
D6
LB
R
A5
V
SS
B5
SEM
R
C5
UB
R
D5
A
11R
A4
CE
R
B4
A
10R
C4
A
7R
D4
NC
A
12R(1)
B3
A
8R
C3
A
5R
D3
A
2R
D2
INT
R
C2
A
4R
B2
NC
A2
A
9R
A1
A
6R
B1
NC
C1
A
3R
D1
A
1R
E1
M/
S
E2
BUSY
R
E3
A
0R
E4
A
1L
F1
V
SS
F2
BUSY
L
F3
A
0L
F4
NC
G1
INT
L
G2
A
3L
G3
A
6L
G4
NC
H1
A
2L
H2
A
5L
H3
A
10L
H4
LB
L
J1
A
4L
J2
A
8L
J3
A
11L
J4
SEM
L
K1
A
7L
K2
A
9L
K3
A
12L(1)
K4
UB
L
A6
V
SS
B10
I/O
6R
E5
V
SS
E6
V
SS
E7
I/O
4R
E8
I/O
2R
E9
I/O
0R
E10
V
DD
F5
V
DD
F6
V
SS
F8
I/O
13L
F9
I/O
14L
F10
I/O
15L
G5
V
SS
G6
I/O
3L
G7
NC
G8
I/O
11L
G9
V
SS
G10
I/O
12L
H5
CE
L
H6
I/O
1L
H7
I/O
7L
H8
NC
H9
NC
H10
I/O
10L
J5
R/
W
L
J6
OE
L
J7
I/O
4L
J8
I/O
6L
J9
V
SS
J10
I/O
9L
K5
V
DD
K6
V
DD
K7
I/O
0L
K8
I/O
2L
K9
I/O
5L
K10
I/O
8L
F7
V
DD
,
12/06/02
5639 drw 05
A3
IDT70T25/24 Pin Configurations(cont'd)
(1,2,3,4)
IDT70T25/24BF
BF100
(5)
100-Pin fpBGA
Top View
(6)
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground.
4. BF-100 package body is approximately 10mm x 10mm x 1.4mm with 0.8mm ball pitch.
NOTES:
1. A
12
is a NC for IDT70T24.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part marking.