IDT 70V27S/L
High-Speed 3.3V 32K x 16 Dual-Port Static RAM
Commercial and Industrial Temperature Range
Description:
The IDT70V27 is a high-speed 32K x 16 Dual-Port Static RAM,
designed to be used as a stand-alone 512K-bit Dual-Port RAM or as a
combination MASTER/SLAVE Dual-Port RAM for 32-bit and wider 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.
The 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 the chip enables (
CE
0
and
CE
1
) 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 500mW of power. The IDT70V27
is packaged in a 100-pin Thin Quad Flatpack (TQFP), a 108-pin ceramic
Pin Grid Array (PGA), and a 144-pin Fine Pitch BGA (fp BGA).
Pin Configurations
(1,2,3)
INDEX
A
9L
A
10L
A
11L
A
12L
A
13L
A
14L
NC
NC
NC
LB
L
UB
L
CE
0L
CE
1L
SEM
L
Vcc
R/W
L
OE
L
GND
GND
I/O
15L
I/O
14L
I/O
13L
I/O
12L
I/O
11L
I/O
10L
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
1
75
2
74
3
73
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
A
8L
A
7L
A
6L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
NC
INT
L
BUSY
L
GND
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
A
8R
IDT70V27PF
PN100-1
(4)
100-PIN TQFP
TOP VIEW
(5)
51
25
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
A
9R
A
10R
A
11R
A
12R
A
13R
A
14R
NC
NC
NC
LB
R
UB
R
CE
0R
CE
1R
SEM
R
GND
R/W
R
OE
R
GND
GND
I/O
15R
I/O
14R
I/O
13R
I/O
12R
I/O
11R
I/O
10R
3603 drw 02
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 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.
I/O
9L
I/O
8L
Vcc
I/O
7
L
I/O
6L
I/O
5L
I/O
4L
I/O
3L
I/O
2L
GND
I/O1
L
I/O
0L
GND
I/O
0R
I/O
1R
I/O
2R
I/O
3R
I/O
4R
I/O
5R
I/O
6R
Vcc
I/O
7R
I/O
8R
I/O
9R
NC
2
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
