6.42
IDT70914S
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
2
,
3490 drw 03
10
11
12
13
14
15
16
50
49
48
47
46
45
44
INDEX
17
18
19
20
21
22
23
24
25
26
51
52
53
54
55
56
57
58
59
60
98765432
1
68 67 66 65 64 63 62 61
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
A6L
A7L
A8L
A9L
A10L
A11L
OEL
VCC
R/WL
N/C
N/C
CE
L
GND
I/O
8L
I/O7L
I/O6L
N
/
C
I
/
O
5
L
V
C
C
I
/
O
4
L
I
/
O
3
L
I
/
O
2
L
I
/
O
1
L
I
/
O
0
L
G
N
D
G
N
D
I
/
O
0
R
I
/
O
1
R
I
/
O
2
R
I
/
O
3
R
V
C
C
I
/
O
4
R
I
/
O
5
R
A7R
A8R
A9R
A10R
A11R
OER
GND
GND
R/W
R
N/C
N/C
CE
R
GND
I/O
8R
I/O7R
I/O6R
A
5
L
A
4
L
A
3
L
A
2
L
A
1
L
A
0
L
C
L
K
E
N
L
C
L
K
L
C
L
K
R
C
L
K
E
N
R
A
0
R
A
1
R
A
2
R
A
3
R
A
4
R
A
5
R
A
6
R
IDT70914J
J68-1
(4)
68-Pin PLCC
Top View
(5)
N/C
N/C
Pin Configurations
(1,2,3)
Description
The IDT70914 is a high-speed 4K x 9 bit synchronous Dual-Port RAM.
The memory array is based on Dual-Port memory cells to allow
simultaneous access from both ports. Registers on control, data, and
address inputs provide low set-up and hold times. The timing latitude
provided by this approach allow systems to be designed with very short
cycle times. With an input data register, this device has been optimized for
applications having unidirectional data flow or bi-directional data flow in
bursts.
The IDT70914 utilizes a 9-bit wide data path to allow for parity at the
user's option. This feature is especially useful in data communication
applications where it is necessary to use a parity bit for transmission/
reception error checking.
Fabricated using IDT’s CMOS high-performance technology, these
Dual-Ports typically operate on only 850mW of power at maximum high-
speed clock-to-data output times as fast as 12ns. An automatic power
down feature, controlled by CE, permits the on-chip circuitry of each port
to enter a very low standby power mode.
The IDT70914 is packaged in a 68-pin PLCC, and an 80-pin TQFP.
Military grade product is manufactured in compliance with the latest revision
of MIL-PRF-38535 QML, making it ideally suited for military temperature
applications demanding the highest level of performance and reliability.
NOTES:
1. All V
CC pins must be connected to power supply.
2. All ground pins must be connected to ground supply.
3. J68-1 package body is approximately .95 in x .95 in x .17 in.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part-marking.
