IDT71V321L Просмотр технического описания (PDF) - Integrated Device Technology
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IDT71V321L Datasheet PDF : 15 Pages
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IDT71V321S/L
High Speed 3.3V 2K x 8 Dual-Port Static RAM with Interrupts
Description
The IDT71V321 is a high-speed 2K x 8 Dual-Port Static RAMs with
internal interrupt logic for interprocessor communications. The
IDT71V321 is designed to be used as a stand-alone 8-bit Dual-Port
RAM.
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 CE, permits the on chip circuitry of each
Industrial and Commercial Temperature Ranges
port to enter a very low standby power mode.
Fabricated using CMOS high-performance technology, these de-
vices typically operate on only 325mW of power. Low-power (L) ver-
sions offer battery backup data retention capability, with each Dual-Port
typically consuming 200µW from a 2V battery.
The IDT71V321 devices are packaged in a 52-pin PLCC, a 64-pin
TQFP (thin quad flatpack), and a 64-pin STQFP (super thin quad
flatpack).
Pin Configurations(1,2,3)
INDEX
A1L
A2L
A3L
A4L
A5L
A6L
A7L
A8L
A9L
I/O 0L
I/O 1L
I/O 2L
I/O 3L
87 6 5 4 3 2 1 52 51 50 49 48 4476
9
45
10
44
11
43
12
IDT71V321J
42
13
J52(4)
41
14
52-Pin PLCC
40
15
Top View(5)
39
16
38
17
37
18
36
19
35
20
34
21 22 23 24 25 26 27 28 29 30 31 32 33
OER
A 0R
A 1R
A 2R
A 3R
A 4R
A 5R
A 6R
A 7R
A 8R
A 9R
NC
I/O7R
3026 drw 02
INDEX
NOTES:
1. All VCC pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
3. J52-1 package body is approximately .75 in x .75 in x .17 in.
PP64-1 package body is approximately 10mm x 10mm x 1.4mm.
PN64-1 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.
OEL
1
A0L
2
A1L
3
A2L
4
A3L
5
A4L
6
A5L
7
A6L
8
N/C
9
A7L 10
A8L 11
A9L
12
N/C 13
I/O0L 14
I/O1L 15
I/O2L 16
6.242
IDT71V321PF or TF
PP64(4)
&
PN64(4)
64-Pin STQFP
64-Pin TQFP
Top View(5)
48 OER
47 A 0R
46 A 1R
45 A 2R
44 A 3R
43 A 4R
42 A 5R
41 A 6R
40 N/C
39 A 7R
38 A 8R
37 A 9R
36 N/C
35 N/C
34 I/O7R
33 I/O6R
3026 drw 03
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