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IDT71V321S Datasheet

HIGH-SPEED 3.3V 2K x 8 DUAL-PORT STATIC RAM

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HIGH SPEED 3.3V
IDT71V321S/L
2K X 8 DUAL-PORT
STATIC RAM WITH
INTERRUPTS
LEAD FINISH (SnPb) ARE IN EOL PROCESS - LAST TIME BUY EXPIRES JUNE 15, 2018
Features
High-speed access
– Commercial & Industrial: 25/35/55ns (max.)
Low-power operation
– IDT71V321S
Active: 325mW (typ.)
Standby: 5mW (typ.)
– IDT71V321L
Active: 325mW (typ.)
Standby: 1mW (typ.)
Two INT flags for port-to-port communications
On-chip port arbitration logic (IDT71V321 only)
BUSY output flag
Fully asynchronous operation from either port
Battery backup operation—2V data retention (L only)
TTL-compatible, single 3.3V power supply
Available in 52-pin PLCC, 64-pin TQFP and STQFP
packages
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Functional Block Diagram
OEL
CEL
R/WL
OER
CER
R/WR
I/O0L- I/O7L
BUSYL(1,2)
A10L
A0L
I/O
Control
I/O
Control
Address
Decoder
11
CEL
OEL
R/WL
MEMORY
ARRAY
ARBITRATION
and
INTERRUPT
LOGIC
Address
Decoder
11
CER
OER
R/WR
INTL(2)
NOTES:
1. IDT71V321 (MASTER):BUSY is an output
2. BUSYandINTaretotem-poleoutputs.
I/O0R-I/O7R
BUSYR(1,2)
A10R
A0R
INTR(2)
3026 drw 01
©2018 Integrated Device Technology, Inc.
1
JANUARY 2018
DSC-3026/13


Integrated Device Technology Electronic Components Datasheet

IDT71V321S Datasheet

HIGH-SPEED 3.3V 2K x 8 DUAL-PORT STATIC RAM

No Preview Available !

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
A0L
A1L
A2L
A3L
A4L
A5L
A6L
N/C
A7L
A8L
A9L
N/C
I/O0L
I/O1L
I/O2L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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


Part Number IDT71V321S
Description HIGH-SPEED 3.3V 2K x 8 DUAL-PORT STATIC RAM
Maker Integrated Device Technology
Total Page 15 Pages
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