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71321LA20TF

Description
SRAM 2KX8 DUAL PORT MSTR W/INT
Categorystorage   
File Size135KB,17 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
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71321LA20TF Overview

SRAM 2KX8 DUAL PORT MSTR W/INT

71321LA20TF Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIDT (Integrated Device Technology, Inc.)
Product CategorySRAM
RoHSN
Memory Size16 kbit
Organization2 k x 8
Access Time20 ns
Interface TypeParallel
Supply Voltage - Max5.5 V
Supply Voltage - Min4.5 V
Supply Current - Max110 mA
Minimum Operating Temperature0 C
Maximum Operating Temperature+ 70 C
Mounting StyleSMD/SMT
Package / CaseTQFP-64
PackagingTray
Height1.4 mm
Length10 mm
Memory TypeSDR
TypeAsyncronous
Width10 mm
Moisture SensitiveYes
Factory Pack Quantity40
Unit Weight0.012720 oz
HIGH SPEED
2K X 8 DUAL-PORT
STATIC RAM
WITH INTERRUPTS
Features
IDT71321SA/LA
IDT71421SA/LA
High-speed access
– Commercial: 20/25/35/55ns (max.)
– Industrial: 25/55ns (max.)
Low-power operation
– IDT71321/IDT71421SA
Active: 325mW (typ.)
Standby: 5mW (typ.)
– IDT71321/421LA
Active: 325mW (typ.)
Standby: 1mW (typ.)
Two
INT
flags for port-to-port communications
MASTER IDT71321 easily expands data bus width to 16-or-
more-bits using SLAVE IDT71421
On-chip port arbitration logic (IDT71321 only)
BUSY
output flag on IDT71321;
BUSY
input on IDT71421
Fully asynchronous operation from either port
Battery backup operation – 2V data retention (LA only)
TTL-compatible, single 5V ±10% power supply
Available in 52-Pin PLCC, 64-Pin TQFP, and 64-Pin STQFP
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Functional Block Diagram
OE
L
CE
L
R/W
L
OE
R
CE
R
R/W
R
I/O
0L
- I/O
7L
I/O
Control
BUSY
L
A
10L
A
0L
(1,2)
I/O
Control
I/O
0R
-I/O
7R
BUSY
R
Address
Decoder
11
(1,2)
MEMORY
ARRAY
11
Address
Decoder
A
10R
A
0R
CE
L
OE
L
R/W
L
ARBITRATION
and
INTERRUPT
LOGIC
CE
R
OE
R
R/W
R
INT
L
(2)
INT
R
2691 drw 01
(2)
NOTES:
1. IDT71321 (MASTER):
BUSY
is open drain output and requires pullup resistor of 270Ω.
IDT71421 (SLAVE):
BUSY
is input.
2. Open drain output: requires pullup resistor of 270Ω.
OCTOBER 2008
1
©2008 Integrated Device Technology, Inc.
DSC-2691/13
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