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71321LA55PPGI8

Description
SRAM - 双端口,同步 存储器 IC 16Kb 并联 55 ns 52-TQFP(10x10)
Categorysemiconductor    memory   
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Environmental Compliance
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71321LA55PPGI8 Overview

SRAM - 双端口,同步 存储器 IC 16Kb 并联 55 ns 52-TQFP(10x10)

71321LA55PPGI8 Parametric

Parameter NameAttribute value
category
MakerRenesas Electronics Corporation
series-
PackageTape and Reel (TR)
memory typeVolatile
memory formatSRAM
technologySRAM - Dual Port, Synchronous
storage16Kb
memory organization2K x 8
memory interfacein parallel
Write cycle time - words, pages55ns
interview time55 ns
Voltage - Power supply4.5V ~ 5.5V
Operating temperature-40°C ~ 85°C(TA)
Installation typesurface mount type
Package/casing52-LQFP
Supplier device packaging52-TQFP(10x10)
Basic product number71321LA
HIGH SPEED
2K X 8 DUAL-PORT
STATIC RAM
WITH INTERRUPTS
Features
71321SA/LA
71421SA/LA
High-speed access
– Commercial: 20/35/55ns (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, 52-Pin STQFP, 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.
SEPTEMBER 2019
1
©2019 Integrated Device Technology, Inc.
DSC-2691/17
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