
Features
HIGH-SPEED
2K x 8 FourPort TM
STATIC RAM
IDT7052S/L
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High-speed access
– Commercial: 20/25/35ns (max.)
– Industrial: 25ns (max.)
– Military: 25/35ns (max.)
Low-power operation
– IDT7052S
Active: 750mW (typ.)
Standby: 7.5mW (typ.)
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Battery backup operation—2V data retention
TTL-compatible; single 5V (±10%) power supply
Available in 120 pin and 132 pin Thin Quad Flatpacks and
108 pin PGA
Military product compliant to MIL-PRF-38535 QML
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
– IDT7052L
Active: 750mW (typ.)
Description
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Standby: 1.5mW (typ.)
True FourPort memory cells which allow simultaneous
access of the same memory locations
Fully asynchronous operation from each of the four ports:
P1, P2, P3, P4
Versatile control for write-inhibit: separate BUSY input to
control write-inhibit for each of the four ports
The IDT7052 is a high-speed 2K x 8 FourPort? Static RAM designed
to be used in systems where multiple access into a common RAM is
required. This FourPort Static RAM offers increased system performance
in multiprocessor systems that have a need to communicate in real time and
also offers added benefit for high-speed systems in which multiple access
is required in the same cycle.
Functional Block Diagram
R/ W P1
CE P1
OE P1
R/ W P4
CE P4
OE P4
I/O 0P1 -I/O 7P1
COLUMN
I/O
COLUMN
I/O
I/O 0P4 -I/O 7P4
BUSY P1
PORT 1
PORT 4
BUSY P4
A 0P1 - A 10P1
ADDRESS
DECODE
LOGIC
MEMORY
ADDRESS
DECODE
LOGIC
A 0P4 - A 10P4
ARRAY
PORT 2
PORT 3
A 0P2 - A 10P2
ADDRESS
DECODE
ADDRESS
DECODE
A 0P3 - A 10P3
BUSY P2
LOGIC
LOGIC
BUSY P3
I/O 0P2 -I/O 7P2
OE P2
CE P2
R/ W P2
COLUMN
I/O
COLUMN
I/O
I/O 0P3 -I/O 7P3
OE P3
CE P3
R/ W P3
2674 drw 01
JANUARY 2009
1
?2009 Integrated Device Technology, Inc.
DSC 2674/13