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IDT7024S17JB Datasheet

  • IDT7024S17JB

  • HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM

  • 20頁

  • IDT

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HIGH-SPEED
4K x 16 DUAL-PORT
STATIC RAM
Integrated Device Technology, Inc.
IDT7024S/L
FEATURES:
鈥?True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
鈥?High-speed access
鈥?Military: 20/25/35/55/70ns (max.)
鈥?Commercial: 15/17/20/25/35/55ns (max.)
鈥?Low-power operation
鈥?IDT7024S
Active: 750mW (typ.)
Standby: 5mW (typ.)
鈥?IDT7024L
Active: 750mW (typ.)
Standby: 1mW (typ.)
鈥?Separate upper-byte and lower-byte control for
multiplexed bus compatibility
鈥?IDT7024 easily expands data bus width to 32 bits or
more using the Master/Slave select when cascading
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
more than one device
M/
S
= H for
BUSY
output flag on Master
M/
S
= L for
BUSY
input on Slave
Busy and Interrupt Flags
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Devices are capable of withstanding greater than 2001V
electrostatic discharge.
Fully asynchronous operation from either port
Battery backup operation鈥?V data retention
TTL-compatible, single 5V (鹵10%) power supply
Available in 84-pin PGA, 84-pin quad flatpack, 84-pin
PLCC, and 100-pin Thin Quad Plastic Flatpack
Industrial temperature range (鈥?0擄C to +85擄C) is avail-
able, tested to military electrical specifications
FUNCTIONAL BLOCK DIAGRAM
R/
W
L
UB
L
R/
W
R
UB
R
LB
L
CE
L
OE
L
LB
R
CE
R
OE
R
I/O
8L
-I/O
15L
I/O
Control
I/O
0L
-I/O
7L
I/O
Control
I/O
8R
-I/O
15R
I/O
0R
-I/O
7R
BUSY
L
(1,2)
BUSY
R(1,2)
Address
Decoder
12
A
11L
A
0L
MEMORY
ARRAY
12
Address
Decoder
A
11R
A
0R
NOTES:
1. (MASTER):
BUSY
is output;
(SLAVE):
BUSY
is input.
2.
BUSY
outputs
and
INT
outputs
are non-tri-stated
push-pull.
CE
L
OE
L
R/
W
L
SEM
L
(2)
INT
L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
CE
R
OE
R
R/
W
R
SEM
R
INT
R(2)
2740 drw 01
M/
S
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
漏1996 Integrated Device Technology, Inc.
For latest information contact IDT鈥檚 web site at www.idt.com or fax-on-demand at 408-492-8391.
OCTOBER 1996
DSC-2740/6
6.15
1

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