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IDT70T24L Datasheet

  • IDT70T24L

  • HIGH-SPEED 2.5V 8/4K x 18 DUAL-PORT 8/4K x 16 DUAL-PORT STAT...

  • 21頁

  • IDT

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HIGH-SPEED 2.5V
8/4K x 18 DUAL-PORT
8/4K x 16 DUAL-PORT
STATIC RAM
Features
鈼?/div>
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PRELIMINARY
IDT70T35/34L
IDT70T25/24L
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鈼?/div>
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True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
IDT70T35/34L (IDT70T25/24L)
鈥?Commercial: 20/25ns (max.)
鈥?Industrial: 25ns (max.)
Low-power operation
鈥?IDT70T35/34L (IDT70T25/24L)
Active: 200mW (typ.)
Standby: 600
碌
W (typ.)
Separate upper-byte and lower-byte control for multiplexed
bus compatibility
IDT70T35/34L (IDT70T25/24L) easily expands data bus
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width to 36 bits (32 bits) or more using the Master/Slave
select when cascading more than one device
M/S = V
IH
for
BUSY
output flag on Master
M/S = V
IL
for
BUSY
input on Slave
BUSY
and Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
LVTTL-compatible, single 2.5V (鹵100mV) power supply
Available in a 100-pin Thin Quad Flatpack (TQFP) package
and 100-pin fine pitch Ball Grid Array (fpBGA)
Industrial temperature range (-40擄C to +85擄C) is available
for selected speeds
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
9L
-I/O
17L
(5)
I/O
0L
-I/O
8L
(4)
BUSY
L
(2,3)
I/O
9R
-I/O
17R
(5)
I/O
Control
I/O
Control
I/O
0R
-I/O
8R
(4)
BUSY
R
(2,3)
A
12R
(1)
A
0R
A
12L
(1)
A
0L
Address
Decoder
13
MEMORY
ARRAY
13
Address
Decoder
CE
L
OE
L
R/W
L
SEM
L
INT
L
(3)
NOTES:
1. A
12
is a NC for IDT70T34 and IDT70T24.
2. (MASTER):
BUSY
is output; (SLAVE):
BUSY
is input.
3.
BUSY
outputs and
INT
outputs are non-tri-stated push-pull.
4. I/O
0
x - I/O
7
x for IDT70T25/24.
5. I/O
8
x - I/O
15
x for IDT70T25/24.
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
CE
R
OE
R
R/W
R
SEM
R
INT
R
(3)
5639 drw 01
M/S
DECEMBER 2002
1
DSC-5639/2
漏2002 Integrated Device Technology, Inc.

IDT70T24L相關(guān)型號PDF文件下載

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    HIGH-SPEED 8K x 9 DUAL-PORT STATIC RAM
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  • 英文版
    HIGH-SPEED 16K x 9 DUAL-PORT STATIC RAM
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  • 英文版
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    IDT [Integrated...
  • 英文版
    HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 4K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 8K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 8K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    x16 Dual-Port SRAM
    IDT
  • 英文版
    HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 32K x 16 DUAL-PORT STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 32K x 18 DUAL-PORT STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 2K x 8 FourPort STATIC RAM
    IDT
  • 英文版
    HIGH-SPEED 2K x 8 FourPort STATIC RAM
    IDT [Integrated...
  • 英文版
    HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM
    IDT

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