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IDT723666 Datasheet

  • IDT723666

  • CMOS TRIPLE BUS SyncFIFO?

  • IDT

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CMOS TRIPLE BUS SyncFIFO
TM
WITH BUS-MATCHING
2,048 x 36 x 2
4,096 x 36 x 2
8,192 x 36 x 2
IDT723656
IDT723666
IDT723676
FEATURES
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Memory storage capacity:
IDT723656 鈥?2,048 x 36 x 2
IDT723666 鈥?4,096 x 36 x 2
IDT723676 鈥?8,192 x 36 x 2
Clock frequencies up to 83 MHz (8ns access time)
Two independent FIFOs buffer data between one bidirectional
36-bit port and two unidirectional 18-bit ports (Port C receives
and Port B transmits)
18-bit (word) and 9-bit (byte) bus sizing of 18 bits (word) on
Ports B and C
Select IDT Standard timing (using
EFA
,
EFB
,
FFA
, and
FFC
flag
functions) or First Word Fall Through Timing (using ORA, ORB,
IRA, and IRC flag functions)
Programmable Almost-Empty and Almost-Full flags; each has
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five default offsets (8, 16, 64, 256 and 1024)
Serial or parallel programming of partial flags
Big- or Little-Endian format for word and byte bus sizes
Loopback mode on Port A
Retransmit Capability
Master Reset clears data and configures FIFO, Partial Reset
clears data but retains configuration settings
Mailbox bypass registers for each FIFO
Free-running CLKA, CLKB and CLKC may be asynchronous or
coincident (simultaneous reading and writing of data on a single
clock edge is permitted)
Auto power down minimizes power dissipation
Available in a space-saving 128-pin Thin Quad Flatpack (TQFP)
Pin compatible to the lower density parts, IDT723626/3636/3646
Industrial temperature range (鈥?0擄C to +85擄C) is available
擄
擄
FUNCTIONAL BLOCK DIAGRAM
MBF1
CLKA
CSA
W/RA
ENA
MBA
LOOP
MRS1
PRS1
Mail 1
Register
Output Bus-
Matching
Input
Register
36
RAM ARRAY
2,048 x 36
4,096 x 36
8,192 x 36
36
Output
Register
Port-A
Control
Logic
18
B
0
-B
17
FIFO1,
Mail1
Reset
Logic
36
Port-B
Control
Logic
Write
Pointer
Read
Pointer
CLKB
RENB
CSB
MBB
SIZEB
FFA/IRA
AFA
FS2
FS0/SD
FS1/SEN
A
0
-A
35
EFA/ORA
AEA
FIFO1
Status Flag
Logic
Common
Port
Control
Logic
(B and C)
EFB/ORB
AEB
Programmable Flag
Offset Registers
13
FIFO2
Timing
Mode
BE
Status Flag
Logic
Read
Pointer
Write
Pointer
FIFO2,
Mail2
Reset
Logic
FWFT
FFC/IRC
AFC
MRS2
PRS2
36
RT1
RTM
RT2
Input
Register
36
RAM ARRAY
Input Bus-
Matching
Output
Register
FIFO1 and
FIFO2
Retransmit
Logic
2,048 x 36
4,096 x 36
8,192 x 36
Mail 2
Register
36
18
C
0
-C
17
CLKC
WENC
MBC
SIZEC
5611 drw01
Port-C
Control
Logic
MBF2
IDT and the IDT logo are registered trademark of Integrated Device Technology, Inc. SyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
1
錚?/div>
2003 Integrated Device Technology, Inc.
All rights reserved.
Product specifications subject to change without notice.
NOVEMBER 2003
DSC-5611/4

IDT723666相關(guān)型號(hào)PDF文件下載

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