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IDT723622 Datasheet

  • IDT723622

  • CMOS SyncBiFIFO?

  • IDT

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CMOS SyncBiFIFO
鈩?/div>
256 x 36 x 2, 512 x 36 x 2,
1024 x 36 x 2
Integrated Device Technology, Inc.
IDT723622
IDT723632
IDT723642
FEATURES:
鈥?Free-running CLKA and CLKB may be asynchronous or
coincident (simultaneous reading and writing of data on a
single clock edge is permitted)
鈥?Two independent clocked FIFOs buffering data in oppo-
site directions
鈥?Memory storage capacity:
IDT723622鈥?56 x 36 x 2
IDT723632鈥?12 x 36 x 2
IDT723642鈥?024 x 36 x 2
鈥?Mailbox bypass register for each FIFO
鈥?Programmable Almost-Full and Almost-Empty flags
鈥?Microprocessor Interface Control Logic
鈥?IRA, ORA,
AEA
, and
AFA
flags synchronized by CLKA
鈥?IRB, ORB,
AEB
, and
AFB
flags synchronized by CLKB
鈥?Supports clock frequencies up to 67MHz
鈥?Fast access times of 11ns
鈥?Available in 132-pin Plastic Quad Flatpack (PQF) or
space-saving 120-pin Thin Quad Flatpack (PF)
鈥?Low-power 0.8-Micron Advanced CMOS technology
鈥?Industrial temperature range (-40
o
C to +85
o
C) is avail-
able, tested to military electrical specifications
DESCRIPTION:
The IDT723622/723632/723642 is a monolithic, high-speed,
low-power, CMOS Bidirectional SyncFIFO (clocked) memory
which supports clock frequencies up to 67MHz and have read
access times as fast as 11ns. Two independent 256/512/
1024x36 dual-port SRAM FIFOs on board each chip buffer
data in opposite directions. Each FIFO has flags to indicate
empty and full conditions and two programable flags (almost
FUNCTIONAL BLOCK DIAGRAM
CLKA
MBF1
Mail 1
Register
256 x 36
512 x 36
1024 x 36
SRAM
Input
Register
Output
Register
W/
R
A
ENA
MBA
CSA
Port-A
Control
Logic
RST1
FIFO1,
Mail1
Reset
Logic
36
36
Write
Pointer
Read
Pointer
Status Flag
Logic
ORB
AFA
FS
0
FS
1
A
0
- A
35
IRA
FIFO 1
AEB
Programmable Flag
Offset Registers
9
FIFO 2
B
0
- B
35
ORA
AEA
36
Status Flag
Logic
Write
Pointer
36
IRB
AFB
FIFO2,
Mail2
Reset
Logic
Read
Pointer
RST2
Output
Register
256 x 36
512 x 36
1024 x 36
SRAM
Mail 2
Register
Input
Register
Port-B
Control
Logic
CLKB
CSB
W
/RB
ENB
MBB
MBF2
SyncFIFO is a trademark and the IDT logo is a registered trademark of Integrated Device Technology, Inc.
3022 drw 01
COMMERCIAL TEMPERATURE RANGE
漏1996
Integrated Device Technology, Inc.
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
DECEMBER 1996
DSC-3022/3
5.22

IDT723622 PDF文件相關(guān)型號(hào)

IDT723632

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