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IDT723614L20PF fiches techniques PDF

Integrated Device Technology - CMOS SyncBiFIFOO WITH BUS MATCHING AND BYTE SWAPPING 64 x 36 x 2

Numéro de référence IDT723614L20PF
Description CMOS SyncBiFIFOO WITH BUS MATCHING AND BYTE SWAPPING 64 x 36 x 2
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT723614L20PF fiche technique
CMOS SyncBiFIFO
WITH BUS MATCHING AND BYTE SWAPPING
64 x 36 x 2
IDT723614
Integrated Device Technology, Inc.
FEATURES:
• Free-running CLKA and CLKB can be asynchronous or
coincident (simultaneous reading and writing of data on a
single clock edge is permitted)
• Two independent clocked FIFOs (64 x 36 storage
capacity each) buffering data in opposite directions
• Mailbox bypass Register for each FIFO
• Dynamic Port B bus sizing of 36-bits (long word), 18-bits
(word), and 9-bits (byte)
• Selection of Big- or Little-Endian format for word and
byte bus sizes
• Three modes of byte-order swapping on port B
• Programmable Almost-Full and Almost-Empty Flags
• Microprocessor interface control logic
EFA, FFA, AEA, and AFA flags synchronized by CLKA
EFB, FFB, AEB, and AFB flags synchronized by CLKB
• Passive parity checking on each port
• Parity generation can be selected for each port
• Low-power advanced BiCMOS technology
• Supports clock frequencies up to 67 MHz
• Fast access times of 10 ns
• Available in 132-pin plastic quad flat package (PQF) or
space-saving 120-pin thin quad flat package (TQFP)
• Industrial temperature range (-40°C to +85°C) is avail-
able, tested to military electrical specifications
FUNCTIONAL BLOCK DIAGRAM
CLKA
CSA
W/RA
ENA
MBA
Port-A
Control
Logic
Mail 1
Register
Parity
Gen/Check
MBF1
PEFB
PGB
RST
ODD/
EVEN
Device
Control
FFA
AFA
FS0
FS1
A0 - A35
EFA
AEA
36
64 x 36
SRAM
Write Read
Pointer Pointer
FIFO1
FIFO2
Status Flag
Logic
Programmable Flag
Offset Register
Status Flag
Logic
Read Write
Pointer Pointer
36
EFB
AEB
B0-B35
FFB
AFB
36
64 x 36
SRAM
PGA
PEFA
MBF2
Parity
Gen/Check
Mail 2
Register
Port-B
Control
Logic
The IDT logo is a registered trademark and SyncBiFIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
©1997 Integrated Device Technology, Inc
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
CLKB
CSB
W/RB
ENB
BE
SIZ0
SIZ1
SW0
SW1 3146 drw 01
MAY 1997
DSC-3146/4
1

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