3.3VMULTI-QUEUEFLOW-CONTROLDEVICES
(4QUEUES)18BITWIDECONFIGURATION
IDT72V51233
IDT72V51243
IDT72V51253
589,824bits
1,179,648bits
2,359,296bits
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Individual, Active queue flags (OV, FF, PAE, PAF)
4 bit parallel flag status on both read and write ports
Provides continuous PAE and PAF status of up to 4 Queues
Global Bus Matching - (All Queues have same Input Bus Width
and Output Bus Width)
User Selectable Bus Matching Options:
- x18in to x18out
- x9in to x18out
FEATURES:
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Choose from among the following memory density options:
IDT72V51233
IDT72V51243
IDT72V51253
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Total Available Memory = 589,824 bits
Total Available Memory = 1,179,648 bits
Total Available Memory = 2,359,296 bits
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Configurable from 1 to 4 Queues
Queues may be configured at master reset from the pool of
Total Available Memory in blocks of 512 x 18 or 1,024 x 9
Independent Read and Write access per queue
User programmable via serial port
Default multi-queue device configurations
-IDT72V51233: 8,192 x 18 x 4Q or 16,384 x 9 x 4Q
-IDT72V51243: 16,384 x 18 x 4Q or 32,768 x 9 x 4Q
-IDT72V51253: 32,768 x 18 x 4Q or 65,536 x 9 x 4Q
100% Bus Utilization, Read and Write on every clock cycle
166 MHz High speed operation (6ns cycle time)
3.7ns access time
- x18in to x9out
- x9in to x9out
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FWFT mode of operation on read port
Partial Reset, clears data in single Queue
Expansion of up to 8 multi-queue devices in parallel is available
JTAG Functionality (Boundary Scan)
Available in a 256-pin PBGA, 1mm pitch, 17mm x 17mm
HIGH Performance submicron CMOS technology
Industrial temperature range (-40°C to +85°C) is available
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FUNCTIONALBLOCKDIAGRAM
MULTI-QUEUE FLOW-CONTROL DEVICE
WADEN
FSTR
RADEN
ESTR
RDADD
REN
Q0
WRADD
WEN
6
5
RCLK
WCLK
OE
Q
out
D
in
x9, x18
x9, x18
DATA IN
DATA OUT
OV
FF
PAF
Q3
PAE
PAFn
4
PAEn
4
5941 drw01
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FEBRUARY 2009
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
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©2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
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