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3.3V MULTI-QUEUE FLOW-CONTROL DEVICES (4 QUEUES) 18 BIT WIDE CONFIGURATION
589,824 bits 1,179,648 bits 2,359,296 bits
IDT72V51233 IDT72V51243 IDT72V51253
FEATURES:
• Choose from among the following memory density options: IDT72V51233 ⎯ Total Available Memory = 589,824 bits IDT72V51243 ⎯ Total Available Memory = 1,179,648 bits IDT72V51253 ⎯ Total Available Memory = 2,359,296 bits
• 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
• Individual, Active queue flags (.