IDT72P51769L6BB IDT, Integrated Device Technology Inc, IDT72P51769L6BB Datasheet - Page 39

• Manufacturer Part Number: IDT72P51769L6BB
• Description: IC FLOW CTRL 36BIT 256-BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT72P51769L6BB

• Configuration: Dual
• Density: 4.5Mb
• Access Time (max): 3.7ns
• Word Size: 36b
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: BGA
• Clock Freq (max): 166MHz
• Supply Current: 150mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 256
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72P51769L6BB

Leaving a MARK Active
read port determines whether the MARK remains active or is de-activated.
IDT72P51749/72P51759/72P51769 1.8V, MULTI-QUEUE FLOW-CONTROL DEVICES
(128 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648, 2,359,296, and 4,718,592
bits
During a Queue switch the value of WEN for the write port and REN for the
Leaving a MARK active on the Write Port
Leaving a MARK active on the Read Port
WCLK
WADEN
WEN
RCLK
RADEN
REN
Figure 23. Leaving a MARK active on the Write Port
Figure 24. Leaving a MARK active on the Read Port
Write Queue
Select Cycle
Read Queue
Select Cycle
Leave the MARK
Leave the MARK
(A rewrite
request)
(A re-read
request)
39
Write Queue
MARK Cycle
Read Queue
MARK Cycle
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
SEPTEMBER 27, 2004
6714 drw40
6714 drw41