IDT72P51339L6BBI8 IDT, Integrated Device Technology Inc, IDT72P51339L6BBI8 Datasheet - Page 25

• Manufacturer Part Number: IDT72P51339L6BBI8
• Description: IC FLOW CTRL 36BIT 256-BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT72P51339L6BBI8

• Configuration: Dual
• Density: 576Kb
• Access Time (max): 3.7ns
• Word Size: 36b
• Organization: 2Kx36x8
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: BGA
• Clock Freq (max): 166MHz
• Supply Current: 150mA
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 256
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72P51339L6BBI8

QUEUE DESCRIPTION
CONFIGURATION OF THE IDT MULTI-QUEUE FLOW-CONTROL DEVICE
trol devices can be configured in distinct modes, namely Packet mode, FIFO
flag (EF) signaling. EF is an active LOW signal. When EF is LOW it signifies the
selected (present) queue is empty. On the write port, signal FF/IR is configured
signaling. OR is an active LOW signal. When OR is HIGH, it signifies there is no
available word to read. On the write port, signal FF/IR is configured for input
IDT Standard
IDT72P51339/72P51349/72P51359/72P51369 1.8V, MQ FLOW-CONTROL DEVICES
(8 QUEUES) 36 BIT WIDE CONFIGURATION 589, 824, 1,179,648, 2,359,296, and 4,718,592
The IDT72P51339/72P51349/72P51359/72P51369 multi-queue flow-con-
In IDT Standard mode the read port signal EF/OR is configured for empty
In FWFT mode the read port signal EF/OR is configured for output ready (OR)
Mode
Packet Mode
Data Bus
FWFT Mode
RCLK
RCLK
Operational Modes
Qout
REN
Qout
REN
OR
EF
Figure 6. First Word Fall Through (FWFT) mode illustrated (Read Port)
IDT Standard
Mode
Figure 5. IDT Standard mode illustrated (Read Port)
FIFO Mode
Last Data Word
FWFT Mode
25
Last Data Word
mode, Standard mode, and FWFT mode. To configure the device operational
mode set the configuration pins (PKT, FWFT) as indicated in Table 3, Mode
Configuration.
TABLE 3 — MODE CONFIGURATION
for full flag (FF) signaling. FF is an active LOW signal. When FF is LOW it signifies
the selected (present) queue is full. Refer to Figure 5, IDT Standard mode
illustrated (Read Port).
ready (IR) signaling. IR is an active LOW signal. When IR is LOW it signifies the
write port is ready for writing into the selected queue. Refer to Figure 6, FWFT
mode illustrated (Read Port).
Configuration Signals
PKT
LOW
LOW
HIGH
HIGH
FWFT
LOW
HIGH
LOW
HIGH
FIFO mode - IDT Standard Mode
FIFO mode - FWFT
Packet mode - IDT Standard Mode
Packet mode - FWFT
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
6716 drw09
Modes
6716 drw10
AUGUST 4, 2005