參數(shù)資料
型號： IDT72T51243L5BBI
廠商： Integrated Device Technology, Inc.
英文描述： 2.5V MULTI-QUEUE FLOW-CONTROL DEVICES (32 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648 bits and 2,359,296 bits
中文描述： 2.5V的多隊列流量控制器件（32隊列）36位寬度的配置1179648位和2359296位
文件頁數(shù)： 26/55頁
文件大?。?/td> 544K
代理商： IDT72T51243L5BBI
26
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72T51233/72T51243/72T51253 2.5V, MULTI-QUEUE FLOW-CONTROL DEVICES
(4 QUEUES) 18 BIT WIDE CONFIGURATION 589,824, 1,179,648 and 2,359,296 bits
PAE
n- POLLED BUS
If FM is HIGH at Master Reset then the
PAE
n bus operates in Polled
(Looped) mode. In polled mode the
PAE
n bus automatically cycles through the
devices connected in expansion. In expansion mode one device will be set
as the Master, MAST input tied HIGH, all other devices will have MAST tied
LOW. The master device is the first device to take control of the
PAE
n bus and
place the
PAE
status of its queues onto the bus on the first rising edge of RCLK
after the
MRS
input goes HIGH once a Master Reset is complete. The ESYNC
(
PAE
sync pulse) output of the first device (master device), will be HIGH
for one cycle of RCLK indicating that it is has control of the
PAE
n bus for
that cycle.
The device also passes a “token” onto the next device in the chain, the next
device assumng control of the
PAE
n bus on the next RCLK cycle. This token
passing is done via the EXO outputs and EXI inputs of the devices (“
PAE
n
Expansion Out” and “
PAE
n Expansion In”). The EXO output of the first device
connecting to the EXI input of the second device in the chain, the EXO of the
second device connects to the EXI of the third device and so on. The EXO of
the final device in a chain connects to the EXI of the first device, so that once the
PAE
n bus has cycled through all devices control is again passed to the first
device. The EXO output of a device will be HIGH for the RCLK cycle it has control
of the bus.
Please refer to Figure 27,
PAE
n Bus – Polled Mode
for timng information.
相關(guān)PDF資料
PDF描述
IDT72T51243L6BB 2.5V MULTI-QUEUE FLOW-CONTROL DEVICES (32 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648 bits and 2,359,296 bits
IDT72T51243L6BBI 2.5V MULTI-QUEUE FLOW-CONTROL DEVICES (32 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648 bits and 2,359,296 bits
IDT72T51253 2.5V MULTI-QUEUE FLOW-CONTROL DEVICES (32 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648 bits and 2,359,296 bits
IDT72T51253L5BB 2.5V MULTI-QUEUE FLOW-CONTROL DEVICES (32 QUEUES) 36 BIT WIDE CONFIGURATION 1,179,648 bits and 2,359,296 bits
IDT72T54262L5BB 2.5V QUAD/DUAL TeraSync⑩ DDR/SDR FIFO x10 QUAD FIFO or x10/x20 DUAL FIFO CONFIGURATIONS
相關(guān)代理商/技術(shù)參數(shù)
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IDT72T51258L5BB 功能描述:IC FIFO 327768X20 5NS 324BGA RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72T 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433
IDT72T51258L6-7BB 功能描述:IC FIFO 327768X20 6-7NS 324BGA RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72T 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433
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