參數(shù)資料
型號: IDT72V51253L7.5BB
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: FIFO
英文描述: 128K X 18 OTHER FIFO, 4 ns, PBGA256
封裝: 17 X 17 MM, 1 MM PITCH, PLASTIC, BGA-256
文件頁數(shù): 31/50頁
文件大?。?/td> 460K
代理商: IDT72V51253L7.5BB
37
IDT72V51233/72V51243/72V51253 3.3V, MULTI-QUEUE FLOW-CONTROL DEVICES
(4 QUEUES) 18 BIT WIDE CONFIGURATION 589,824, 1,179,648 and 2,359,296 bits
COMMERCIALANDINDUSTRIAL
TEMPERATURERANGES
RCLK
RADEN
Qout
REN
tAH
tAS
0001xx
RDADD
tA
NULL QUEUE
SELECT
*A*
*B*
*C*
*E*
*F*
tQH
tENS
Q1 Wn-3
Q1 Wn-2
Q1 Wn-1
tA
Q1 Wn
tA
Q3 W0
FWFT
OV
tROV
5941 drw18
SELECT
NEW QUEUE
*D*
000011
tAH
tAS
tQH
tQS
tENH
tQS
D0 Q3
Figure 16. Read Operation and Null Queue Select
NOTES:
1. The purpose of the Null queue operation is so that the user can stop reading a block (packet) of data from a queue without filling the 2 stage output pipeline with the next words
from that queue.
2. Please see Figure 17, Null Queue Flow Diagram.
Cycle:
*A* Null-Q of device 0 is selected, when word Wn-1 from previously selected Q1 is read.
*B*
REN is HIGH and Wn (Last Word of the Packet) of Q1 is pipelined onto the O/P register.
Note: *B* and *C* are a minimum 2 RCLK cycles between Q selects.
*C* The Null-Q is seen as an empty queue on the read side, therefore Wn of Q1 remains in the O/P register and
OV goes HIGH.
*D* A new Q, Q3 is selected and the 1st word of Q3 will fall through present on the O/P register on cycle *F*.
5941 drw19
Queue 1
Memory
*A*
Null
Queue
*B*
Null
Queue
*C*
O/P Reg.
*D*
*E*
*F*
Null
Queue
Queue 3
Memory
Q1
Wn
Queue 3
Memory
O/P Reg.
Qn
Wn-1
Q1
Wn
Q1
Wn
Q1
Wn
Q1
Wn
Q1
Wn
Q1
Wn
Q3
W0
Q1
Wn
Q3
W1
Q3
W0
Figure 17. Null Queue Flow Diagram
相關(guān)PDF資料
PDF描述
IDT742244CTL FAST CMOS OCTAL BUFFER/LINE DRIVERS
IDT742244CTLB FAST CMOS OCTAL BUFFER/LINE DRIVERS
IDT742244CTP FAST CMOS OCTAL BUFFER/LINE DRIVERS
IDT742244CTPB FAST CMOS OCTAL BUFFER/LINE DRIVERS
IDT742244CTPY FAST CMOS OCTAL BUFFER/LINE DRIVERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT72V51253L7-5BB8 功能描述:IC FLOW CTRL MULTI QUEUE 256-BGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA(27x27) 包裝:散裝
IDT72V51253L7-5BBI 功能描述:IC FLOW CTRL MULTI QUEUE 256-BGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA(27x27) 包裝:散裝
IDT72V51256L6BB 功能描述:IC FLOW CTRL MULTI QUEUE 256-BGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA(27x27) 包裝:散裝
IDT72V51256L6BB8 功能描述:IC FLOW CTRL MULTI QUEUE 256-BGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA(27x27) 包裝:散裝
IDT72V51256L7-5BB 功能描述:IC FLOW CTRL MULTI QUEUE 256-BGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA(27x27) 包裝:散裝