參數(shù)資料
型號(hào)： 72235LB25JGI
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： FIFO
英文描述： 2K X 18 OTHER FIFO, 15 ns, PQCC68
封裝： GREEN, PLASTIC, LCC-68
文件頁數(shù)： 7/16頁
文件大?。?/td> 178K
代理商： 72235LB25JGI
15
IDT72205LB/72215LB/72225LB/72235LB/72245LB CMOS SyncFIFOTM
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
COMMERCIALANDINDUSTRIAL
TEMPERATURERANGES
OCTOBER 22, 2008
Figure 21. Block Diagram of 768 x 18, 1,536 x 18, 3,072 x 18, 6,144 x 18, 12,288 x 18 Synchronous
FIFO Memory With Programmable Flags used in Depth Expansion Configuration
LOAD
WRITE CLOCK
WRITE ENABLE
READ CLOCK
READ ENABLE
OUTPUT ENABLE
DATA IN
DATA OUT
RESET
IDT
72205LB
72215LB
72225LB
72235LB
72245LB
FIRST LOAD (
)
Vcc
IDT
72205LB
72215LB
72225LB
72235LB
72245LB
IDT
72205LB
72215LB
72225LB
72235LB
72245LB
2766 drw 23
RCLK
WCLK
RCLK
WCLK
RCLK
WCLK
Dn
Qn
Dn
Qn
Dn
Qn
DEPTH EXPANSION CONFIGURATION —
(WITH PROGRAMMABLE FLAGS)
Thesedevicescaneasilybeadaptedtoapplicationsrequiringmorethan256/
512/1,024/2,048/4,096wordsofbuffering. Figure21 showsDepthExpansion
usingthreeIDT72205LB/72215LB/72225LB/72235LB/72245LBs. Maximum
depth is limited only by signal loading. Follow these steps:
1. The first device must be designated by grounding the First Load (
FL)
control input.
2. All other devices must have
FL in the HIGH state.
3. The Write Expansion Out (
WXO) pin of each device must be tied to
the Write Expansion In (
WXI) pin of the next device. See Figure 21.
4. The Read Expansion Out (
RXO) pin of each device must be tied to the
Read Expansion In (
RXI) pin of the next device. See Figure 21.
5. All Load (
LD) pins are tied together.
6. The Half-Full Flag (
HF) is not available in this Depth Expansion
Configuration.
7.
EF, FF, PAE, and PAF are created with composite flags by ORing
together every respective flags for monitoring. The composite
PAE
and
PAF flags are not precise.
相關(guān)PDF資料
PDF描述
72225LB25TFG 1K X 18 OTHER FIFO, 15 ns, PQFP64
723-611/019-000 15 A, MODULAR TERMINAL BLOCK, 1 ROW, 1 DECK
72346-001LF 20 CONTACT(S), FEMALE, STRAIGHT TELECOM AND DATACOM CONNECTOR, SOLDER, RECEPTACLE
72346-001 20 CONTACT(S), FEMALE, STRAIGHT TELECOM AND DATACOM CONNECTOR, SOLDER, RECEPTACLE
72346-002LF 20 CONTACT(S), FEMALE, STRAIGHT TELECOM AND DATACOM CONNECTOR, SOLDER, RECEPTACLE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
72235LB25JI 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 2K x 18 68-Pin PLCC 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC DUAL DEPTH/WIDTH UNI-DIR 2KX18 68PLCC - Rail/Tube
72235LB25JI8 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 2K x 18 68-Pin PLCC T/R 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC DUAL DEPTH/WIDTH UNI-DIR 2KX18 68PLCC - Tape and Reel
72235LB25PF 功能描述:先進(jìn)先出 RoHS:否 制造商:IDT 電路數(shù)量: 數(shù)據(jù)總線寬度:18 bit 總線定向:Unidirectional 存儲(chǔ)容量:4 Mbit 定時(shí)類型:Synchronous 組織:256 K x 18 最大時(shí)鐘頻率:100 MHz 訪問時(shí)間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝:
72235LB25PF8 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Sync Dual Depth/Width Uni-Dir 2K x 18 64-Pin TQFP T/R 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC DUAL DEPTH/WIDTH UNI-DIR 2KX18 64TQFP - Tape and Reel
72235LB25PFG 制造商:Integrated Device Technology Inc 功能描述:FIFO SYNC DUAL DEPTH/WIDTH UNI-DIR 2KX18 64TQFP - Bulk
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