參數(shù)資料
型號(hào): IDT72235LB10TFI
廠商: Integrated Device Technology, Inc.
英文描述: CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
中文描述: 的CMOS SyncFIFOO 256 × 18,512 × 18,1024 × 18,2048 × 18和4096 × 18
文件頁數(shù): 7/16頁
文件大?。?/td> 181K
代理商: IDT72235LB10TFI
15
IDT72205LB/72215LB/72225LB/72235LB/72245LB CMOS SyncFIFO
256 x 18-BIT, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
Commercial And Industrial Temperature Ranges
DEPTH EXPANSION CONFIGURATION
(WITH PROGRAMMABLE FLAGS)
These devices can easily be adapted to applications requir-
ing more than 256/512/1,024/2,048/4,096 words of buffering.
Figure 21 shows Depth Expansion using three IDT72205LB/
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.
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
相關(guān)PDF資料
PDF描述
IDT72235LB15G CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72235LB15GB CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72235LB15J CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72235LB15JB CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72235LB15JI CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
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IDT72235LB15JI 功能描述:IC FIFO 2048X18 SYNC 15NS 68PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:90 系列:7200 功能:同步 存儲(chǔ)容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時(shí)間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF
IDT72235LB15JI8 功能描述:IC FIFO 2048X18 SYNC 15NS 68PLCC RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:80 系列:7200 功能:同步 存儲(chǔ)容量:18.4K(1K x 18) 數(shù)據(jù)速率:- 訪問時(shí)間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP(10x10) 包裝:托盤 其它名稱:72225LB10TF
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