參數(shù)資料
型號(hào): IDT72245LB15TFB
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(yè)數(shù): 15/16頁(yè)
文件大?。?/td> 181K
代理商: IDT72245LB15TFB
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
72IDT
FIRST LOAD (
)
Vcc
Vcc
72IDT
72IDT
2766 drw 23
RCLK
WCLK
RCLK
WCLK
RCLK
WCLK
Dn
Qn
Dn
Qn
Dn
Qn
相關(guān)PDF資料
PDF描述
IDT72245LB15TFI CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72245LB20G CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72245LB20GB CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72215LB CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
IDT72215LB10TF CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
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IDT72245LB15TFI 功能描述:IC FIFO 1024X18 SYNC 15NS 64QFP 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(wèn)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
IDT72245LB15TFI8 功能描述:IC FIFO 1024X18 SYNC 15NS 64QFP 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(wèn)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
IDT72245LB25J 功能描述:IC FIFO 1024X18 SYNC 25NS 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(wèn)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
IDT72245LB25J8 功能描述:IC FIFO 1024X18 SYNC 25NS 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(wèn)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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