參數(shù)資料
型號: IDT72835LB10BGI
廠商: Integrated Device Technology, Inc.
英文描述: CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
中文描述: CMOS雙SyncFIFO雙256 × 18,雙512 × 18,雙1,024 × 18,雙2,048 × 18,雙4,096 × 18
文件頁數(shù): 24/26頁
文件大?。?/td> 334K
代理商: IDT72835LB10BGI
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72805LB/72815LB/72825LB/72835LB/72845LB CMOS Dual SyncFIFO
TM
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
24
Figure 30. Block Diagram of 8,192 x 18 Synchronous
FIFO Memory With Programmable Flags used in Depth Expansion Configuration
DEPTH EXPANSION CONFIGURATION —DAISY CHAIN TECHNIQUE
(WITH PROGRAMMABLE FLAGS)
These devices can easily be adapted to applications requiring more than
256/512/1,024/2,048/4,096 words of buffering. Figure 30 shows Depth
Expansion using one IDT72805LB/72815LB/72825LB/72835LB/72845LBs.
Maximumdepth is limted 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 30.
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 30.
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.
8.In Daisy Chain mode, the flag outputs are single register-buffered and
the partial flags are in asynchronous timng mode.
LOAD
WRITE CLOCK
WRITE ENABLE
READ CLOCK
READ ENABLE
OUTPUT ENABLE
DATA IN
DATA OUT
RESET
FIRST LOAD (
FL
)
Vcc
WXOA
WCLKA
WENA
RSA
LDA
WXIA
RXOA
RXIA
WXOB
WCLKB
RXOB
RXIB
IDT72845
FFA
/
IRA
PAFA
EFA
/
ORA
PAEA
PAFB
PAEB
EF
/
OR
PAE
FF
/
IR
PAF
3139 drw 30
RCLKB
RENB
OEB
QBn
WENB
RSB
DBn
FLA
RCLKA
RENA
OEA
DAn
QAn
LDB
FIFO A
4,096 x 18
FIFO B
4,096 x 18
FFA
/
IRA EFA
/
ORA
相關(guān)PDF資料
PDF描述
IDT72845LB10BGI CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
IDT72805LB CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
IDT72805LB10PF CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
IDT72805LB10PFI CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
IDT72805LB15BG CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18, and DUAL 4,096 x 18
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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IDT72835LB15PF 功能描述:IC FIFO SYNC DL 2048X18 128TQFP 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 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間: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
IDT72835LB15PF8 功能描述:IC FIFO SYNC DL 2048X18 128TQFP 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 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間: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
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