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參數(shù)資料
| 型號(hào)： | IRD-L67132L-70 |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | SRAM |
| 英文描述： | 2K X 8 DUAL-PORT SRAM, 70 ns, PQFP64 |
| 封裝： | VQFP-64 |
| 文件頁(yè)數(shù)： | 9/14頁(yè) |
| 文件大?。?/td> | 178K |
| 代理商： | IRD-L67132L-70 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)當(dāng)前第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
L67132/L67142
Rev. D (19 Fev. 97)
4
MATRA MHS
Truth Table
Table 1 : Non Contention Read/Write Control(4)
LEFT OR RIGHT PORT(1)
FUNCTION
R/W
CS
OE
D0–7
FUNCTION
X
H
X
Z
Port Disabled and in Power Down Mode. ICCSB or ICCSB1
L
X
DATAIN
Data on Port Written into memory(2)
H
L
DATAOUT
Data in Memory Output on Port(3)
H
L
H
Z
High Impedance Outputs
Notes :
1. AOL – A10L ≠ A0R – A10R.
2. If BUSY = L, data is not written.
3. If BUSY = L, data may not be valid, see tWDD and tDDD timing.
4. H = HIGH, L = LOW, X = DON’T CARE, Z = HIGH IMPEDANCE.
Table 2 : Arbitration(5)
LEFT PORT
RIGHT PORT
FLAGS
FUNCTION
CSL
A0L – A10L
CSR
A0L – A10R
BUSYL
BUSYR
FUNCTION
H
X
H
X
H
No Contention
L
Any
H
X
H
No Contention
H
X
L
Any
H
No Contention
L
≠ A0R – A10R
L
≠ A0L – A10L
H
No Contention
ADDRESS ARBITRATION WITH CE LOW BEFORE ADDRESS MATCH
L
LV5R
L
LV5R
H
L
L–Port Wins
L
RV5L
L
RV5L
L
H
R–Port Wins
L
Same
L
Same
H
L
Arbitration Resolved
L
Same
L
Same
L
H
Arbitration Resolved
CS ARBITRATION WITH ADDRESS MATCH BEFORE CS
LL5R
= A0R – A10R
LL5R
= A0L – A10L
H
L
L–Port Wins
RL5L
= A0R – A10R
RL5L
= A0L – A10L
L
H
R–Port Wins
LW5R
= A0R – A10R
LW5R
= A0L – A10L
H
L
Arbitration Resolved
LW5R
= A0R – A10R
LW5R
= A0L – A10L
L
H
Arbitration Resolved
Notes :
5. X = DON’T CARE, L = LOW, H = HIGH.
LV5R = Left Address Valid
≥ 5 ns before right address.
RV5L = Right address Valid
≥ 5 ns before left address.
Same = Left and Right Addresses match within 5 ns of each other.
LL5R = Left CS = LOW
≥ 5 ns before Right CS.
RL5L = Right CS = LOW
≥ 5 ns before left CS.
LW5R = Left and Right CS = LOW within 5 ns of each other.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRD-LPC1768-DEV | 功能描述:開(kāi)發(fā)板和工具包 - ARM Ind. Ref. Design LPC1768 Dev Kit V1 RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評(píng)估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V |
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| IRE-2.0 | 制造商:Speakercraft 功能描述:Standard Dual IR Emitter |
| IRE-3.0 | 制造商:Speakercraft 功能描述:Standard IR Emitter with Visible LED |
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