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參數(shù)資料
| 型號： | MTC20136PQ-l1 |
| 廠商： | 意法半導體 |
| 英文描述： | ADSL TRANSCEIVER CONTROLLER |
| 中文描述： | 寬帶收發(fā)器控制器 |
| 文件頁數(shù)： | 14/25頁 |
| 文件大小： | 634K |
| 代理商： | MTC20136PQ-L1 |
MTC20136
14/25
Figure 3. Access to MTC20135, MTC20455
SDRAM
The SDRAM interface allows a glue-less interconnection of 1 SDRAM. Following features are provided for
SDRAM access.
– 16 bit databus and 12 bit address bus.
– control signals : S_nCS, S_nRAS, S_nCAS, S_nWE, S_DQM[1:0
Control signal timing
All SDRAM actions are triggered at the rising edge of its clock. Timing diagrams for a burst of four 16-bit
accesses to 16-bit SDRAM (Figure 3 and Figure 4) show the basic behavior of the control signals.
Figure 4. SDRAM read access (CAS latency = 3; Burst length = 4)
E_CLK
Ta
Tw
Td
Tr
Ti
Ta
Tw
Td
Tr
notCSi
ALE
E_D
Add 1
Read
Access
Write
Access
Add 2
Dout
EBI
Din
notRDYRCV
W/notR
EAact
EArw
EApre
S_clk
S_nCS
S_nRAS
S_nCAS
S_nWE
S_DQM[1:0]
S_A[11:0]
S_Q[15:0]
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MTC-20144TQ-1 | 制造商:Alcatel-Lucent 功能描述:ELECTRONIC COMPONENT |
| MTC-20144TQ-C | 制造商:Contact Us 功能描述:MODEM-SUPPORT CIRCUIT, PQFP64 |
| MTC20144-TQ-C2 | 制造商:STMicroelectronics 功能描述:ADSL AFE - Tape and Reel |
| MTC-20144TQ-I | 制造商:Alcatel-Lucent 功能描述:ELECTRONIC COMPONENT |
| MTC20144-TQ-I1 | 制造商:STMicroelectronics 功能描述:ADSL AFE - Tape and Reel |
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