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PT5048C资料 | |
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PT5048C PDF Download |
File Size : 116 KB
Manufacturer:TI Description:1. By clocking each of the 256 row addresses (A0 through A7) with RAS at least once every 4 ms. Any read, write, read-modify-write or RAS-only cycle refreshes the ad- dressed row. 2. Using a CAS-before-RAS refresh cycle. CAS-before-RAS refresh is activated by the falling edge of RAS, while holding CAS LOW. In CAS-before-RAS refresh cycle, an internal 8-bit counter provides the row addresses and the external address inputs are ignored. CAS-before-RAS is a refresh-only mode and no data access or device selection is allowed. Thus, the output remains in the High-Z state during the cycle. |
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1PCS | 100PCS | 1K | 10K | ||
价 格 | |||||
型 号:PT5048C 厂 家:TI 封 装: 批 号:07+ 数 量:989 说 明:原装正品 |
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运 费:所有运费均有我司承担 所在地:深圳 新旧程度: |
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