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DP8432V bảng dữ liệu(PDF) 31 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện DP8432V
Giải thích chi tiết về linh kiện  microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers
PDF  56 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP8432V bảng dữ liệu(HTML) 31 Page - National Semiconductor (TI)

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70 RAS and CAS Configuration Modes (Continued)
TLF11118 – 39
FIGURE 26a DRAM Array Setup for 4 Banks Using Address Pipelining (C6 C5 C4 e 1 1 1
or C6 C5 C4 e 0 1 0 (Also Allowing Error Scrubbing) during Programming)
TLF11118 – 40
FIGURE 26b DRAM Array Setup for Address Pipelining with 2 Banks (C6 C5 C4 e 1 0 1
or C6 C5 C4 e 0 0 1 (Also Allowing Error Scrubbing) during Programming)
74 ERROR SCRUBBING
In error scrubbing during refresh the user selects one two
or four RAS and CAS outputs per bank When performing
error detection and correction memory is always accessed
as words Since the CAS signals are not used to select
individual bytes the ECAS inputs can be tied low as shown
in
Figures 27a and 27b
TLF11118 – 41
FIGURE 27a DRAM Array Setup for 4 Banks Using Error Scrubbing (C6 C5 C4 e 0 1 0 during Programming)
TLF11118 – 42
FIGURE 27b DRAM Array Setup for Error Scrubbing with 2 Banks (C6 C5 C4 e 0 0 1 during Programming)
31



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