參數(shù)資料
型號(hào): AD664TD-UNI
廠商: ANALOG DEVICES INC
元件分類(lèi): DAC
英文描述: Monolithic 12-Bit Quad DAC
中文描述: QUAD, PARALLEL, WORD INPUT LOADING, 10 us SETTLING TIME, 12-BIT DAC, CDIP28
封裝: HERMETIC SEALED, CERAMIC, DIP-28
文件頁(yè)數(shù): 15/20頁(yè)
文件大小: 566K
代理商: AD664TD-UNI
AD664
REV. C
–15–
IBM PC* Interface
Figure 27 illustrates a simple interface between an IBM PC and
an AD664. The three least significant address bits are used to
select the Quad and DAC. The next two address bits are used
for
LS
and
MS
. In this scheme, a 12-bit input word requires
two load cycles, an 8-bit word and a 4-bit word. Another write
is required to transfer the word or words previously written to
the second rank. A 12-bit-wide word again requires at least two
read cycles; one for the 8 MSBs and four for the LSBs. The
page select signal produces a
CS
strobe for any address from
300H to 31FH.
Figure 26. AD664 to 8051 Interface
Figure 27. AD664 to IBM PC Interface
*IBM PC is a trademark
of International Business Machines Corp.
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