參數(shù)資料
型號: MAX5591BEUI
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: DAC
英文描述: Buffered, Fast-Settling, Octal, 12/10/8-Bit, Voltage-Output DACs
中文描述: PARALLEL, WORD INPUT LOADING, 3 us SETTLING TIME, 12-BIT DAC, PDSO28
封裝: 4.40 MM, MO-153AE, TSSOP-28
文件頁數(shù): 26/33頁
文件大小: 1114K
代理商: MAX5591BEUI
M
Buffered, Fast-Settling, Octal, 12/10/8-Bit,
Voltage-Output DACs
26
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Table 20. UPIO Programming Example
DATA
DIN
CONTROL BITS
0
DATA BITS
1
1
1
1
0
1
1
0
0
0
0
0
0
X
X
X = Don’t care.
Table 21. UPIO Read Command
DATA
DIN
DOUTRB
CONTROL BITS
0
X
DATA BITS
X
1
X
1
X
1
X
0
X
1
X
1
X
1
X
X
X
X
X
X
X
X
U P 3- 2 U P 2- 2 U P 1- 2 U P 0- 2 U P 3- 1 U P 2- 1 U P 1- 1 U P 0- 1
X = Don’t care.
UPIO Bits (UPSL1, UPSL2, UP0–UP3)
The MAX5590–MAX5595 provide two user-programma-
ble input/output (UPIO) ports: UPIO1 and UPIO2. These
ports have 15 possible configurations, as shown in
Table 22. UPIO1 and UPIO2 can be programmed inde-
pendently or simultaneously by writing to the UPSL1,
UPSL2, and UP0–UP3 bits (Table 18).
Table 19 shows how UPIO1 and UPIO2 are selected for
configuration. The UP0–UP3 bits select the desired
functions for UPIO1 and/or UPIO2 (Table 22).
UPIO Programming Example:
To set only UPIO1 as
LDAC
and leave UPIO2
unchanged, use the command in Table 20.
The UPIO selection and configuration bits can be read
back from the MAX5590–MAX5595 when UPIO1 or
UPIO2 is configured as a DOUTRB output. Table 21
shows the read-back data format for the UPIO bits.
Writing the command in Table 21 initiates a read opera-
tion of the UPIO bits. The data is clocked out starting on
the ninth clock cycle of the sequence. Bits UP3-2
through UP0-2 provide the UP3–UP0 configuration bits
for UPIO2 (Table 22), and bits UP3-1 through UP0-1
provide the UP3–UP0 configuration bits for UPIO1.
Table 18. UPIO Write Command
DATA
DIN
CONTROL BITS
0
DATA BITS
1
1
1
0
1
1
0
U P S L2 U P S L1
UP3
UP2
UP1
UP0
X
X
X = Don’t care.
Table 19. UPIO Selection Bits (UPSL1 and UPSL2)
UPSL2
0
0
1
1
UPSL1
0
1
0
1
UPIO PORT SELECTED
None selected
UPIO1 selected
UPIO2 selected
Both UPIO1 and UPIO2 selected
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