參數(shù)資料
型號(hào)： MAX5499ETE+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 7/20頁(yè)
文件大?。?/td> 0K
描述： IC DIG POT 10BIT 16-TQFN-EP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
接片： 1024
電阻（歐姆）： 50k
電路數(shù)： 2
溫度系數(shù)： 標(biāo)準(zhǔn)值 35 ppm/°C
存儲(chǔ)器類型： 非易失
接口： 3 線串行（芯片選擇）
電源電壓： 2.5 V ~ 5.25 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-WQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 16-TQFN-EP（5x5）
包裝： 帶卷 (TR)
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
______________________________________________________________________________________
15
ACTION
WIPER
REGISTER 1
UPDATED
0
1
D9 D8 D7 D6
D5 D4 D3 D2
D1 D0
12
3
4
5
6
78
9
10
11 12 13
14
15
16
17
18
19 20 21 22
23
24
SCLK
DIN
XX
X
CS
C1 C0
RA1 RA0
ACTION
0
1
0
1
D9 D8 D7 D6
D5 D4 D3 D2
D1 D0
12
3
4
5
6
78
9
10
11 12 13
14
15
16
17
18
19 20 21 22
23
24
SCLK
DIN
XX
X
CS
C1 C0
RA1 RA0
WRITE NV
REGISTER 1
(DEVICE IS BUSY)
tBUSY
Figure 8. Write Wiper Register 1
Figure 9. Write NV Register 1
The “write wiper register” command writes data to the
volatile random access memory (RAM), leaving the NV
registers unchanged. When the device powers up, the
data stored in the NV registers transfers to the wiper
register, moving the wiper to the stored position. Figure
8 shows how to write data to wiper register 1.
Write NV Register
The “write NV register” command (C1, C0 = 01) stores
the position of the wiper to the NV registers for use at
power-up. Alternatively, the “copy wiper register to NV
register” command writes to the NV register. Writing to
the NV register does not affect the position of the
wipers. The operation takes up to 12ms (max) after CS
goes high to complete and no other operation should
be performed until completion. Figure 9 shows how to
write data to the NV register 1.
Copy Wiper Register to NV Register
The “copy wiper register to NV register” command (C1,
C0 = 10) stores the current position of the wiper to the
NV register for use at power-up. Figure 10 shows how
to copy data from wiper register 1 to NV register 1.
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