参数资料
型号: 71M6541F-DB
厂商: Maxim Integrated Products
文件页数: 102/166页
文件大小: 0K
描述: DEMO BOARD 71M6541F
标准包装: 1
系列: *
71M6541D/F/G and 71M6542F/G Data Sheet
V3P3SYS
71M654x
R 1
OPT_RX
100 pF
10 k ?
R 2
Phototransistor
V3P3SYS
LED
OPT_TX
Figure 41: Connection for Optical Components
4.12
Connecting the Reset Pin
Even though a functional meter does not necessarily need a reset switch, it is useful to have a reset
pushbutton for prototyping as shown in Figure 42 , left side. The RESET signal may be sourced from
V3P3SYS (functional in MSN mode only), V3P3D (MSN and BRN modes), or VBAT (all modes, if a
battery is present), or from a combination of these sources, depending on the application.
For a production meter, the RESET pin should be protected by the external components shown in
Figure 42 , right side. R1 should be in the range of 100 ? and mounted as closely as possible to the IC.
Since the 71M6541D/F/G and 71M6542F/G generate their own power-on reset, a reset button or circuitry, as
shown in Figure 42 , is only required for test units and prototypes.
VBAT/
V3P3D
R 2
V3P3D
71M654x
71M654x
1k ?
Reset
Switch
RESET
10kΩ
GNDD
0.1μF
R 1
GNDD
Figure 42: External Components for the RESET Pin: Push-Button (Left), Production Circuit (Right)
102
Rev 4
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