参数资料
型号: 71M6542G-IGT/F
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP100
封装: LEAD FREE, LQFP-100
文件页数: 123/165页
文件大小: 2208K
代理商: 71M6542G-IGT/F
60
2008–2011 Teridian Semiconductor Corporation
v1.1
Value in DIO_Rn[2:0]
Resource Selected for SEGDIOn or PB Pin
5
Low priority I/O interrupt (INT1)
Note:
Resources are selectable only on SEGDIO2 through SEGDIO11 and the
PB pin. See Table 48 (71M6541D/F) and Table 52 (71M6542F).
When driving LEDs, relay coils etc., the DIO pins should sink the current into GNDD (as
shown in Figure 20, right), not source it from V3P3D (as shown in Figure 20, left). This is due
to the resistance of the internal switch that connects V3P3D to either V3P3SYS or VBAT. See
Sourcing current in or out of DIO pins other than those dedicated for wake functions, for
example with pull-up or pull-down resistors, must be avoided. Violating this rule leads to
increased quiescent current in sleep and LCD modes.
Figure 20: Connecting an External Load to DIO Pins
V3P3SYS
VBAT
V3P3D
DIO
GNDD
MISSION
BROWNOUT
LCD/SLEEP
LOW
HIGH
HIGH-Z
V3P3SYS
VBAT
V3P3D
DIO
GNDD
MISSION
BROWNOUT
LCD/SLEEP
LOW
HIGH
HIGH-Z
Not recommended
Recommended
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