參數(shù)資料
型號: DS80CH11
英文描述: System Energy Manager
中文描述: 系統(tǒng)能量管理器
文件頁數(shù): 13/88頁
文件大小: 598K
代理商: DS80CH11
DS80CH11
011200 13/88
PIN
SYMBOL
DESCRIPTION
18
85
120
VCC
Digital Power Supply Input:
For microcontroller and associated functions.
101
VPFW
Power Fail Warning:
Output, active low. The VPFW pin signals an impending power
failure when VCC drops below VPFW voltage threshold.
44
VRH
A/D Positive Voltage Reference:
The VRH pin is the positive reference (upper voltage
limit) of the A/D Converter.
45
VRL
A/D Negative Voltage Reference:
The VRL pin is the negative reference (lower volt-
age limit) of the A/D Converter.
102
VRST
Power Fail Reset:
Output, active low. The VRST pin signals a “power not good” condi-
tion to the system when system VCC has dropped below the VRST voltage threshold.
118
119
XTAL1
XTAL2
μ
C Crystal Oscillator Inputs.
XTAL1 and XTAL2 provide support for parallel resonant,
AT cut crystals. XTAL1 acts also as an input if there is an external clock source in place
of a crystal. XTAL2 serves as the output of the crystal amplifier.
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