DS80CH11 Maxim, DS80CH11 Datasheet - Page 13

• Manufacturer Part Number: DS80CH11
• Description: The system energy manager is a highly integrated microcontroller that provides several key features for systems including key scanning and control, battery and power management, as well as two 2-Wire serial I/O Ports
• Manufacturer: Maxim

PIN
120
101
102
118
119
18
85
44
45
SYMBOL
VPFW
XTAL1
XTAL2
VRST
VCC
VRH
VRL
Digital Power Supply Input: For microcontroller and associated functions.
Power Fail Warning: Output, active low. The VPFW pin signals an impending power
failure when VCC drops below VPFW voltage threshold.
A/D Positive Voltage Reference: The VRH pin is the positive reference (upper voltage
limit) of the A/D Converter.
A/D Negative Voltage Reference: The VRL pin is the negative reference (lower volt-
age limit) of the A/D Converter.
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.
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.
C Crystal Oscillator Inputs. XTAL1 and XTAL2 provide support for parallel resonant,
DESCRIPTION
011200 13/88
DS80CH11