DS80CH11 Maxim, DS80CH11 Datasheet - Page 18

• 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

2.2 PIN CHARACTERISTICS (cont’d)
PIN STATE DESCRIPTIONS
High–Z
Enabled
Unchanged
NOTES:
1. As shown above, the original port pins P1.7–P1.2 have been modified to open–drain instead of having “Internal”
2. This signal is independently powered from the HVCC on pin 68. As a result, the state of the reset pin and the power
3. VRST and VPFW reflects the state of VCC with respect to the power–fail reset and power–fail warning trip points,
DS80CH11
011200 18/88
PIN
101
102
118
119
pull–up resistors.
down mode have no effect on its operation.
respectively, and is unaffected by the RST pin and power down mode state.
44
45
NAME
VPFW
XTAL1
XTAL2
VRST
VRH
VRL
High Impedance
Power applied; electrically functioning input
Previous state not affected
POWER DOWN
MODE STATE
(note 3)
(note 3)
H
–
–
–
I/O BUFFER TYPE
O
O
O
–
–
I
(note 3)
(note 3)
RESET
STATE
–
–
–
–