MC68HC908JK8CP Freescale Semiconductor, MC68HC908JK8CP Datasheet - Page 177

• Manufacturer Part Number: MC68HC908JK8CP
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908JK8CP

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SCI
• Program Memory Type: Flash
• Program Memory Size: 8KB
• Total Internal Ram Size: 256Byte
• # I/os (max): 15
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 13-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 20
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

Chapter 15
Low Voltage Inhibit (LVI)
15.1 Introduction
This section describes the low-voltage inhibit module (LVI), which monitors the voltage on the V
and generates a reset when the V
15.2 Features
Features of the LVI module include the following:
15.3 Functional Description
Figure 15-1
contains a bandgap reference circuit and comparator. Setting LVI disable bit (LVID) disables the LVI to
monitor V
LVI module should take actions.
The LVI module generates one output signal:
LVI Reset — an reset signal will be generated to reset the CPU when V
point.
Freescale Semiconductor
•
•
Selectable LVI trip voltage
Selectable LVI circuit disable
DD
shows the structure of the LVI module. The LVI is enabled after a reset. The LVI module
voltage. The LVI trip voltage selection bits (LVIT1, LVIT0) determine at which V
LVIT1
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
DETECTOR
LOW V
V
DD
DD
LVIT0
V
V
DD
DD
Figure 15-1. LVI Module Block Diagram
> LVI
< LVI
DD
TRIP
TRIP
voltage falls to the LVI trip (LVI
= 0
= 1
LVID
TRIP
DD
) voltage.
drops to below the set trip
LVI RESET
DD
level the
DD
pin
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