MC908GP32CPE Freescale Semiconductor, MC908GP32CPE Datasheet - Page 111
MC908GP32CPE
Manufacturer Part Number
MC908GP32CPE
Description
IC MCU 8MHZ 32K FLASH 40-DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GP32CFBE.pdf
(266 pages)
Specifications of MC908GP32CPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
HC08GP
Core
HC08
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
33
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Manufacturer
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Price
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Part Number:
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Chapter 11
Low-Voltage Inhibit (LVI)
11.1 Introduction
This section describes the low-voltage inhibit (LVI) module, which monitors the voltage on the V
and can force a reset when the V
11.2 Features
Features of the LVI module include:
11.3 Functional Description
Figure 11-1
contains a bandgap reference circuit and comparator. Clearing the LVI power disable bit, LVIPWRD,
enables the LVI to monitor V
module to generate a reset when V
bit, LVISTOP, enables the LVI to operate in stop mode. Setting the LVI 5-V or 3-V trip point bit, LVI5OR3,
enables the trip point voltage, V
enables the trip point voltage, V
in
Freescale Semiconductor
Chapter 19 Electrical
•
•
•
Programmable LVI reset
Selectable LVI trip voltage
Programmable stop mode operation
shows the structure of the LVI module. The LVI is enabled out of reset. The LVI module
After a power-on reset (POR) the LVI’s default mode of operation is 3 V. If
a 5-V system is used, the user must set the LVI5OR3 bit to raise the trip
point to 5-V operation. Note that this must be done after every power-on
reset since the default will revert back to 3-V mode after each power-on
reset. If the V
3-V mode trip voltage when POR is released, the part will operate because
V
taken to ensure that V
released.
If the user requires 5-V mode and sets the LVI5OR3 bit after a power-on
reset while the V
will immediately go into reset. The LVI in this case will hold the part in reset
until either V
release reset or V
the power-on reset and reset the trip point to 3-V operation.
TRIPF
defaults to 3-V mode after a POR. So, in a 5-V system care must be
Specifications.
DD
DD
DD
goes above the rising 5-V trip point, V
TRIPF
DD
supply is below the 5-V mode trip voltage but above the
voltage. Clearing the LVI reset disable bit, LVIRSTD, enables the LVI
TRIPF
DD
DD
supply is not above the V
DD
MC68HC908GP32 Data Sheet, Rev. 10
decreases to approximately 0 V which will re-trigger
, to be configured for 3-V operation. The actual trip points are shown
voltage falls below the LVI trip falling voltage, V
, to be configured for 5-V operation. Clearing the LVI5OR3 bit
DD
falls below a voltage, V
is above the 5-V mode trip voltage after POR is
NOTE
NOTE
TRIPR
TRIPF
for 5-V mode, the MCU
. Setting the LVI enable in stop mode
TRIPR
, which will
TRIPF
.
DD
pin
111
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