MCHC908MR8VFAE Freescale Semiconductor, MCHC908MR8VFAE Datasheet - Page 99
MCHC908MR8VFAE
Manufacturer Part Number
MCHC908MR8VFAE
Description
IC MCU 8K FLASH 8MHZ PWM 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MCHC908MR8VFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
16
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-LQFP
Processor Series
HC08MR
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
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05CE
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
Available stocks
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Price
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MCHC908MR8VFAE
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7.5 SIM Counter
7.5.1 SIM Counter During Power-On Reset
7.5.2 SIM Counter and Reset States
7.6 Exception Control
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
The SIM counter is used by the POR module to allow the oscillator time
to stabilize before enabling the internal bus (IBUS) clocks. The SIM
counter also serves as a prescaler for the COP module. The SIM counter
overflow supplies the clock for the COP module. The SIM counter is 13
bits long and is clocked by the falling edge of CGMXCLK.
The POR detects power applied to the MCU. At power-on, the POR
circuit asserts the signal PORRST. Once the SIM is initialized, it enables
the clock generation module (CGM) to drive the bus clock state machine.
External reset has no effect on the SIM counter. The SIM counter is
free-running after all reset states. See
Internal Sources
sequences.
Normal, sequential program execution can be changed in three different
ways:
1. Interrupts:
2. Reset
3. Break interrupts
a. Maskable hardware CPU interrupts
b. Non-maskable software interrupt instruction (SWI)
System Integration Module (SIM)
for counter control and internal reset recovery
7.4.2 Active Resets from
System Integration Module (SIM)
Technical Data
SIM Counter
99
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