MCHC908GR8CFAE Freescale Semiconductor, MCHC908GR8CFAE Datasheet - Page 278

• Manufacturer Part Number: MCHC908GR8CFAE
• Description: IC MCU FLSH 8BIT8MHZ 7.5K32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908GR8CFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 21
• Ram Memory Size: 384Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08G
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8.2 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

System Integration Module (SIM)
19.4.2.1 Power-On Reset
Technical Data
278
then follows the sequence from the falling edge of RST shown in
19-5.
The COP reset is asynchronous to the bus clock.
The active reset feature allows the part to issue a reset to peripherals
and other chips within a system built around the MCU.
When power is first applied to the MCU, the power-on reset module
(POR) generates a pulse to indicate that power-on has occurred. The
external reset pin (RST) is held low while the SIM counter counts out
4096 CGMXCLK cycles. Sixty-four CGMXCLK cycles later, the CPU and
memories are released from reset to allow the reset vector sequence to
occur.
At power-on, these events occur:
CGMXCLK
Freescale Semiconductor, Inc.
•
IRST
RST
For More Information On This Product,
IAB
A POR pulse is generated.
System Integration Module (SIM)
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ILLEGAL ADDRESS RST
Figure 19-6. Sources of Internal Reset
ILLEGAL OPCODE RST
RST PULLED LOW BY MCU
Figure 19-5. Internal Reset Timing
COPRST
32 CYCLES
POR
LVI
INTERNAL RESET
32 CYCLES
MC68HC908GR8 — Rev 4.0
VECTOR HIGH
MOTOROLA
Figure