MC68HC908GR8CFA Freescale Semiconductor, MC68HC908GR8CFA Datasheet - Page 62
MC68HC908GR8CFA
Manufacturer Part Number
MC68HC908GR8CFA
Description
IC MCU FLSH 8BIT8MHZ 7.5K32-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC68HC908GR8CFA
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Resets and Interrupts
4.3.2 External Reset
4.3.3 Internal Reset
4.3.3.1 Power-On Reset
Technical Data
62
A logic 0 applied to the RST pin for a time, t
reset. An external reset sets the PIN bit in the SIM reset status register.
Sources:
All internal reset sources pull the RST pin low for 32 CGMXCLK cycles
to allow resetting of external devices. The MCU is held in reset for an
additional 32 CGMXCLK cycles after releasing the RST pin.
A power-on reset is an internal reset caused by a positive transition on
the V
This distinguishes between a reset and a POR. The POR is not a brown-
out detector, low-voltage detector, or glitch detector.
CGMXCLK
INTERNAL
RST PIN
Freescale Semiconductor, Inc.
•
•
•
•
•
RESET
For More Information On This Product,
DD
Power-on reset (POR)
Computer operating properly (COP)
Low-power reset circuits
Illegal opcode
Illegal address
pin. V
Go to: www.freescale.com
DD
Resets and Interrupts
at the POR must go completely to 0 V to reset the MCU.
Figure 4-1. Internal Reset Timing
PULLED LOW BY MCU
32 CYCLES
IRL
32 CYCLES
, generates an external
MC68HC908GR8 — Rev 4.0
MOTOROLA
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