MC68HC908SR12CB Freescale Semiconductor, MC68HC908SR12CB Datasheet - Page 127
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MC68HC908SR12CB
Manufacturer Part Number
MC68HC908SR12CB
Description
IC MCU 12K FLASH 8MHZ 42-SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC68HC908SR12CB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
29
Program Memory Size
12KB (12K 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 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908SR12CB
Manufacturer:
TI/NSC
Quantity:
340
Part Number:
MC68HC908SR12CB
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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8.5.6 CGM VCO Clock Output (CGMVCLK)
8.5.7 CGM Base Clock Output (CGMOUT)
8.5.8 CGM CPU Interrupt (CGMINT)
8.6 CGM Registers
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
CGMVCLK is the clock output from the VCO. This clock can be used by
the pulse width modulator (PWM) module to generate high frequency
PWM signals. This clock is also used by the analog module as a
reference for signal sampling.
CGMOUT is the clock output of the CGM. This signal goes to the SIM,
which generates the MCU clocks. CGMOUT is a 50 percent duty cycle
clock running at twice the bus frequency. CGMOUT is software
programmable to be either the oscillator output, CGMXCLK, divided by
two or the divided VCO clock, CGMPCLK, divided by two.
CGMINT is the interrupt signal generated by the PLL lock detector.
The following registers control and monitor operation of the CGM:
•
•
•
•
•
PLL control register (PCTL)
(See
PLL bandwidth control register (PBWC)
(See
PLL multiplier select registers (PMSH and PMSL)
(See
PLL VCO range select register (PMRS)
(See
PLL reference divider select register (PMDS)
(See
Clock Generator Module (CGM)
8.6.1 PLL Control
8.6.2 PLL Bandwidth Control
8.6.3 PLL Multiplier Select
8.6.4 PLL VCO Range Select
8.6.5 PLL Reference Divider Select
Register.)
Registers.)
Register.)
Register.)
Clock Generator Module (CGM)
Register.)
CGM Registers
Data Sheet
127
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