DSP56F807VF80 Freescale Semiconductor, DSP56F807VF80 Datasheet - Page 29

• Manufacturer Part Number: DSP56F807VF80
• Description: IC DSP 80MHZ 60K FLASH 160-BGA
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxr

Specifications of DSP56F807VF80

• Core Processor: 56800
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 136KB (68K x 16)
• Program Memory Type: FLASH
• Ram Size: 6K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-MAPBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

3.4 External Clock Operation
The 56F807 system clock can be derived from an external crystal or an external system clock signal. To
generate a reference frequency using the internal oscillator, a reference crystal must be connected between
the EXTAL and XTAL pins.
3.4.1
The internal oscillator is also designed to interface with a parallel-resonant crystal resonator in the
frequency range specified for the external crystal in
oscillator circuit is shown. Follow the crystal supplier’s recommendations when selecting a crystal, since
crystal parameters determine the component values required to provide maximum stability and reliable
start-up. The crystal and associated components should be mounted as close as possible to the EXTAL
and XTAL pins to minimize output distortion and start-up stabilization time. The internal 56F80x
oscillator circuitry is designed to have no external load capacitors present. As shown in
external load capacitors should be used.
The 56F80x components internally are modeled as a parallel resonant oscillator circuit to provide a
capacitive load on each of the oscillator pins (XTAL and EXTAL) of 10pF to 13pF over temperature and
process variations. Using a typical value of internal capacitance on these pins of 12pF and a value of 3pF
Freescale Semiconductor
IFREN
XADR
ERASE
NVSTR
MAS1
YE=SE=OE=0
XE
Crystal Oscillator
Tnvs
Figure 3-6 Flash Mass Erase Cycle
56F807 Technical Data Technical Data, Rev. 16
Tme
Table
3-9. In
Figure 3-7
a recommended crystal
Tnvh1
External Clock Operation
Trcv
Figure 3-8
no
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