DSP56F801FA80 Freescale Semiconductor, DSP56F801FA80 Datasheet - Page 6

• Manufacturer Part Number: DSP56F801FA80
• Description: IC DSP 80MHZ 8K FLASH 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxr

Specifications of DSP56F801FA80

• Core Processor: 56800
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 11
• Program Memory Size: 20KB (10K x 16)
• Program Memory Type: FLASH
• Ram Size: 2K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: DSP56F801BU80; DSP56F801BU80

A key application-specific feature of the 56F801 is the inclusion of a Pulse Width Modulator (PWM)
module. This modules incorporates six complementary, individually programmable PWM signal outputs
to enhance motor control functionality. Complementary operation permits programmable dead-time
insertion, and separate top and bottom output polarity control. The up-counter value is programmable to
support a continuously variable PWM frequency. Both edge- and center-aligned synchronous pulse width
control (0% to 100% modulation) are supported. The device is capable of controlling most motor types:
ACIM (AC Induction Motors), both BDC and BLDC (Brush and Brushless DC motors), SRM and VRM
(Switched and Variable Reluctance Motors), and stepper motors. The PWMs incorporate fault protection
and cycle-by-cycle current limiting with sufficient output drive capability to directly drive standard
opto-isolators. A “smoke-inhibit”, write-once protection feature for key parameters is also included. The
PWM is double-buffered and includes interrupt control to permit integral reload rates to be programmable
from 1 to 16. The PWM modules provide a reference output to synchronize the Analog-to-Digital
Converters.
The 56F801 incorporates an 8 input, 12-bit Analog-to-Digital Converter (ADC). A full set of standard
programmable peripherals is provided that include a Serial Communications Interface (SCI), a Serial
Peripheral Interface (SPI), and two Quad Timers. Any of these interfaces can be used as General-Purpose
Input/Outputs (GPIO) if that function is not required. An on-chip relaxation oscillator provides flexibility
in the choice of either on-chip or externally supplied frequency reference for chip timing operations.
Application code is used to select which source is to be used.
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56F801 Technical Data, Rev. 17
Freescale Semiconductor