DSPIC30F2010-20I/MM Microchip Technology, DSPIC30F2010-20I/MM Datasheet - Page 127

• Manufacturer Part Number: DSPIC30F2010-20I/MM
• Description: IC DSPIC MCU/DSP 12K 28QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F2010-20I/MM

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 12KB (4K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-QFN
• Core Frequency: 40MHz
• Core Supply Voltage: 5.5V
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 20
• Flash Memory Size: 12KB
• Supply Voltage Range: 2.5V To 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F2010-20I/MMG; DSPIC30F201020IMM; DSPIC30F201020IMM

19.2.3
Enabling the LP oscillator is controlled with two
elements:
1.
2.
The LP oscillator is ON (even during Sleep mode) if
LPOSCEN = 1. The LP oscillator is the device clock if:
• COSC<1:0> = 00 (LP selected as main oscillator)
• LPOSCEN = 1
Keeping the LP oscillator ON at all times allows for a
fast switch to the 32 kHz system clock for lower power
operation. Returning to the faster main oscillator will
still require a start-up time
19.2.4
The PLL multiplies the clock that is generated by the
primary oscillator. The PLL is selectable to have either
gains of x4, x8, and x16. Input and output frequency
ranges are summarized in Table 19-3.
TABLE 19-3:
The PLL features a lock output which is asserted when
the PLL enters a phase locked state. Should the loop
fall out of lock (e.g., due to noise), the lock signal will be
rescinded. The state of this signal is reflected in the
read-only LOCK bit in the OSCCON register.
19.2.5
The FRC oscillator is a fast (7.37 MHz ±2% nominal)
internal RC oscillator. This oscillator is intended to
provide reasonable device operating speeds without
the use of an external crystal, ceramic resonator or RC
network.
The dsPIC30F operates from the FRC oscillator when
the current oscillator selection control bits in the
OSCCON register (OSCCON<13:12>) are set to ‘01’.
The four bit field specified by TUN<3:0> (OSCCON
<15:14> and OSCCON<11:10>) allows the user to tune
the internal fast RC oscillator (nominal 7.37MHz). The
user can tune the FRC oscillator within a range of -12%
(or -960 kHz) to +10.5% (or +840 kHz) in steps of
1.50% around the factory calibrated setting, see
Table 19-4.
© 2008 Microchip Technology Inc.
and
4 MHz-7.5 MHz
4 MHz-10 MHz
4 MHz-10 MHz
The current oscillator group bits COSC<1:0>.
The LPOSCEN bit (OSCCON register).
F
IN
LP OSCILLATOR CONTROL
PHASE LOCKED LOOP (PLL)
FAST RC OSCILLATOR (FRC)
PLL FREQUENCY RANGE
Multiplier
PLL
x16
x4
x8
64 MHz-120 MHz
16 MHz-40 MHz
32 MHz-80 MHz
F
OUT
TABLE 19-4:
19.2.6
The LPRC oscillator is a component of the Watchdog
Timer (WDT) and oscillates at a nominal frequency of
512 kHz. The LPRC oscillator is the clock source for
the Power-up Timer (PWRT) circuit, WDT, and clock
monitor circuits. It may also be used to provide a low
frequency clock source option for applications where
power consumption is critical and timing accuracy is
not required
The LPRC oscillator is always enabled at a Power-on
Reset because it is the clock source for the PWRT.
After the PWRT expires, the LPRC oscillator will remain
on if one of the following is true:
• The Fail-Safe Clock Monitor is enabled
• The WDT is enabled
• The LPRC oscillator is selected as the system
If one of the above conditions is not true, the LPRC will
shut-off after the PWRT expires.
clock via the COSC<1:0> control bits in the
OSCCON register
TUN<3:0>
Note 1: OSC2 pin function is determined by the
0111
0110
0101
0100
0011
0010
0001
0000
1111
1110
1101
1100
1011
1010
1001
1000
Bits
2: OSC1 pin cannot be used as an I/O pin
LOW-POWER RC OSCILLATOR
(LPRC)
Primary
(FPR<3:0>).
even if the secondary oscillator or an
internal clock source is selected at all
times.
Center Frequency (oscillator is
running at calibrated frequency)
dsPIC30F2010
FRC TUNING
Oscillator
FRC Frequency
+ 10.5%
+ 9.0%
+ 7.5%
+ 6.0%
+ 4.5%
+ 3.0%
+ 1.5%
- 1.5%
- 3.0%
- 4.5%
- 6.0%
- 7.5%
- 9.0%
- 10.5%
- 12.0%
DS70118H-page 127
mode
selection