PIC24FJ256GB106-I/MR Microchip Technology, PIC24FJ256GB106-I/MR Datasheet - Page 9

• Manufacturer Part Number: PIC24FJ256GB106-I/MR
• Description: IC, 16BIT MCU, PIC24F, 32MHZ, QFN-64
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ256GB106-I/MR

• Controller Family/series: PIC24
• No. Of I/o's: 51
• Ram Memory Size: 16KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Core Size: 16 Bit
• Program Memory Size: 256KB
• Peripherals: ADC, Comparator, PWM, RTC, Timer
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART, USB OTG
• Number Of I /o: 51
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 52
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DM240011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

28. Module: Oscillator (LPRC)
29. Module: Oscillator (Two-Speed Start-up)
 2010 Microchip Technology Inc.
The LPRC may not automatically restart follow-
ing BOR events (i.e., when supply voltage sags
to between the BOR and POR thresholds, then
returns to above the BOR level). When this
happens, systems that use the LPRC clock may
not work. This includes the PLL, Two-Speed
Start-up, Fail-Safe Clock Monitor and the WDT.
Work around
For PLL issues: select a non-PLL Clock mode
as the initial start-up mode, using the FNOSC
Configuration bits (CW2<10:8>). After the appli-
cation has initialized, switch to a PLL Clock
mode in software using the NOSC bits
(OSCCON<10:8>). Allow 10 s to elapse
between application start-up and a software
clock switch.
For WDT issues: disable the WDT by program-
ming the FWDTEN bit (CW1<7>). After the
application has initialized, enable the WDT in
software
(RCON<5>). Allow 10 s to elapse between
application start-up and setting SWDTEN.
Affected Silicon Revisions
Two-Speed Start-up is not functional. Leaving
the IESO Configuration bit in its default state
(Two-Speed Start-up enabled) may result in
unpredictable operation.
Work around
None. Always program the IESO Configuration
bit to disable the feature (CW2<15> = 0).
Affected Silicon Revisions
A3
A3
X
X
A5
A5
X
by
setting
the
SWDTEN
PIC24FJ256GB110 FAMILY
bit
30. Module: Output Compare
31. Module: Interrupts (INTx)
In PWM mode, the output compare module may
miss a compare event when the current duty cycle
register (OCxRS) value is 0000h (0% duty cycle)
and the OCxRS register is updated with a value of
0001h. The compare event is only missed the first
time a value of 0001h is written to OCxRS and the
PWM output remains low for one PWM period.
Subsequent PWM high and low times occur as
expected.
Work around
If the current OCxRS register value is 0000h, avoid
writing a value of 0001h to OCxRS. Instead, write
a value of 0002h. In this case, however, the duty
cycle will be slightly different from the desired
value.
Affected Silicon Revisions
Writing to the INTCON2 register may cause an
external interrupt event (inputs on INT0 through
INT4) to be missed. This only happens when the
interrupt event and the write event occur during
the same clock cycle.
Work around
If this cannot be avoided, write the data intended
for INTCON2 to any other register in the inter-
rupt block of the SFR (addresses, 0080h to
00E0h); then write the data to INTCON2.
Be certain to write the data to a register not
being actively used by the application, or to any
of the interrupt flag registers, in order to avoid
spurious interrupts. For example, if the inter-
rupts controlled by IEC5 are not being used in
the application, the code sequence would be:
IEC5 = 0x1E;
INTCON2 = 0x1E;
IEC5 = 0;
It is the user’s responsibility to determine an
appropriate register for the particular applica-
tion.
Affected Silicon Revisions
A3
A3
X
X
A5
A5
X
X
DS80369K-page 9