PIC24FJ256GB206-I/MR Microchip Technology Inc., PIC24FJ256GB206-I/MR Datasheet - Page 145

• Manufacturer Part Number: PIC24FJ256GB206-I/MR
• Description: 16-bit, 256KB Flash, 96K RAM, USB, 64 QFN 9x9x0.9mm TUBE
• Manufacturer: Microchip Technology Inc.

Specifications of PIC24FJ256GB206-I/MR

• A/d Inputs: 16 Channel, 10-bit
• Comparators: 3
• Cpu Speed: 16 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 52
• Interface: I2C/SPI/UART/USART/USB
• Memory Type: Flash
• Number Of Bits: 16
• Package Type: 64-pin QFN
• Programmable Memory: 256K Bytes
• Ram Size: 98K Bytes
• Speed: 32 MHz
• Temperature Range: –40 to 85 °C
• Timers: 5-16-bit
• Voltage, Range: 2.2-3.6 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 8-2:
8.5.1
The system clock is generated from the 96 MHz branch
using a configurable postscaler/divider to generate a
range of frequencies for the system clock multiplexer.
The output of the multiplexer is further passed through
a fixed divide-by-3 divider and the final output is used
TABLE 8-2:
 2010 Microchip Technology Inc.
Note 1:
(4 MHz or
8 MHz)
Input from
POSC
Input from
FRC
FNOSC<2:0>
These options are not compatible with USB operation. They may be used whenever the PLL branch is
selected and the USB module is disabled.
SYSTEM CLOCK GENERATION
SYSTEM CLOCK OPTIONS FOR 96 MHz PLL BLOCK
MCU Clock Division
(CPDIV<1:0>)
96 MHz PLL BLOCK
None (00)
2 (01)
4 (10)
8 (11)
 12
 8
 6
 5
 4
 3
 2
 1
PLLDIV<2:0>
111
110
101
100
011
010
001
000
4 MHz
PIC24FJ256GB210 FAMILY
96 MHz
PLL
as the system clock. Figure 8-2 shows this logic in the
system clock sub-block. Since the source is a 96 MHz
signal, the possible system clock frequencies are listed
in Table 8-2. The available system clock options are
always the same, regardless of the setting of the
PLLDIV Configuration bits.
 2
 3
32 MHz
(Instruction Rate in MIPS)
System Clock Frequency
32 MHz (16)
8 MHz (4)
4 MHz (2)
16 MHz (8)
 8
 4
 2
 1
CPDIV<1:0>
(1)
(1)
11
10
01
00
DS39975A-page 145
PLL Output
for System Clock
48 MHz Clock
for USB Module