PIC32MX460F256LT-80V/PT Microchip Technology, PIC32MX460F256LT-80V/PT Datasheet - Page 93

• Manufacturer Part Number: PIC32MX460F256LT-80V/PT
• Description: 256 KB Flash, 32 KB RAM, USB-OTG, 80 MHz, 10-Bit ADC, DMA 100 TQFP 12x12x1mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX460F256LT-80V/PT

• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 100-TQFP
• Core: MIPS
• Processor Series: PIC32MX4xx
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 80 MHz
• Data Ram Size: 32 KB
• Number Of Programmable I/os: 5
• Number Of Timers: 5
• Operating Supply Voltage: 2.3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Mounting Style: SMD/SMT
• Interface Type: USB, I2C, UART, RS-232, RS-485, SPI
• Maximum Operating Temperature: + 105 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.0
FIGURE 8-1:
© 2011 Microchip Technology Inc.
Notes: 1.
C1
C2
Note 1: This data sheet summarizes the features
SOSCO
Primary Oscillator (P
(3)
(3)
SOSCI
R
XTAL
2: Some registers and associated bits
S
OSCILLATOR
CONFIGURATION
2.
3.
4.
OSC2
(1)
OSC1
Secondary Oscillator (S
of the PIC32MX3XX/4XX family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to the “PIC32 Family
Reference
“Oscillator Configuration” (DS61112),
which is available from the Microchip web
site (www.microchip.com/PIC32).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
A series resistor, R
The internal feedback resistor, R
Refer to the “PIC32 Family Reference Manual” Section 6. “Oscillator
Configuration” (DS61112) for help determining the best oscillator
components.
PBCLK out is available on the OSC2 pin in certain clock modes.
(4)
R
F
(2)
OSC
8 MHz typical
Oscillator
PIC32MX3XX/4XX FAMILY CLOCK DIAGRAM
SOSCEN and FSOSCEN
LPRC
TUN<5:0>
Oscillator
)
FRC
Enable
Manual”
S
To Internal
Logic
, may be required for AT strip-cut crystals.
32.768 kHz
OSC
)
31.25 kHz typical
USB PLL
F
COSC<2:0>
, is typically in the range of 2 to 10 MΩ.
Section
UPLLIDIV<2:0>
FRCDIV<2:0>
div x
PLL Input Divider
FPLLIDIV<2:0>
Postscaler
4 MHz ≤ F
div x
UF
UF
6.
IN
in
IN
PLL Multiplier
PLLMULT<2:0>
F
= 4 MHz
IN
PLL x24
IN
div 16
PLL
≤ 5 MHz
PLLODIV<2:0>
PLL Output Divider
The PIC32MX oscillator system has the following
modules and features:
• A total of four external and internal oscillator
• On-chip PLL (phase-locked loop) with user-
• On-chip user-selectable divisor postscaler on
• Software-controllable switching between various
• A Fail-Safe Clock Monitor (FSCM) that detects
• Dedicated on-chip PLL for USB peripheral
div y
options as clock sources
selectable input divider, multiplier and output
divider to boost operating frequency on select
internal and external oscillator sources
select oscillator sources
clock sources
clock failure and permits safe application recovery
or shut down
div 2
XT, HS, EC
ECPLL, FRCPLL
XTPLL, HSPLL,
PIC32MX3XX/4XX
UPLLEN
UFRCEN
FRC
FRC/16
FRCDIV
LPRC
S
OSC
FSCMEN<1:0>
USB Clock (48 MHz)
Clock Control Logic
NOSC<2:0>
COSC<2:0>
Fail-Safe
Monitor
Clock
CPU and Select Peripherals
PBDIV<1:0>
Postscaler
OSWEN
div x
DS61143H-page 93
FSCM Event
Timer1, RTCC
WDT, PWRT
FSCM INT
Peripherals
SYSCLK
PBCLK