PIC32MX440F512HT-80V/MR Microchip Technology, PIC32MX440F512HT-80V/MR Datasheet - Page 117

• Manufacturer Part Number: PIC32MX440F512HT-80V/MR
• Description: 512 KB Flash, 32 KB RAM, USB-OTG, 80 MHz, 10-Bit ADC, DMA 64 QFN 9x9x0.9mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512HT-80V/MR

• 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: 53
• Program Memory Size: 512KB (512K 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: 64-VFQFN Exposed Pad
• 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

FIGURE 19-4:
FIGURE 19-5:
© 2011 Microchip Technology Inc.
RIDLE bit
OERR bit
Note:
(RXISEL = 0x)
Note:
UxRX
RIDLE bit
UxRXIF
UxRX
This diagram shows 6 characters received without the user reading the input buffer. The 5th character
received is held in the Receive Shift register. An overrun error occurs at the start of the 6th character.
This timing diagram shows 2 characters received on the UxRX input.
Start
bit
Start
bit 0
bit
UART RECEPTION
UART RECEPTION WITH RECEIVE OVERRUN
Character 1
bit 0
bit 1
bit1
bit 7/8
Character 1, 2, 3, 4
Stored in Receive
FIFO
bit 7
Stop
bit
to UxRXREG
Character 1
Stop
bit
Start
bit
Start
bit
bit 0
Characters 2, 3, 4, 5
bit 0
bit 7/8 Stop
PIC32MX3XX/4XX
bit 7 Stop
bit
Character 2
to UxRXREG
bit
Start
bit
Character 5
Held in UxRSR
Character 6
bit 7/8
OERR Cleared by User
Stop
DS61143H-page 117
bit