PIC18LF44J50-I/PT Microchip Technology, PIC18LF44J50-I/PT Datasheet - Page 366
![IC PIC MCU FLASH 16K 2V 44-TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18LF44J50-I/PT
Manufacturer Part Number
PIC18LF44J50-I/PT
Description
IC PIC MCU FLASH 16K 2V 44-TQFP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18LF24J50-ISS.pdf
(554 pages)
3.PIC18LF24J50-ISS.pdf
(12 pages)
Specifications of PIC18LF44J50-I/PT
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-TQFP, 44-VQFP
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
34
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
31 KHz
Number Of Programmable I/os
22
Number Of Timers
5
Operating Supply Voltage
2 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM183022, DM183032, DV164136, MA180024
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 13 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF44J50-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F46J50 FAMILY
21.5
The USB module can generate multiple interrupt con-
ditions. To accommodate all of these interrupt sources,
the module is provided with its own interrupt logic
structure, similar to that of the microcontroller. USB
interrupts are enabled with one set of control registers
and trapped with a separate set of flag registers. All
sources are funneled into a single USB interrupt
request, USBIF (PIR2<4>), in the microcontroller’s
interrupt logic.
FIGURE 21-7:
FIGURE 21-8:
DS39931C-page 366
Note 1:
Differential Data
USB Interrupts
The control transfer shown here is only an example showing events that can occur for every transaction. Typical
control transfers will spread across multiple frames.
USB Reset
URSTIF
RESET
UEIR (Flag) and UEIE (Enable) Registers
CRC5EE
CRC5EF
Start-of-Frame (SOF)
BTOEE
BTOEF
BTSEF
BTSEE
Second Level USB Interrupts
PIDEE
PIDEF
CRC16EE
CRC16EF
USB INTERRUPT LOGIC FUNNEL
EXAMPLE OF A USB TRANSACTION AND INTERRUPT EVENTS
DFN8EF
DFN8EE
(USB Error Conditions)
SOFIF
SOF
SETUP
DATA
STATUS
Figure 21-7 provides the interrupt logic for the USB
module. There are two layers of interrupt registers in
the USB module. The top level consists of overall USB
status interrupts; these are enabled and flagged in the
UIE and UIR registers, respectively. The second level
consists of USB error conditions, which are enabled
and flagged in the UEIR and UEIE registers. An
interrupt condition in any of these triggers a USB Error
Interrupt Flag (UERRIF) in the top level.
Interrupts may be used to trap routine events in a USB
transaction. Figure 21-8 provides some common
events within a USB frame and their corresponding
interrupts.
SETUP Token
STALLIF
STALLIE
UERRIE
UERRIF
ACTVIE
URSTIE
OUT Token
ACTVIF
URSTIF
Control Transfer
From Host
From Host
From Host
IN Token
IDLEIF
IDLEIE
SOFIE
TRNIE
SOFIF
TRNIF
UIR (Flag) and UIE (Enable) Registers
Top Level USB Interrupts
(USB Status Interrupts)
Empty Data
Transaction
From Host
From Host
To Host
(1)
Data
Data
© 2009 Microchip Technology Inc.
From Host
To Host
To Host
ACK
ACK
ACK
SOF
1 ms Frame
USBIF
Transaction
Set TRNIF
Set TRNIF
Set TRNIF
Complete
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