PIC18F44J50-I/PT Microchip Technology, PIC18F44J50-I/PT Datasheet - Page 15

• Manufacturer Part Number: PIC18F44J50-I/PT
• Description: IC PIC MCU FLASH 16K 2V 44-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F44J50-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): 2.15 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: EUSART, I2C, SPI
• Maximum Clock Frequency: 48 MHz
• Number Of Timers: 5
• Operating Supply Voltage: 2.25 V to 2.75 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
• Controller Family/series: PIC18
• No. Of I/o's: 22
• Ram Memory Size: 3776Byte
• Cpu Speed: 48MHz
• No. Of Timers: 5
• Embedded Interface Type: EUSART, I2C, SPI
• Rohs Compliant: Yes
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 48 MHz
• A/d Bit Size: 10 bit
• A/d Channels Available: 13
• Height: 1 mm
• Length: 10 mm
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.15 V
• Width: 10 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Microchip USB Device Firmware Framework User’s Guide
DS51679B-page 11
TABLE 1-3:
If _ISO is defined, then one synchronous/adaptive option ( _NS, _AS, _AD or _SY) and
one data/feedback option ( _DE, _FE or _IE) must also be defined. The default options
are _NS and _DE ( _ISO | _NS | _DE).
1.3.1.2.3
Rather than appearing as a simple string of text, the descriptor is formatted in a
particular data structure. The string descriptor array takes the format:
ROM struct
{
}sdxxx=
{
};
This structure provides a means for the C compiler to calculate the length of string
descriptor, sdxxx, where “xxx” is the string index number. The first two bytes of the
descriptor are the descriptor length and type. The remaining <text> are string texts
which must be in Unicode format. This is achieved by declaring each character as a
word type. The whole text string is declared as a word array with the number of char-
acters equal to <size>, which must be calculated manually by counting characters and
then entered into the array declaration.
For example, if the string is .USB., then the string descriptor should be (using index 02):
ROM struct
{
}sd002=
{
{’U’,’S’,’B’}
};
BYTE bLength;
BYTE bDscType;
WORD string[size];
sizeof(sdxxx),
USB_DESCRIPTOR_STRING,
{<text>}
BYTE bLength;
BYTE bDscType;
WORD string[3];
sizeof(sd002),
USB_DESCRIPTOR_STRING,
Option
_CTRL
_BULK
_ISO
_INT
_NS
_AS
_AD
_SY
_DE
_FE
_IE
String Descriptors
bmAttributes OPTIONS FOR ENDPOINT DESCRIPTOR
This endpoint is used for control transfers.
This endpoint is used for isochronous transfers.
This endpoint is used for bulk transfers.
This endpoint is used for interrupt transfers.
If _ISO is defined, the endpoint is not synchronized.
If _ISO is defined, the endpoint is asynchronous.
If _ISO is defined, the endpoint is adaptive.
If _ISO is defined, the endpoint is synchronous.
If _ISO is defined, the endpoint is a data endpoint.
If _ISO is defined, the endpoint is a feedback endpoint.
If _ISO is defined, the endpoint is an implicit feedback data endpoint.
Description
© 2008 Microchip Technology Inc.