PIC18F2221-I/ML Microchip Technology, PIC18F2221-I/ML Datasheet - Page 218

IC PIC MCU FLASH 2KX16 28QFN

PIC18F2221-I/ML

Manufacturer Part Number
PIC18F2221-I/ML
Description
IC PIC MCU FLASH 2KX16 28QFN
Manufacturer
Microchip Technology
Series
PIC® 18Fr

Specifications of PIC18F2221-I/ML

Core Size
8-Bit
Program Memory Size
4KB (2K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Controller Family/series
PIC18
No. Of I/o's
25
Eeprom Memory Size
256Byte
Ram Memory Size
512Byte
Cpu Speed
40MHz
No. Of Timers
4
Package
28QFN EP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
25
Interface Type
I2C/SPI/USART
On-chip Adc
10-chx10-bit
Number Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT28QFN4 - SOCKET TRANS ICE 28QFN W/CABLEAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2221-I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC18F4321 FAMILY
FIGURE 18-3:
FIGURE 18-4:
FIGURE 18-5:
DS39689E-page 216
Note: This timing diagram shows two consecutive transmissions.
(Interrupt Reg. Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Write to TXREG
(Transmit Buffer
Reg. Empty Flag)
(Transmit Shift
Write to TXREG
(Transmit Shift
BRG Output
(Shift Clock)
BRG Output
(Shift Clock)
TRMT bit
TX (pin)
TXIF bit
TRMT bit
BRG16
TX (pin)
TXIF bit
TXIE
Interrupt
1 T
EUSART TRANSMIT BLOCK DIAGRAM
ASYNCHRONOUS TRANSMISSION, TXCKP = 0 (TX NOT INVERTED)
ASYNCHRONOUS TRANSMISSION (BACK TO BACK),
TXCKP = 0 (TX NOT INVERTED)
SPBRGH
Baud Rate Generator
CY
TXIF
Word 1
Transmit Shift Reg
TXEN
Transmit Shift Reg.
Word 1
Word 1
Word 1
Baud Rate CLK
1 T
SPBRG
CY
Start bit
Start bit
Word 2
MSb
(8)
1 T
CY
bit 0
bit 0
Preliminary
TXREG Register
TSR Register
TX9D
• • •
bit 1
TX9
8
Data Bus
Word 1
bit 1
Word 1
LSb
0
TRMT
bit 7/8
bit 7/8
and Control
Pin Buffer
TXCKP
Word 2
Transmit Shift Reg.
Stop bit
© 2007 Microchip Technology Inc.
SPEN
Stop bit
Start bit
Word 2
TX pin
bit 0

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