PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 338

• Manufacturer Part Number: PIC18F85K22-I/PT
• Description: IC, 8BIT MCU, PIC18F, 64MHZ, TQFP-80
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F85K22-I/PT

• Controller Family/series: PIC18
• No. Of I/o's: 69
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Core Size: 8 Bit
• Program Memory Size: 32KB
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F87K22 FAMILY
FIGURE 22-3:
FIGURE 22-4:
FIGURE 22-5:
DS39960D-page 338
Note: This timing diagram shows two consecutive transmissions.
(Interrupt Reg. Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Write to TXREGx
(Transmit Buffer
Reg. Empty Flag)
Write to TXREGx
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
BRG Output
(Shift Clock)
TRMT bit
TXx (pin)
TXxIF bit
TRMT bit
TXx (pin)
TXxIF bit
BRG16
TXxIE
Interrupt
1 T
EUSART TRANSMIT BLOCK DIAGRAM
ASYNCHRONOUS TRANSMISSION
ASYNCHRONOUS TRANSMISSION (BACK-TO-BACK)
SPBRGHx
CY
Baud Rate Generator
Word 1
Transmit Shift Reg
Transmit Shift Reg.
Word 1
TXxIF
Word 1
TXEN
Word 1
1 T
Baud Rate CLK
SPBRGx
CY
Start bit
Start bit
Word 2
MSb
(8)
1 T
CY
bit 0
bit 0
TXREGx Register
TSR Register
TX9D

bit 1
TX9
8
Data Bus
Word 1
bit 1
Word 1
LSb
0
TRMT
bit 7/8
and Control
 2009-2011 Microchip Technology Inc.
bit 7/8
Pin Buffer
Word 2
Transmit Shift Reg.
SPEN
Stop bit
Stop bit
Start bit
TXx Pin
Word 2
bit 0