PIC18F4220-I/ML Microchip Technology, PIC18F4220-I/ML Datasheet - Page 3

• Manufacturer Part Number: PIC18F4220-I/ML
• Description: IC MCU FLASH 2KX16 EEPROM 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4220-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, LVD, POR, PWM, WDT
• Number Of I /o: 36
• 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 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFN
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 512Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

3. Module: OSCTUN2 REGISTER
• If TUNSEL (OSCTUN2<7>) is clear – The
• If TUNSEL (OSCTUN2<7>) is set – The INTRC
REGISTER 2-2: OSCTUN2: INTRC OSCILLATOR
TUNING REGISTER values are modified. The
modified content for bit 7 is indicated in bold text and
the second sentence in bit 0 is deleted, and the
modified content is indicated in bold text in
Register 2-2.
REGISTER 2-2:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5-1
bit 0
INTOSC clock frequency can be adjusted by
the TUN5:TUN1 bits in OSCTUNE<5:1> without
affecting the INTRC frequency
(see Register 2-1:OSCTUNE).
clock frequency can be adjusted by the
TUN5:TUN1 bits in OSCTUN2<5:1> without
affecting the INTOSC frequency
(see Register 2-2: OSCTUN2).
TUNSEL
The bullet points in the second paragraph of
Section 2.6.3 “OSCTUN2 Register” on page 24
are modified. The modified values indicate that the
OSCTUNE register does not affect the INTRC
frequency. The modified values are indicated in
bold text in the following excerpt of the section:
R/W-0
TUNSEL: INTRC Frequency bit
1 = INTRC frequency adjusted according to the values of the OSCTUN2<5:1> bits
0 = INTRC not affected
Unimplemented: Read as ‘0’
TUN<5:1>: Frequency Tuning bits – Adjusts the frequency of INTRC when TUNSEL is set
011111 = Maximum frequency
•
•
000001
000000 = Center frequency. Oscillator module is running at the calibrated frequency
111111
•
•
100000 = Minimum frequency
TUN<0>: Placeholder. This bit has no effect on the INTRC frequency.
U-0
—
OSCTUN2: INTRC OSCILLATOR TUNING REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
TUN5
PIC18F2220/2320/4220/4320
R/W-0
TUN4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
TUN3
R/W-0
TUN2
x = Bit is unknown
R/W-0
TUN1
DS80334B-page 3
R/W-0
TUN0
bit 0