PIC18F2221-I/ML Microchip Technology, PIC18F2221-I/ML Datasheet - Page 262

• 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

PIC18F4321 FAMILY
REGISTER 23-8:
REGISTER 23-9:
DS39689E-page 260
bit 7-2
bit 1
bit 0
bit 7
bit 6
bit 5
bit 4-0
CONFIG6L: CONFIGURATION REGISTER 6 LOW (BYTE ADDRESS 30000Ah)
CONFIG6H: CONFIGURATION REGISTER 6 HIGH (BYTE ADDRESS 30000Bh)
bit 7
Unimplemented: Read as ‘0’
WRT1: Write Protection bit
1 = Block 1 not write-protected
0 = Block 1 write-protected
WRT0: Write Protection bit
1 = Block 0 not write-protected
0 = Block 0 write-protected
Legend:
R = Readable bit
-n = Value when device is unprogrammed
bit 7
WRTD: Data EEPROM Write Protection bit
1 = Data EEPROM not write-protected
0 = Data EEPROM write-protected
WRTB: Boot Block Write Protection bit
1 = Boot block not write-protected
0 = Boot block write-protected
WRTC: Configuration Register Write Protection bit
1 = Configuration registers (300000-3000FFh) not write-protected
0 = Configuration registers (300000-3000FFh) write-protected
Unimplemented: Read as ‘0’
Legend:
R = Readable bit
-n = Value when device is unprogrammed
WRTD
Note 1: See Figure 23-5 for variable block boundaries.
R/C-1
Note 1: This bit is read-only in normal execution mode; it can be written only in Program mode.
U-0
—
2: See Figure 23-5 for block boundaries.
WRTB
R/C-1
U-0
—
WRTC
C = Clearable bit
C = Clearable bit
(1)
(1)
R-1
Preliminary
U-0
—
(2)
(1)
(1)
(1)
(2)
U-0
—
U-0
—
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
(1)
U-0
—
U-0
—
U-0
U-0
—
© 2007 Microchip Technology Inc.
—
WRT1
R/C-1
U-0
—
WRT0
R/C-1
U-0
—
bit 0
bit 0