PIC18F452-E/PT Microchip Technology, PIC18F452-E/PT Datasheet - Page 202

• Manufacturer Part Number: PIC18F452-E/PT
• Description: IC MCU CMOS 40MHZ 16K FLSH44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F452-E/PT

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K 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: 34
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 34
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1.5KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 44TQFP
• 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: 34
• Interface Type: I2C/SPI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18FXX2
REGISTER 19-8:
REGISTER 19-9:
DS39564C-page 200
bit 7-4
bit 3
bit 2
bit 1
bit 0
bit 7
bit 6
bit 5
bit 4-0
CONFIGURATION REGISTER 6 LOW (CONFIG6L: BYTE ADDRESS 30000Ah)
CONFIGURATION REGISTER 6 HIGH (CONFIG6H: BYTE ADDRESS 30000Bh)
bit 7
Unimplemented: Read as ‘0’
WRT3: Write Protection bit
1 = Block 3 (006000-007FFFh) not write protected
0 = Block 3 (006000-007FFFh) write protected
WRT2: Write Protection bit
1 = Block 2 (004000-005FFFh) not write protected
0 = Block 2 (004000-005FFFh) write protected
WRT1: Write Protection bit
1 = Block 1 (002000-003FFFh) not write protected
0 = Block 1 (002000-003FFFh) write protected
WRT0: Write Protection bit
1 = Block 0 (000200h-001FFFh) not write protected
0 = Block 0 (000200h-001FFFh) write protected
Legend:
R = Readable bit
- n = Value when device is unprogrammed
Legend:
R = Readable bit
- n = Value when device is unprogrammed
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 (000000-0001FFh) not write protected
0 = Boot Block (000000-0001FFh) 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’
bit 7
WRTD
Note 1: Unimplemented in PIC18FX42 devices; maintain this bit set.
R/C-1
Note:
U-0
—
This bit is read only, and cannot be changed in User mode.
WRTB
R/C-1
U-0
—
C = Clearable bit
C =Clearable bit
WRTC
(1)
(1)
C-1
U-0
—
U-0
—
U-0
—
WRT3
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
U = Unimplemented bit, read as ‘0’
u = Unchanged from programmed state
R/C-1
U-0
—
(1)
WRT2
R/C-1
U-0
—
© 2006 Microchip Technology Inc.
(1)
WRT1
R/C-1
U-0
—
WRT0
R/C-1
U-0
—
bit 0
bit 0