PIC18F2221-E/SO Microchip Technology, PIC18F2221-E/SO Datasheet - Page 276

• Manufacturer Part Number: PIC18F2221-E/SO
• Description: 4KB, Flash, 512bytes-RAM, 25I/O, 8-bit Family,nanoWatt 28 SOIC .300in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2221-E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 4KB (2K x 16)
• 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 ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2221/2321/4221/4321 FAMILY
FIGURE 24-7:
FIGURE 24-8:
DS39689F-page 276
TBLPTR = 0008FFh
Results: All table reads from external blocks to Blockn are disabled whenever EBTRn = 0.
Note 1: See Figure 24-5 for block boundaries.
Results: Table reads permitted within Blockn, even when EBTRBn = 0.
Note 1: See Figure 24-5 for block boundaries.
TBLPTR = 0008FFh
Register Values
Register Values
PC = 003FFEh
PC = 007FFEh
TABLAT register returns a value of ‘0’.
TABLAT register returns the value of the data at the location TBLPTR.
EXTERNAL BLOCK TABLE READ (EBTRn) DISALLOWED
EXTERNAL BLOCK TABLE READ (EBTRn) ALLOWED
Program Memory
Program Memory
Boot Block
Boot Block
Block 0
TBLRD*
Block 1
Block 0
Block 1
TBLRD*
(1)
(1)
Configuration Bit Settings
Configuration Bit Settings
WRTB, EBTRB = 11
WRT1, EBTR1 = 11
WRT0, EBTR0 = 10
WRTB, EBTRB = 11
WRT0, EBTR0 = 10
WRT1, EBTR1 = 11
© 2009 Microchip Technology Inc.