PIC18LF2221-I/ML Microchip Technology, PIC18LF2221-I/ML Datasheet - Page 62

• Manufacturer Part Number: PIC18LF2221-I/ML
• Description: 4 KB Flash, 512 RAM 28 QFN 6x6mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF2221-I/ML

• 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): 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F4321 FAMILY
FIGURE 5-5:
DS39689A-page 60
BSR<3:0>
= 0001
= 0000
= 0010
= 1110
= 1111
DATA MEMORY MAP FOR PIC18F4321 FAMILY DEVICES
Bank 14
Bank 15
Bank 2
Bank 1
Bank 0
to
FFh
00h
FFh
00h
Data Memory Map
Access RAM
Advance Information
Read ‘00h’
Unused
Unused
GPR
SFR
GPR
EFFh
F00h
F7Fh
F80h
FFFh
0FFh
1FFh
07Fh
100h
000h
080h
When a = 0,
When a = 1,
The BSR is ignored and the
Access Bank is used.
The first 128 bytes are
General Purpose RAM
(from Bank 0).
The second 128 bytes are
Special Function Registers
(from Bank 15).
The BSR specifies the Bank
used by the instruction.
© 2005 Microchip Technology Inc.
Access RAM High
Access RAM Low
Access Bank
(SFRs)
7Fh
FFh
00h
80h