PIC18F2221-I/ML Microchip Technology, PIC18F2221-I/ML Datasheet - Page 12

• 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

PIC18F2221/2321/4221/4321 FAMILY
FIGURE 1-1:
DS39689F-page 12
Note 1:
OSC1
OSC2
T1OSI
T1OSO
MCLR
V
Comparator
DD
Instruction Bus <16>
Table Pointer<21>
BOR
Program Memory
,
LVD
Address Latch
V
inc/dec logic
(2)
Data Latch
(3)
(3)
SS
(4 Kbytes)
2:
3:
21
CCP2 is multiplexed with RC1 when Configuration bit, CCP2MX, is set, or RB3 when CCP2MX is not set.
RE3 is only available when MCLR functionality is disabled.
OSC1/CLKI and OSC2/CLKO are only available in select oscillator modes and when these pins are not being used as digital I/O.
Refer to Section 3.0 “Oscillator Configurations” for additional information.
EEPROM
Single-Supply
Programming
CCP1
Data
Debugger
Oscillator
Oscillator
Oscillator
20
8
In-Circuit
Internal
INTRC
8 MHz
Block
PIC18F2221/2321 (28-PIN) BLOCK DIAGRAM
Table Latch
ROM Latch
Instruction
Decode &
Control
PCLATU
PCU
Program Counter
IR
31 Level Stack
Timer0
CCP2
STKPTR
PCH
PCLATH
Start-up Timer
Clock Monitor
8
Brown-out
Watchdog
Power-up
Power-on
Oscillator
Fail-Safe
State Machine
Control Signals
PCL
Timer
Reset
Timer
Reset
Data Bus<8>
8
Timer1
MSSP
BITOP
EUSART
BSR
Timer2
Band Gap
Reference
Precision
4
3
8
Data Address<12>
Address
Address Latch
Decode
Data Memory
inc/dec
FSR0
FSR1
FSR2
(3.9 Kbytes)
Data Latch
logic
PRODH
8
ALU<8>
8 x 8 Multiply
12
W
12
Timer3
10-Bit
8
ADC
8
Access
Bank
PRODL
4
12
8
8
8
8
PORTB
PORTE
PORTA
PORTC
© 2009 Microchip Technology Inc.
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
RB3/AN9/CCP2
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI/C1OUT
RA5/AN4/SS/HLVDIN/C2OUT
OSC2/CLKO
OSC1/CLKI
MCLR/V
RC0/T1OSO/T13CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
PP
/RE3
REF
REF
(3)
(3)
/RA7
-/CV
+
/RA6
(1)
(2)
(1)
REF