PIC18F2221-E/ML Microchip Technology, PIC18F2221-E/ML Datasheet - Page 23

• Manufacturer Part Number: PIC18F2221-E/ML
• Description: 4KB, Flash, 512bytes-RAM, 25I/O, 8-bit Family,nanoWatt 28 QFN 6x6mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2221-E/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): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE 1-3:
© 2009 Microchip Technology Inc.
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
RE3
V
V
NC
Legend: TTL = TTL compatible input
Note 1:
SS
DD
RE0
RD
AN5
RE1
WR
AN6
RE2
CS
AN7
2:
Pin Name
ST = Schmitt Trigger input with CMOS levels
I
Default assignment for CCP2 when Configuration bit, CCP2MX, is set.
Alternate assignment for CCP2 when Configuration bit, CCP2MX, is cleared.
2
C = ST with I
PIC18F4221/4321 PINOUT I/O DESCRIPTIONS (CONTINUED)
PIC18F2221/2321/4221/4321 FAMILY
12, 31 6, 30,
11, 32 7, 8,
PDIP
10
—
—
2
8
9
C™ or SMB levels
Pin Number
28, 29
QFN TQFP
25
26
27
31
13
—
12, 13,
33, 34
6, 29
7, 28
25
26
27
—
Type
Pin
I/O
I/O
I/O
—
—
P
P
I
I
I
I
I
I
Analog
Analog
Analog
Buffer
Type
TTL
TTL
TTL
ST
ST
ST
—
—
—
—
PORTE is a bidirectional I/O port.
See MCLR/V
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
No Connect.
CMOS = CMOS compatible input or output
I
O
Digital I/O.
Read control for Parallel Slave Port
(see also WR and CS pins).
Analog Input 5.
Digital I/O.
Write control for Parallel Slave Port
(see CS and RD pins).
Analog Input 6.
Digital I/O.
Chip Select control for Parallel Slave Port
(see related RD and WR).
Analog Input 7.
= Input
= Output
PP
/RE3 pin.
Description
P = Power
DS39689F-page 23