PIC18F452-I/L Microchip Technology Inc., PIC18F452-I/L Datasheet - Page 15

• Manufacturer Part Number: PIC18F452-I/L
• Description: 44 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F452-I/L

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TABLE 1-3:
© 2006 Microchip Technology Inc.
MCLR/V
NC
OSC1/CLKI
OSC2/CLKO/RA6
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4/SS/LVDIN
RA6
Legend: TTL = TTL compatible input
MCLR
V
OSC1
CLKI
OSC2
CLKO
RA6
RA0
AN0
RA1
AN1
RA2
AN2
V
RA3
AN3
V
RA4
T0CKI
RA5
AN4
SS
LVDIN
Pin Name
PP
REF
REF
PP
-
+
ST = Schmitt Trigger input with CMOS levels
O = Output
OD = Open Drain (no P diode to V
REF
REF
-
+
PIC18F4X2 PINOUT I/O DESCRIPTIONS
DIP
13
14
—
1
2
3
4
5
6
7
Pin Number
PLCC TQFP
14
15
2
3
4
5
6
7
8
18
30
31
19
20
21
22
23
24
DD
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
)
—
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Analog
Analog
Analog
Analog
Analog
Analog
ST/OD
Analog
Analog
Buffer
CMOS
Type
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
—
—
—
Master Clear (input) or high voltage ICSP
programming enable pin.
These pins should be left unconnected.
Oscillator crystal or external clock input.
Oscillator crystal or clock output.
PORTA is a bi-directional I/O port.
CMOS = CMOS compatible input or output
I = Input
P = Power
Master Clear (Reset) input. This pin is an active
low RESET to the device.
High voltage ICSP programming enable pin.
Oscillator crystal input or external clock source
input. ST buffer when configured in RC mode,
CMOS otherwise.
External clock source input. Always associated
with pin function OSC1. (See related OSC1/CLKI,
OSC2/CLKO pins.)
Oscillator crystal output. Connects to crystal
or resonator in Crystal Oscillator mode.
In RC mode, OSC2 pin outputs CLKO,
which has 1/4 the frequency of OSC1 and
denotes the instruction cycle rate.
General Purpose I/O pin.
Digital I/O.
Analog input 0.
Digital I/O.
Analog input 1.
Digital I/O.
Analog input 2.
A/D Reference Voltage (Low) input.
Digital I/O.
Analog input 3.
A/D Reference Voltage (High) input.
Digital I/O. Open drain when configured as output.
Timer0 external clock input.
Digital I/O.
Analog input 4.
SPI Slave Select input.
Low Voltage Detect Input.
(See the OSC2/CLKO/RA6 pin.)
Description
PIC18FXX2
DS39564C-page 13