PIC18F452-I/PT Microchip Technology Inc., PIC18F452-I/PT Datasheet - Page 91

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

Specifications of PIC18F452-I/PT

• 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 TQFP
• 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 9-1:
TABLE 9-2:
© 2006 Microchip Technology Inc.
PORTA
LATA
TRISA
ADCON1
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4/LVDIN
OSC2/CLKO/RA6
Legend: TTL = TTL input, ST = Schmitt Trigger input
Name
Name
REF
REF
ADFM
Bit 7
—
—
—
-
+
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
LATA Data Output Register
PORTA Data Direction Register
ADCS2
Bit 6
RA6
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
Bit 5
RA5
—
Buffer
TTL
TTL
TTL
TTL
TTL
TTL
ST
Bit 4
RA4
—
Input/output or analog input.
Input/output or analog input.
Input/output or analog input or V
Input/output or analog input or V
Input/output or external clock input for Timer0.
Output is open drain type.
Input/output or slave select input for synchronous serial port or analog
input, or low voltage detect input.
OSC2 or clock output or I/O pin.
PCFG3
Bit 3
RA3
PCFG2
Bit 2
RA2
PCFG1
Bit 1
RA1
Function
REF
REF
-.
+.
PCFG0
Bit 0
RA0
PIC18FXX2
-x0x 0000
-xxx xxxx
-111 1111
00-- 0000
Value on
POR,
BOR
DS39564C-page 89
-u0u 0000
-uuu uuuu
-111 1111
00-- 0000
All Other
Value on
RESETS