PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 107

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TABLE 10-1:
TABLE 10-2:
 2005 Microchip Technology Inc.
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4/LVDIN
OSC2/CLKO/RA6
Legend: TTL = TTL input, ST = Schmitt Trigger input
PORTA
LATA
TRISA
ADCON1
Legend: x = unknown, u = unchanged, — = unimplemented locations read as ‘0’.
Note 1:
Name
Name
Shaded cells are not used by PORTA.
RA6 and associated bits are configured as port pins in RCIO and ECIO Oscillator modes only and read ‘0’
in all other oscillator modes.
REF
REF
Bit 7
—
—
—
—
-
+
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
LATA6
TRISA6
RA6
Bit 6
—
(1)
(1)
Bit#
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
(1)
LATA Data Output Register
PORTA Data Direction Register
VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0 --00 0000 --00 0000
Bit 5
RA5
Buffer
TTL
TTL
TTL
TTL
TTL
TTL
ST
Bit 4
RA4
PIC18F6525/6621/8525/8621
Input/output or analog input.
Input/output or analog input.
Input/output, analog input or V
Input/output, analog input or V
Input/output or external clock input for Timer0.
Output is open-drain type.
Input/output, analog input or Low-Voltage Detect input.
OSC2, clock output or I/O pin
Bit 3
RA3
Bit 2
RA2
Bit 1
RA1
REF
REF
Function
-.
+.
Bit 0
RA0
-x0x 0000 -u0u 0000
-xxx xxxx -uuu uuuu
-111 1111 -111 1111
POR, BOR
Value on
DS39612B-page 105
Value on
all other
Resets