PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 33

• 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 3-1:
REGISTER 3-1:
TABLE 3-2:
 2005 Microchip Technology Inc.
HS with PLL enabled
HS, XT, LP
EC
External RC
Note 1:
Power-on Reset
MCLR Reset during normal operation
Software Reset during normal operation
Stack Full Reset during normal operation
Stack Underflow Reset during normal
operation
MCLR Reset during Sleep
WDT Reset
WDT Wake-up
Brown-out Reset
Interrupt Wake-up from Sleep
Legend: u = unchanged, x = unknown
Note 1:
Configuration
Oscillator
2:
3:
2 ms is the nominal time required for the 4x PLL to lock.
72 ms is the nominal power-up timer delay, if implemented.
1.5 µs is the recovery time from Sleep. There is no recovery time from oscillator switch.
When the wake-up is due to an interrupt and the GIEH or GIEL bits are set, the PC is loaded with the
interrupt vector (0008h or 0018h).
TIME-OUT IN VARIOUS SITUATIONS
STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION FOR
RCON REGISTER
Condition
(1)
RCON REGISTER BITS AND POSITIONS
bit 7
72 ms + 1024 T
R/W-0
Note 1: Refer to Section 4.14 “RCON Register” for bit definitions.
IPEN
72 ms + 1024 T
PWRTE = 0
72 ms
72 ms
OSC
U-0
—
Power-up
OSC
+ 2 ms 1024 T
PIC18F6525/6621/8525/8621
(2)
U-0
Program
PC + 2
—
Counter
PC + 2
0000h
0000h
0000h
0000h
0000h
0000h
0000h
0000h
PWRTE = 1
1024 T
1.5 µs
OSC
(1)
—
OSC
R/W-1
+ 2 ms 72 ms
RI
RI
1
u
0
u
u
u
1
u
1
u
TO
1
u
u
u
u
1
0
0
1
1
(1)
R/W-1
72 ms
TO
PD
(2)
1
u
u
u
u
0
1
0
1
0
Brown-out
+ 1024 T
(2)
72 ms
72 ms
POR
+ 1024 T
0
u
u
u
u
u
u
u
1
u
R/W-1
(2)
(2)
PD
OSC
BOR
OSC
0
u
u
u
u
u
u
u
0
u
+ 2 ms
STKFUL
R/W-0
POR
Oscillator Switch
1024 T
u
u
u
u
1
u
u
u
u
u
DS39612B-page 31
Wake-up from
1024 T
Sleep or
1.5 µs
OSC
—
STKUNF
R/W-0
BOR
OSC
(3)
+ 2 ms
u
u
u
1
u
u
u
u
u
u
bit 0