PIC18F6585-I/PT Microchip Technology Inc., PIC18F6585-I/PT Datasheet - Page 28

• Manufacturer Part Number: PIC18F6585-I/PT
• Description: 64 PIN, 48 KB FLASH, 3328 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6585-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 53
• Interface: CAN/I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 48K Bytes
• Ram Size: 3.3K 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

PIC18F6585/8585/6680/8680
2.6
The PIC18F6585/8585/6680/8680 devices include a
feature that allows the system clock source to be
switched from the main oscillator to an alternate
low-frequency
PIC18F6585/8585/6680/8680 devices, this alternate
clock source is the Timer1 oscillator. If a low-frequency
crystal (32 kHz, for example) has been attached to the
Timer1 oscillator pins and the Timer1 oscillator has
been enabled, the device can switch to a low-power
FIGURE 2-7:
DS30491C-page 26
Oscillator Switching Feature
clock
OSC2
OSC1
T1OSO
T1OSI
DEVICE CLOCK SOURCES
source.
Timer1 Oscillator
Main Oscillator
PIC18FXX80/XX85
For
Sleep
T1OSCEN
Enable
Oscillator
the
Clock Source Option
for other Modules
4 x PLL
register details.
execution mode. Figure 2-7 shows a block diagram of
the system clock sources. The clock switching feature
is enabled by programming the Oscillator Switching
Enable (OSCSEN) bit in configuration register,
CONFIG1H, to a ‘0’. Clock switching is disabled in an
erased device. See Section 12.0 “Timer1 Module” for
further details of the Timer1 oscillator. See Section 24.0
“Special Features of the CPU” for configuration
T
T
T
OSC
1
P
Tosc/4
Source
Clock
 2004 Microchip Technology Inc.
T
SCLK