PIC18F4680-E/PT Microchip Technology, PIC18F4680-E/PT Datasheet - Page 30
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4680-E/PT
Manufacturer Part Number
PIC18F4680-E/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F4585-IPT.pdf
(482 pages)
4.PIC18F4585-IPT.pdf
(14 pages)
5.PIC18F4585-IPT.pdf
(8 pages)
6.PIC18F4585-IPT.pdf
(12 pages)
7.PIC18F4585-IPT.pdf
(4 pages)
Specifications of PIC18F4680-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4680 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4680-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F4585-IPT PDF datasheet #3
- PIC18F4585-IPT PDF datasheet #4
- PIC18F4585-IPT PDF datasheet #5
- PIC18F4585-IPT PDF datasheet #6
- PIC18F4585-IPT PDF datasheet #7
- Current page: 30 of 482
- Download datasheet (9Mb)
PIC18F2585/2680/4585/4680
2.7
Like previous PIC18 devices, the PIC2585/2680/
4585/4680 family includes a feature that allows the
device clock source to be switched from the main
oscillator to an alternate low-frequency clock source.
PIC18F2585/2680/4585/4680 devices offer two alter-
nate clock sources. When an alternate clock source is
enabled, the various power managed operating modes
are available.
Essentially, there are three clock sources for these
devices:
• Primary oscillators
• Secondary oscillators
• Internal oscillator block
The primary oscillators include the External Crystal
and Resonator modes, the External RC modes, the
External Clock modes and the internal oscillator block.
The particular mode is defined by the FOSC3:FOSC0
Configuration bits. The details of these modes are
covered earlier in this chapter.
FIGURE 2-8:
DS39625C-page 28
T1OSO
T1OSI
OSC2
OSC1
Clock Sources and Oscillator
Switching
Primary Oscillator
Secondary Oscillator
PIC18F2585/2680/4585/4680 CLOCK DIAGRAM
OSCCON<6:4>
Oscillator
Internal
Source
INTRC
Source
8 MHz
Block
T1OSCEN
Enable
Oscillator
Sleep
31 kHz (INTRC)
(INTOSC)
8 MHz
OSCTUNE<6>
Preliminary
PIC18FX585/X680
1
0
500 kHz
250 kHz
125 kHz
31 kHz
8 MHz
4 MHz
2 MHz
1 MHz
OSCCON<6:4>
register details.
The secondary oscillators are those external sources
not connected to the OSC1 or OSC2 pins. These
sources may continue to operate even after the
controller is placed in a power managed mode.
PIC18F2585/2680/4585/4680 devices offer the Timer1
oscillator as a secondary oscillator. This oscillator, in all
power managed modes, is often the time base for
functions such as a real-time clock.
Most often, a 32.768 kHz watch crystal is connected
between the RC0/T1OSO/T13CKI and RC1/T1OSI
pins. Like the LP mode oscillator circuit, loading
capacitors are also connected from each pin to ground.
The Timer1 oscillator is discussed in greater detail in
Section 12.3 “Timer1 Oscillator”.
In addition to being a primary clock source, the internal
oscillator block is available as a power managed
mode clock source. The INTRC source is also used as
the clock source for several special features, such as
the WDT and Fail-Safe Clock Monitor.
The clock sources for the PIC18F2585/2680/4585/4680
devices are shown in Figure 2-8. See Section 24.0
“Special Features of the CPU” for Configuration
OSCTUNE<7>
111
110
101
100
011
010
001
000
4 x PLL
HSPLL, INTOSC/PLL
LP, XT, HS, RC, EC
Internal Oscillator
FOSC3:FOSC0
T1OSC
© 2007 Microchip Technology Inc.
Clock Source Option
for other Modules
WDT, PWRT, FSCM
and Two-Speed Startup
Control
Clock
OSCCON<1:0>
Peripherals
IDLEN
CPU
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