PIC18F8621-E/PT Microchip Technology, PIC18F8621-E/PT Datasheet - Page 26
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18F8621-E/PT
Manufacturer Part Number
PIC18F8621-E/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,80PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6525-IPT.pdf
(396 pages)
3.PIC18F6525-IPT.pdf
(8 pages)
4.PIC18F6525-IPT.pdf
(38 pages)
Specifications of PIC18F8621-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.75K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8621-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6525-IPT PDF datasheet #2
- PIC18F6525-IPT PDF datasheet #3
- PIC18F6525-IPT PDF datasheet #4
- Current page: 26 of 396
- Download datasheet (8Mb)
PIC18F6525/6621/8525/8621
2.6
The PIC18F6525/6621/8525/8621 devices include a
feature that allows the system clock source to be
switched from the main oscillator to an alternate low
frequency clock source. For the PIC18F6525/6621/
8525/8621 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 execution mode.
FIGURE 2-7:
DS39612B-page 24
Oscillator Switching Feature
T1OSO
T1OSI
OSC2
OSC1
DEVICE CLOCK SOURCES
Timer1 Oscillator
Main Oscillator
PIC18F6X2X/8X2X
T1OSCEN
Enable
Oscillator
Sleep
Clock Source Option
for Other Modules
4 x PLL
Figure 2-7 shows a block diagram of the system clock
sources. The clock switching feature is enabled by
programming
(OSCSEN) bit in the CONFIG1H Configuration register
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 register
details.
T
T
T
OSC
1
P
T
OSC
/4
the
Source
Clock
Oscillator
2005 Microchip Technology Inc.
T
SCLK
Switching
Enable
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