PIC18F26K80-E/SP Microchip Technology Inc., PIC18F26K80-E/SP Datasheet - Page 218
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PIC18F26K80-E/SP
Manufacturer Part Number
PIC18F26K80-E/SP
Description
28 SPDIP .300IN TUBE, ECAN, 64KB FLASH, 4KB RAM, 16 MIPS, 12-BIT ADC, CTMU
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F46K80-IPT.pdf
(628 pages)
Specifications of PIC18F26K80-E/SP
A/d Inputs
8-Channel, 12-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
256 Bytes
Input Output
24
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
64K Bytes
Ram Size
3.6K Bytes
Speed
64 MHz
Temperature Range
–40 to 125 °C
Timers
2-8-bit, 3-16-bit
Voltage, Range
1.8-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Available stocks
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Quantity
Price
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Part Number:
PIC18F26K80-E/SP
Manufacturer:
SILICON
Quantity:
210
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When the internal clock source is selected, the
PIC18F66K80 FAMILY
14.2
The Timer1 module is an 8 or 16-bit incrementing
counter that is accessed through the TMR1H:TMR1L
register pair.
When used with an internal clock source, the module is
a timer and increments on every instruction cycle.
When used with an external clock source, the module
can be used as either a timer or counter. It increments
on every selected edge of the external source.
Timer1 is enabled by configuring the TMR1ON and
TMR1GE bits in the T1CON and T1GCON registers,
respectively.
When SOSC is selected as Crystal mode (by
SOSCSEL), the RC1/SOSCI and RC0/SOSCO/SCLKI
pins become inputs. This means the values of
TRISC<1:0> are ignored and the pins are read as ‘ 0 ’.
14.3
The TMR1CS<1:0> and SOSCEN bits of the T1CON
register are used to select the clock source for Timer1.
Table 14-1
14.3.1
TMR1H:TMR1L register pair will increment on multiples
of F
TABLE 14-1:
DS39977C-page 218
OSC
TMR1CS1
as determined by the Timer1 prescaler.
Timer1 Operation
Clock Source Selection
0
0
1
1
displays the clock source selections.
INTERNAL CLOCK SOURCE
TIMER1 CLOCK SOURCE SELECTION
TMR1CS0
1
0
0
0
SOSCEN
Preliminary
x
x
0
1
Clock Source (F
Instruction Clock (F
External Clock on T1CKI Pin
Oscillator Circuit on SOSCI/SOSCO Pins
asynchronously.
14.3.2
When the external clock source is selected, the Timer1
module may work as a timer or a counter.
When enabled to count, Timer1 is incremented on the
rising edge of the external clock input, T1CKI. Either of
these external clock sources can be synchronized to the
microcontroller
When used as a timer with a clock oscillator, an
external, 32.768 kHz crystal can be used in conjunction
with the dedicated internal oscillator circuit.
Note:
EXTERNAL CLOCK SOURCE
In Counter mode, a falling edge must be
registered by the counter prior to the first
incrementing rising edge after any one or
more of the following conditions:
• Timer1 is enabled after POR Reset
• Write to TMR1H or TMR1L
• Timer1 is disabled
• Timer1 is disabled (TMR1ON = 0 )
When T1CKI is high, Timer1 is enabled
(TMR1ON = 1 ) when T1CKI is low.
OSC
system
OSC
Clock Source
)
/4)
2011 Microchip Technology Inc.
clock
or
they
can
run
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