PIC18F23K20-E/ML Microchip Technology, PIC18F23K20-E/ML Datasheet - Page 160
![8 KB Enh Flash, 768 RAM, 25 I/O Pb Free, Nanowatt XLP 28 QFN 6x6mm TUBE](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC18F23K20-E/ML
Manufacturer Part Number
PIC18F23K20-E/ML
Description
8 KB Enh Flash, 768 RAM, 25 I/O Pb Free, Nanowatt XLP 28 QFN 6x6mm TUBE
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18F25K20T-ISS.pdf
(42 pages)
2.PIC18F25K20T-ISS.pdf
(456 pages)
3.PIC18F23K20-ISS.pdf
(10 pages)
Specifications of PIC18F23K20-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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PIC18F2XK20/4XK20
13.1
Timer1 can operate in one of the following modes:
• Timer
• Synchronous Counter
• Asynchronous Counter
The operating mode is determined by the clock select
bit, TMR1CS of the T1CON register. When TMR1CS is
cleared (= 0), Timer1 increments on every internal
FIGURE 13-1:
FIGURE 13-2:
DS41303G-page 160
Note 1: When enable bit, T1OSCEN, is cleared, the inverter and feedback resistor are turned off to eliminate power drain.
T1OSO/T13CKI
Note 1: When enable bit, T1OSCEN, is cleared, the inverter and feedback resistor are turned off to eliminate power drain.
T1OSO/T13CKI
Timer1 Operation
T1OSI
T1OSI
T1OSCEN
Timer1 Oscillator
T1CKPS<1:0>
T1SYNC
TMR1ON
Timer1 Oscillator
T1OSCEN
TIMER1 BLOCK DIAGRAM
TIMER1 BLOCK DIAGRAM (16-BIT READ/WRITE MODE)
T1CKPS<1:0>
T1SYNC
TMR1ON
(1)
(1)
TMR1CS
TMR1CS
(CCP Special Event Trigger)
(CCP Special Event Trigger)
Clear TMR1
Clear TMR1
Clock
Internal
F
Clock
Internal
F
OSC
OSC
/4
/4
On/Off
1
0
1
0
Timer1 Clock Input
Timer1 Clock Input
Prescaler
1, 2, 4, 8
Prescaler
1, 2, 4, 8
instruction cycle (F
increments on every rising edge of either the Timer1
external clock input or the Timer1 oscillator, if enabled.
When the Timer1 oscillator is enabled, the digital
circuitry
RC0/T1OSO/T13CKI pins is disabled. This means the
values of TRISC<1:0> are ignored and the pins are
read as ‘0’.
2
2
TMR1L
TMR1L
associated
8
Sleep Input
Synchronize
Sleep Input
8
Synchronize
OSC
Detect
Detect
High Byte
High Byte
TMR1H
TMR1
TMR1
/4). When the bit is set, Timer1
8
with
2010 Microchip Technology Inc.
8
8
the
Internal Data Bus
1
0
1
0
Read TMR1L
Write TMR1L
RC1/T1OSI
on Overflow
on Overflow
TMR1IF
TMR1IF
Set
Set
Timer1
On/Off
Timer1
On/Off
and
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