PIC16F819-I/SSTSL Microchip Technology, PIC16F819-I/SSTSL Datasheet - Page 175
PIC16F819-I/SSTSL
Manufacturer Part Number
PIC16F819-I/SSTSL
Description
IC PIC MCU FLASH 2KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(176 pages)
4.PIC16F818-ISO.pdf
(6 pages)
5.PIC16F818-ISO.pdf
(8 pages)
6.PIC16F818-ISO.pdf
(8 pages)
Specifications of PIC16F819-I/SSTSL
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F818-ISO PDF datasheet #4
- PIC16F818-ISO PDF datasheet #5
- PIC16F818-ISO PDF datasheet #6
- Current page: 175 of 688
- Download datasheet (3Mb)
11.6
1997 Microchip Technology Inc.
T0CKI pin
CLKOUT (=Fosc/4)
WDT Enable bit
Watchdog
Note: T0CS, T0SE, PSA, PS2:PS0 are (OPTION_REG<5:0>).
Timer
TMR0 Prescaler
T0SE
An 8-bit counter is available as a prescaler for the Timer0 module, or as a postscaler for the
Watchdog Timer
the Timer0 description. Thus, a prescaler assignment for the Timer0 module means that there is
no postscaler for the Watchdog Timer, and vice-versa.
The PSA and PS2:PS0 bits (OPTION<3:0>) determine the prescaler assignment and prescale
ratio.
When assigned to the Timer0 module, all instructions writing to the TMR0 register (e.g.,
CLRF TMR0, MOVWF TMR0, BSF TMR0,x....etc.) will clear the prescaler. When assigned to WDT,
a CLRWDT instruction will clear the prescaler along with the Watchdog Timer. The prescaler is not
readable or writable.
Figure 11-6: Block Diagram of the Timer0/WDT Prescaler
Note:
0
1
PSA
M
U
X
There is only one prescaler available which is mutually exclusively shared between
the Timer0 module and the Watchdog Timer.
0
1
T0CS
(Figure
M
U
X
0
8-bit Prescaler
8 - to - 1MUX
11-6). For simplicity, this counter is being referred to as “prescaler” in
Time-out
8
M U X
WDT
1
0
1
PSA
M
U
X
PSA
Section 11. Timer0
PS2:PS0
Cycles
SYNC
2
TMR0 reg
Data Bus
8
DS31011A-page 11-7
Set T0IF flag bit
on Overflow
11
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