PIC16LF819T-I/SSTSL Microchip Technology, PIC16LF819T-I/SSTSL Datasheet - Page 37

• Manufacturer Part Number: PIC16LF819T-I/SSTSL
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16LF819T-I/SSTSL

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 10MHz
• 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): 2 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
• Other names: PIC16LF819TISSTSL

On transitions from SEC_RUN mode to PRI_RUN
mode, the peripherals and CPU continue to be clocked
from the Timer1 oscillator while the primary clock is
started. When the primary clock becomes ready, a
clock switch back to the primary clock occurs (see
FIGURE 3-1:
FIGURE 3-2:
© 2008 Microchip Technology Inc.
Note 1:
Peripheral
Program
Counter
T1OSI
OSC1
Clock
Clock
Note 1:
CPU
CPU Clock
PLL Clock
Peripheral
Program
Counter
Output
T1OSI
OSC1
Clock
Clock transition typically occurs within 2-4 T
2:
SCS1:SCS0 bits Changed
Q1
T
Clock transition typically occurs within 2-4 T
OST
TRANSITION TIMING FOR ENTRY TO SEC_RUN MODE
TRANSITION TIMING FROM SEC_RUN MODE TO PRI_RUN MODE (HSPLL)
Q2
= 1024 T
PC
Q3
Q4
OSC
Q1
Q1
; T
T
PLL
OST
1
= 2 ms (approx). These intervals are not shown to scale.
(1)
PC
Q2
2
Clock Transition
T
3
PLL (1)
OSTS bit Set
Q3
OSC
.
OSC
Q4
.
PC + 2
n-1
(1)
Figure 3-2). When the clock switch is complete, the
T1RUN bit is cleared, the OSTS bit is set and the
primary clock is providing the clock. The IDLEN and
SCS bits are not affected by the wake-up; the Timer1
oscillator continues to run.
Q1
1
n
Transition
2
Clock
(2)
PIC18F2450/4450
n-1 n
PC + 2
Q2
Q3
Q2
Q4
Q3 Q4
Q1
Q1
PC + 4
Q2
Q2
PC + 4
DS39760D-page 35
Q3
Q3