PIC16F1938_13 Datasheet, PDF (393/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
TABLE 30-2: OSCILLATOR PARAMETERS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C TA +125°C
Param
No.
Sym.
Characteristic
Freq.
Tolerance
Min.
Typ†
Max.
Units
Conditions
OS08 HFOSC Internal Calibrated HFINTOSC
Frequency⁽¹⁾
±2%
±3%
— 16.0 — MHz 0°C  TA  +60°C, VDD 2.5V
— 16.0 — MHz 60°C TA 85°C, VDD 2.5V
±5%
— 16.0 — MHz -40°C  TA  +125°C
OS08A MFOSC Internal Calibrated MFINTOSC
Frequency⁽¹⁾
±2%
±3%
— 500 — kHz 0°C  TA  +60°C, VDD 2.5V
— 500 — kHz 60°C TA 85°C, VDD 2.5V
±5%
— 500 — kHz -40°C  TA  +125°C
OS09 LFOSC Internal LFINTOSC Frequency
—
— 31 — kHz -40°C  TA  +125°C
OS10* TIOSC ST HFINTOSC
—
Wake-up from Sleep Start-up Time
MFINTOSC
—
Wake-up from Sleep Start-up Time
— 3.2 8
s
— 24 35 s
* These parameters are characterized but not tested.
† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Note 1: To ensure these oscillator frequency tolerances, VDD and VSS must be capacitively decoupled as close to the device as
possible. 0.1 F and 0.01 F values in parallel are recommended.
TABLE 30-3: PLL CLOCK TIMING SPECIFICATIONS (VDD = 2.7V TO 5.5V)
Param
No.
Sym.
Characteristic
Min.
Typ†
Max. Units Conditions
F10
F11
F12
F13*
FOSC Oscillator Frequency Range
4
—
8
MHz
FSYS On-Chip VCO System Frequency
16
—
32 MHz
TRC PLL Start-up Time (Lock Time)
—
—
2
ms
CLK CLKOUT Stability (Jitter)
-0.25%
—
+0.25% %
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25C unless otherwise stated. These parameters are for design guidance
only and are not tested.
FIGURE 30-7:
CLKOUT AND I/O TIMING
Cycle
FOSC
CLKOUT
Write
Q4
I/O pin
(Input)
I/O pin
(Output)
Old Value
Fetch
Q1
OS11
OS19
OS13
Read
Q2
OS20
OS21
OS16
OS17
OS15
OS14
OS18, OS19
Execute
Q3
OS12
OS18
New Value
 2011-2013 Microchip Technology Inc.
DS40001574C-page 393