PIC16LF77-I/PT Microchip Technology, PIC16LF77-I/PT Datasheet - Page 94
![IC PIC MCU FLASH 8KX14 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC16LF77-I/PT
Manufacturer Part Number
PIC16LF77-I/PT
Description
IC PIC MCU FLASH 8KX14 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF77-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC16LF77I/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF77-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC16F7X
TABLE 12-2:
DS30325B-page 92
Osc Type
Capacitor values are for design guidance only.
These capacitors were tested with the crystals listed
below for basic start-up and operation. These values
were not optimized.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
V
See the notes following this table for additional
information.
200 kHz
20 MHz
DD
32 kHz
1 MHz
4 MHz
8 MHz
Note 1: Higher capacitance increases the stability
XT
HS
LP
and temperature range for the application.
2: Since each resonator/crystal has its own
3: Rs may be required in HS mode, as well
4: Always verify oscillator performance over
of oscillator, but also increases the start-
up time.
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate values of external compo-
nents.
as XT mode, to avoid overdriving crystals
with low drive level specification.
the V
expected for the application.
200 kHz
200 kHz
Crystal
20 MHz
32 kHz
1 MHz
4 MHz
4 MHz
8 MHz
Freq
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
(FOR DESIGN GUIDANCE
ONLY)
DD
EPSON CA-301 20.000M-C
Crystals Used:
EPSON CA-301 8.000M-C
Epson C-001R32.768K-A
STD XTL 200.000KHz
and temperature range that is
ECS ECS-10-13-1
ECS ECS-40-20-1
Typical Capacitor Values
33 pF
15 pF
56 pF
15 pF
15 pF
15 pF
15 pF
15 pF
C1
Tested:
33 pF
15 pF
15 pF
15 pF
15 pF
15 pF
56 pF
15 pF
C2
12.2.3
For timing insensitive applications, the “RC” device
option offers additional cost savings. The RC oscillator
frequency is a function of the supply voltage, the resis-
tor (R
ing temperature. In addition to this, the oscillator
frequency will vary from unit to unit due to normal pro-
cess parameter variation. Furthermore, the difference
in lead frame capacitance between package types will
also affect the oscillation frequency, especially for low
C
variation due to tolerance of external R and C compo-
nents used. Figure 12-3 shows how the R/C combina-
tion is connected to the PIC16F7X.
FIGURE 12-3:
Recommended values:
EXT
C
V
R
EXT
SS
EXT
EXT
values. The user also needs to take into account
V
DD
) and capacitor (C
RC OSCILLATOR
F
OSC
/4
RC OSCILLATOR MODE
OSC1
OSC2/CLKOUT
2002 Microchip Technology Inc.
EXT
3 k Ω ≤ R
C
EXT
) values, and the operat-
> 20pF
EXT
≤ 100 k Ω
PIC16F7X
Internal
Clock
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