PIC18LF4320-I/PT Microchip Technology, PIC18LF4320-I/PT Datasheet - Page 39
![IC MCU FLASH 4KX16 EEPROM 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18LF4320-I/PT
Manufacturer Part Number
PIC18LF4320-I/PT
Description
IC MCU FLASH 4KX16 EEPROM 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18F1320-ISS.pdf
(36 pages)
4.PIC18F2220-ISO.pdf
(394 pages)
5.PIC18F2220-ISO.pdf
(6 pages)
6.PIC18F2220-ISO.pdf
(6 pages)
7.PIC18F2220-ISO.pdf
(8 pages)
8.PIC18F2220-ISO.pdf
(6 pages)
9.PIC18F2220-ISO.pdf
(6 pages)
Specifications of PIC18LF4320-I/PT
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
512Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF4320-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18LF4320-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18F1320-ISS PDF datasheet #3
- PIC18F2220-ISO PDF datasheet #4
- PIC18F2220-ISO PDF datasheet #5
- PIC18F2220-ISO PDF datasheet #6
- PIC18F2220-ISO PDF datasheet #7
- PIC18F2220-ISO PDF datasheet #8
- PIC18F2220-ISO PDF datasheet #9
- Current page: 39 of 394
- Download datasheet (7Mb)
3.4.3
In RC_RUN mode, the CPU and peripherals are
clocked from the internal oscillator block using the
INTOSC multiplexer and the primary clock is shut
down. When using the INTRC source, this mode pro-
vides the best power conservation of all the Run modes
while still executing code. It works well for user applica-
tions which are not highly timing sensitive or do not
require high-speed clocks at all times.
If the primary clock source is the internal oscillator
block (either of the INTIO1 or INTIO2 oscillators), there
are no distinguishable differences between PRI_RUN
and RC_RUN modes during execution. However, a
clock switch delay will occur during entry to, and exit
from, RC_RUN mode. Therefore, if the primary clock
source is the internal oscillator block, the use of
RC_RUN mode is not recommended.
This mode is entered by clearing the IDLEN bit, setting
SCS1 (SCS0 is ignored) and executing a SLEEP
instruction. The IRCF bits may select the clock
frequency before the SLEEP instruction is executed.
When the clock source is switched to the INTOSC
multiplexer (see Figure 3-10), the primary oscillator is
shut down and the OSTS bit is cleared.
The IRCF bits may be modified at any time to immedi-
ately change the system clock speed. Executing a
SLEEP instruction is not required to select a new clock
frequency from the INTOSC multiplexer.
FIGURE 3-10:
© 2007 Microchip Technology Inc.
INTRC
OSC1
CPU
Clock
Peripheral
Clock
Program
Counter
RC_RUN MODE
Q4
Q1
PC
Q2
Q3
TIMING TRANSITION TO RC_RUN MODE
Q4
Q1
1
2
3
Clock Transition
PIC18F2220/2320/4220/4320
4
5
PC + 2
6
If the IRCF bits are all clear, the INTOSC output is not
enabled and the IOFS bit will remain clear; there will be
no indication of the current clock source. The INTRC
source is providing the system clocks.
If the IRCF bits are changed from all clear (thus
enabling the INTOSC output), the IOFS bit becomes
set after the INTOSC output becomes stable. Clocks to
the system continue while the INTOSC source
stabilizes in approximately 1 ms.
If the IRCF bits were previously at a non-zero value
before the SLEEP instruction was executed and the
INTOSC source was already stable, the IOFS bit will
remain set.
When a wake-up event occurs, the system continues to
be clocked from the INTOSC multiplexer while the pri-
mary clock is started. When the primary clock becomes
ready, a clock switch to the primary clock occurs (see
Figure 3-8). When the clock switch is complete, the
IOFS bit is cleared, the OSTS bit is set and the primary
clock is providing the system clock. The IDLEN and
SCS bits are not affected by the wake-up. The INTRC
source will continue to run if either the WDT or the
Fail-Safe Clock Monitor is enabled.
7
Note:
8
Caution should be used when modifying a
single IRCF bit. If V
possible to select a higher clock speed
than is supported by the low V
Improper device operation may result if
the V
Q2
DD
/F
OSC
Q3
specifications are violated.
Q4
DD
Q1
is less than 3V, it is
PC + 4
DS39599G-page 37
Q2
Q3
DD
.
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