PIC18LF25K22-I/SS Microchip Technology, PIC18LF25K22-I/SS Datasheet - Page 333
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PIC18LF25K22-I/SS
Manufacturer Part Number
PIC18LF25K22-I/SS
Description
MCU 8BIT 32KB FLASH 3.6V 28SSOP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18LF25K22-I/SS
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
64MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 19x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Controller Family/series
PIC18
No. Of I/o's
25
Eeprom Memory Size
256Byte
Ram Memory Size
1536Byte
Cpu Speed
64MHz
No. Of Timers
7
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1536 B
Interface Type
I2C, SPI, EUSART
Maximum Clock Frequency
64 MHz
Number Of Programmable I/os
25
Number Of Timers
7
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 17 Channel
On-chip Dac
5 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18LF25K22-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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20.0
The module consists of a single SR Latch with multiple
Set and Reset inputs as well as separate latch outputs.
The SR Latch module includes the following features:
• Programmable input selection
• SR Latch output is available internally/externally
• Selectable Q and Q output
• Firmware Set and Reset
The SR Latch can be used in a variety of analog
applications, including oscillator circuits, one-shot
circuit, hysteretic controllers, and analog timing
applications.
20.1
The latch is a Set-Reset Latch that does not depend on
a clock source. Each of the Set and Reset inputs are
active-high. The latch can be set or reset by:
• Software control (SRPS and SRPR bits)
• Comparator C1 output (SYNCC1OUT)
• Comparator C2 output (SYNCC2OUT)
• SRI Pin
• Programmable clock (DIVSRCLK)
The SRPS and the SRPR bits of the SRCON0 register
may be used to set or reset the SR Latch, respectively.
The latch is Reset-dominant. Therefore, if both Set and
Reset inputs are high, the latch will go to the Reset
state. Both the SRPS and SRPR bits are self resetting
which means that a single write to either of the bits is
all that is necessary to complete a latch Set or Reset
operation.
The output from Comparator C1 or C2 can be used as
the Set or Reset inputs of the SR Latch. The output of
either Comparator can be synchronized to the Timer1
clock
Module”
Gate Control”
An external source on the SRI pin can be used as the
Set or Reset inputs of the SR Latch.
An internal clock source, DIVSRCLK, is available and it
can periodically set or reset the SR Latch. The
SRCLK<2:0> bits in the SRCON0 register are used to
select the clock source period. The SRSCKE and
SRRCKE bits of the SRCON1 register enable the clock
source to set or reset the SR Latch, respectively.
2010 Microchip Technology Inc.
source.
SR LATCH
Latch Operation
and
Section 12.0 “Timer1/3/5 Module with
for more information.
See
Section 18.0
“Comparator
Preliminary
20.2
The SRQEN and SRNQEN bits of the SRCON0
register control the Q and Q latch outputs. Both of the
SR Latch outputs may be directly output to I/O pins at
the same time. Control is determined by the state of bits
SRQEN and SRNQEN in the SRCON0 register.
The applicable TRIS bit of the corresponding port must
be cleared to enable the port pin output driver.
20.3
The DIVSRCLK clock signal is generated from the
peripheral clock which is pre-scaled by a value
determined by the SRCLK<2:0> bits. See
and
20.4
Upon any device Reset, the SR Latch is not initialized,
and the SRQ and SRNQ outputs are unknown. The
user’s firmware is responsible to initialize the latch
output before enabling it to the output pins.
PIC18(L)F2X/4XK22
Table 20-1
Latch Output
DIVSRCLK Clock Generation
Effects of a Reset
for additional detail.
DS41412D-page 333
Figure 20-2
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