PIC18LF27J53-I/SO Microchip Technology, PIC18LF27J53-I/SO Datasheet - Page 142
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PIC18LF27J53-I/SO
Manufacturer Part Number
PIC18LF27J53-I/SO
Description
IC PIC MCU 128KB FLASH 28SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18F26J13-ISS.pdf
(496 pages)
3.PIC18F26J53-ISS.pdf
(586 pages)
4.PIC18F26J53-ISS.pdf
(12 pages)
Specifications of PIC18LF27J53-I/SO
Core Size
8-Bit
Program Memory Size
128KB (64K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, LIN, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 2.75 V
Data Converters
A/D 10x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Controller Family/series
PIC18
Cpu Speed
48MHz
Digital Ic Case Style
SOIC
Supply Voltage Range
1.8V To 3.6V
Embedded Interface Type
I2C, SPI, USART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC18LF24J10-ISS PDF datasheet
- PIC18F26J13-ISS PDF datasheet #2
- PIC18F26J53-ISS PDF datasheet #3
- PIC18F26J53-ISS PDF datasheet #4
- Current page: 142 of 586
- Download datasheet (6Mb)
PIC18F47J53 FAMILY
10.1.3
Though the V
these devices are still capable of interfacing with 5V
systems, even if the V
3.6V. This is accomplished by adding a pull-up resistor
to the port pin (Figure 10-2), clearing the LAT bit for that
pin and manipulating the corresponding TRIS bit
(Figure 10-1) to either allow the line to be pulled high or
to drive the pin low. Only port pins that are tolerant of
voltages up to 5.5V can be used for this type of
interface (refer to Section 10.1.2 “Input Pins and
Voltage Considerations”).
FIGURE 10-2:
EXAMPLE 10-1:
10.1.4
The output pins for several peripherals are also
equipped with a configurable open-drain output option.
This allows the peripherals to communicate with
external digital logic operating at a higher voltage level,
without the use of level translators.
The open-drain option is implemented on port pins
specifically associated with the data and clock outputs
of the EUSARTs, the MSSP modules (in SPI mode) and
DS39964B-page 142
BCF
BCF
BCF
PIC18F47J53
LATD, 7
TRISD, 7 ; send a 0 to the 5V system
TRISD, 7 ; send a 1 to the 5V system
INTERFACING TO A 5V SYSTEM
OPEN-DRAIN OUTPUTS
RD7
DDMAX
; set up LAT register so
; changing TRIS bit will
; drive line low
of the PIC18F47J53 family is 3.6V,
IH
+5V SYSTEM HARDWARE
INTERFACE
COMMUNICATING WITH
THE +5V SYSTEM
of the target system is above
+5V
+5V Device
Preliminary
the ECCP modules. It is selectively enabled by setting
the open-drain control bit for the corresponding module
in the ODCON registers (Register 10-1, Register 10-2
and Register 10-3). Their configuration is discussed in
more detail with the individual port where these
peripherals are multiplexed. Output functions that are
routed through the PPS module may also use the
open-drain option. The open-drain functionality will
follow the I/O pin assignment in the PPS module.
When the open-drain option is required, the output pin
must also be tied through an external pull-up resistor
provided by the user to a higher voltage level, up to
5.5V (Figure 10-3). When a digital logic high signal is
output, it is pulled up to the higher voltage level.
FIGURE 10-3:
10.1.5
Many of the digital I/O ports use Schmitt Trigger (ST)
input buffers. While this form of buffering works well
with many types of input, some applications may
require TTL level signals to interface with external logic
devices. This is particularly true for the Parallel Master
Port (PMP), which is likely to be interfaced to TTL level
logic or memory devices.
The inputs for the PMP can be optionally configured for
TTL buffers with the PMPTTL bit in the PADCFG1 reg-
ister (Register 10-4). Setting this bit configures all data
and control input pins for the PMP to use TTL buffers.
By default, these PMP inputs use the port’s ST buffers.
3.3V
TTL INPUT BUFFER OPTION
V
DD
PIC18F47J53
(at logic ‘1’)
USING THE OPEN-DRAIN
OUTPUT (USART SHOWN
AS EXAMPLE)
2010 Microchip Technology Inc.
TX
X
+5V
5V
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