PIC18F85J50T-I/PT Microchip Technology, PIC18F85J50T-I/PT Datasheet - Page 138
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PIC18F85J50T-I/PT
Manufacturer Part Number
PIC18F85J50T-I/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F65J50-IPT.pdf
(480 pages)
3.PIC18F65J50-IPT.pdf
(16 pages)
Specifications of PIC18F85J50T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
65
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3904 B
Interface Type
I2C, MSSP, SPI, EUSART
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
65
Number Of Timers
5
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, DV164035, DV244005, DV164005, PG164120, DV164136, DM183022, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162087 - HEADER MPLAB ICD2 18F87J50 68/84MA180021 - MODULE PLUG-IN 18F87J50 FS USBAC164328 - MODULE SKT FOR 80TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18F85J50T-I/PTTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F85J50T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F87J50 FAMILY
Table 10-2 summarizes the output capabilities of the
ports. Refer to the “Absolute Maximum Ratings” in
Section 28.0 “Electrical Characteristics” for more
details.
TABLE 10-2:
10.1.3
Four of the I/O ports (PORTB, PORTD, PORTE and
PORTJ) implement configurable weak pull-ups on all
pins. These are internal pull-ups that allow floating
digital input signals to be pulled to a consistent level,
without the use of external resistors.
The pull-ups are enabled with a single bit for each of the
ports: RBPU (INTCON2<7>) for PORTB, and RDPU,
REPU and RJPU (PORTG<7:5>) for the other ports.
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
the CCP and ECCP modules. It is selectively enabled
by setting the open-drain control bit for the correspond-
ing 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.
The ODCON registers all reside in the SFR configuration
space, and share the same SFR addresses as the Timer1
registers (see Section 5.3.5.1 “Shared Address SFRs”
for more details). The ODCON registers are accessed by
setting the ADSHR bit (WDTCON<4>).
DS39775C-page 138
PORTA
PORTF
PORTG
PORTH
PORTD
PORTE
PORTJ
PORTB
PORTC
Note 1:
Note:
Port
(1)
(1)
These ports are not available on 64-pin
devices.
PULL-UP CONFIGURATION
RJPU is implemented on 80-pin devices
only.
OPEN-DRAIN OUTPUTS
Minimum Intended for indication.
Medium
Drive
High
OUTPUT DRIVE LEVELS
Sufficient drive levels for
external memory interfacing
as well as indication.
Suitable for direct LED drive
levels.
Description
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 10-2). When a digital logic high signal is
output, it is pulled up to the higher voltage level.
FIGURE 10-2:
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 with the EMB and the
Parallel Master Port (PMP), which are particularly 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.
As with the ODCON registers, the PADCFG1 register
resides in the SFR configuration space; it shares the
same memory address as the TMR2 register.
PADCFG1 is accessed by setting the ADSHR bit
(WDTCON<4>).
3.3V
TTL INPUT BUFFER OPTION
V
DD
PIC18F87J50
(at logic ‘1’)
USING THE OPEN-DRAIN
OUTPUT (USART SHOWN
AS EXAMPLE)
© 2009 Microchip Technology Inc.
TX
X
+5V
5V
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