PIC18F4539T-I/PT Microchip Technology, PIC18F4539T-I/PT Datasheet - Page 98
![IC MCU FLASH 12KX16 EE AD 44TQFP](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4539T-I/PT
Manufacturer Part Number
PIC18F4539T-I/PT
Description
IC MCU FLASH 12KX16 EE AD 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2439-ISO.pdf
(322 pages)
3.PIC18F2439-ISO.pdf
(6 pages)
Specifications of PIC18F4539T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
24KB (12K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1408 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1408 B
Interface Type
I2C, SPI, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
32
Number Of Timers
16 bit
Operating Supply Voltage
2 V to 5.5 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
DV164005, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4539T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18FXX39
9.6
The Parallel Slave Port is implemented on the 40-pin
devices only (PIC18F4X39).
PORTD also operates as an 8-bit wide Parallel Slave
Port, or microprocessor port, when control bit
PSPMODE (TRISE<4>) is set. It is asynchronously
readable and writable by the external world through RD
control input pin, RE0/AN5/RD and WR control input
pin, RE1/AN6/WR.
The PSP can directly interface to an 8-bit microproces-
sor data bus. The external microprocessor can read or
write the PORTD latch as an 8-bit latch. Setting bit
PSPMODE enables port pin RE0/AN5/RD to be the RD
input, RE1/AN6/WR to be the WR input and RE2/AN7/
CS to be the CS (chip select) input. For this functional-
ity, the corresponding data direction bits of the TRISE
register (TRISE<2:0>) must be configured as inputs
(set). The A/D port configuration bits, PCFG2:PCFG0
(ADCON1<2:0>), must be set, which will configure pins
RE2:RE0 as digital I/O.
A write to the PSP occurs when both the CS and WR
lines are first detected low. A read from the PSP occurs
when both the CS and RD lines are first detected low.
The PORTE I/O pins become control inputs for the
microprocessor port when bit PSPMODE (TRISE<4>)
is set. In this mode, the user must make sure that the
TRISE<2:0> bits are set (pins are configured as digital
inputs), and the ADCON1 is configured for digital I/O.
In this mode, the input buffers are TTL.
FIGURE 9-11:
DS30485A-page 96
PORTD<7:0>
PSPIF
Parallel Slave Port
OBF
CS
WR
RD
IBF
Q1
PARALLEL SLAVE PORT WRITE WAVEFORMS
Q2
Q3
Q4
Preliminary
Q1
Q2
FIGURE 9-10:
One bit of PORTD
Note: I/O pin has protection diodes to V
Data Bus
Q3
Set Interrupt Flag
PSPIF (PIR1<7>)
WR LATD
or
PORTD
RD PORTD
RD LATD
Q4
TRIS Latch
Data Latch
Q
D
CK
Q1
EN
EN
Q
D
PORTD AND PORTE
BLOCK DIAGRAM
(PARALLEL SLAVE
PORT)
2002 Microchip Technology Inc.
Q2
Chip Select
Read
Write
Q3
TTL
DD
TTL
TTL
TTL
and V
Q4
SS
RDx
Pin
CS
WR
.
RD
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