PIC18F8620T-E/PT Microchip Technology, PIC18F8620T-E/PT Datasheet - Page 105
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PIC18F8620T-E/PT
Manufacturer Part Number
PIC18F8620T-E/PT
Description
IC PIC MCU FLASH 32KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F8520T-IPT.pdf
(380 pages)
3.PIC18F8520T-IPT.pdf
(40 pages)
4.PIC18F6620-IPT.pdf
(14 pages)
5.PIC18F6620-IPT.pdf
(12 pages)
Specifications of PIC18F8620T-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
68
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.75K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3840 B
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
68
Number Of Timers
2 x 8 bit
Operating Supply Voltage
4.2 V to 5.5 V
Maximum Operating Temperature
+ 125 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, ICE2000, ICE4000, DV164136, DM183022, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
16 bit
Data Rom Size
1024 B
Height
1 mm
Length
12 mm
Supply Voltage (max)
5.5 V, 5.8 V
Supply Voltage (min)
3.9 V, 4.2 V
Width
12 mm
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8620T-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F8520T-IPT PDF datasheet #2
- PIC18F8520T-IPT PDF datasheet #3
- PIC18F6620-IPT PDF datasheet #4
- PIC18F6620-IPT PDF datasheet #5
- Current page: 105 of 380
- Download datasheet (7Mb)
10.0
Depending on the device selected, there are either
seven or nine I/O ports available on PIC18FXX20
devices. Some of their pins are multiplexed with one or
more alternate functions from the other peripheral fea-
tures on the device. In general, when a peripheral is
enabled, that pin may not be used as a general
purpose I/O pin.
Each port has three registers for its operation. These
registers are:
• TRIS register (data direction register)
• PORT register (reads the levels on the pins of the
• LAT register (output latch)
The Data Latch (LAT register) is useful for read-modify-
write operations on the value that the I/O pins are
driving.
A simplified version of a generic I/O port and its
operation is shown in Figure 10-1.
FIGURE 10-1:
2004 Microchip Technology Inc.
device)
RD Port
RD LAT
WR Port
Data Bus
WR LAT +
I/O PORTS
PIC18F6520/8520/6620/8620/6720/8720
D
Data Latch
CK
SIMPLIFIED BLOCK
DIAGRAM OF PORT/LAT/
TRIS OPERATION
Q
TRIS
I/O pin
10.1
PORTA is a 7-bit wide, bidirectional port. The corre-
sponding data direction register is TRISA. Setting a
TRISA bit (= 1) will make the corresponding PORTA pin
an input (i.e., put the corresponding output driver in a
high-impedance mode). Clearing a TRISA bit (= 0) will
make the corresponding PORTA pin an output (i.e., put
the contents of the output latch on the selected pin).
Reading the PORTA register reads the status of the
pins, whereas writing to it will write to the port latch.
The Data Latch register (LATA) is also memory
mapped. Read-modify-write operations on the LATA
register, read and write the latched output value for
PORTA.
The RA4 pin is multiplexed with the Timer0 module
clock input to become the RA4/T0CKI pin. The RA4/
T0CKI pin is a Schmitt Trigger input and an open-drain
output. All other RA port pins have TTL input levels and
full CMOS output drivers.
The RA6 pin is only enabled as a general I/O pin in
ECIO and RCIO Oscillator modes.
The other PORTA pins are multiplexed with analog
inputs and the analog V
operation of each pin is selected by clearing/setting the
control bits in the ADCON1 register (A/D Control
Register 1).
The TRISA register controls the direction of the RA
pins, even when they are being used as analog inputs.
The user must ensure the bits in the TRISA register are
maintained set when using them as analog inputs.
EXAMPLE 10-1:
CLRF
CLRF
MOVLW
MOVWF
MOVLW
MOVWF
Note:
PORTA, TRISA and LATA
Registers
PORTA
LATA
0x0F
ADCON1 ; for digital inputs
0xCF
TRISA
On a Power-on Reset, RA5 and RA3:RA0
are configured as analog inputs and read
as ‘0’. RA6 and RA4 are configured as
digital inputs.
; Initialize PORTA by
; clearing output
; data latches
; Alternate method
; to clear output
; data latches
; Configure A/D
; Value used to
; initialize data
; direction
; Set RA<3:0> as inputs
; RA<5:4> as outputs
INITIALIZING PORTA
REF
+ and V
DS39609B-page 103
REF
- inputs. The
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