PIC18F4420-E/PT Microchip Technology, PIC18F4420-E/PT Datasheet - Page 119
![44 PIN, 16 KB ENH FLASH, 3804 RAM, 36 I/O, PB FREE,](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4420-E/PT
Manufacturer Part Number
PIC18F4420-E/PT
Description
44 PIN, 16 KB ENH FLASH, 3804 RAM, 36 I/O, PB FREE,
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2420-IML.pdf
(412 pages)
3.PIC18F2420-IML.pdf
(16 pages)
4.PIC18F2420-IML.pdf
(8 pages)
5.PIC18F2420-IML.pdf
(6 pages)
6.PIC18F2420-IML.pdf
(8 pages)
7.PIC18F2420-IML.pdf
(4 pages)
Specifications of PIC18F4420-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4420-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC18F2221-ISO PDF datasheet
- PIC18F2420-IML PDF datasheet #2
- PIC18F2420-IML PDF datasheet #3
- PIC18F2420-IML PDF datasheet #4
- PIC18F2420-IML PDF datasheet #5
- PIC18F2420-IML PDF datasheet #6
- PIC18F2420-IML PDF datasheet #7
- Current page: 119 of 412
- Download datasheet (7Mb)
10.5
Depending on the particular PIC18F2420/2520/4420/
4520 device selected, PORTE is implemented in two
different ways.
For 40/44-pin devices, PORTE is a 4-bit wide port.
Three pins (RE0/RD/AN5, RE1/WR/AN6 and RE2/CS/
AN7) are individually configurable as inputs or outputs.
These pins have Schmitt Trigger input buffers. When
selected as an analog input, these pins will read as ‘0’s.
The corresponding Data Direction register is TRISE.
Setting a TRISE bit (= 1) will make the corresponding
PORTE pin an input (i.e., put the corresponding output
driver in a high-impedance mode). Clearing a TRISE bit
(= 0) will make the corresponding PORTE pin an output
(i.e., put the contents of the output latch on the selected
pin).
TRISE controls the direction of the RE pins, even when
they are being used as analog inputs. The user must
make sure to keep the pins configured as inputs when
using them as analog inputs.
The upper four bits of the TRISE register also control
the operation of the Parallel Slave Port. Their operation
is explained in Register 10-1.
The Data Latch register (LATE) is also memory
mapped. Read-modify-write operations on the LATE
register, read and write the latched output value for
PORTE.
© 2008 Microchip Technology Inc.
Note:
PORTE, TRISE and LATE
Registers
On a Power-on Reset, RE<2:0> are
configured as analog inputs.
PIC18F2420/2520/4420/4520
The fourth pin of PORTE (MCLR/V
only pin. Its operation is controlled by the MCLRE Con-
figuration bit. When selected as a port pin (MCLRE = 0),
it functions as a digital input only pin; as such, it does not
have TRIS or LAT bits associated with its operation.
Otherwise, it functions as the device’s Master Clear
input. In either configuration, RE3 also functions as the
programming voltage input during programming.
EXAMPLE 10-5:
10.5.1
For 28-pin devices, PORTE is only available when
Master Clear functionality is disabled (MCLRE = 0). In
these cases, PORTE is a single bit, input only port com-
prised of RE3 only. The pin operates as previously
described.
CLRF
CLRF
MOVLW
MOVWF
MOVLW
MOVWF
Note:
PORTE
LATE
0Ah
ADCON1 ; for digital inputs
03h
TRISE
On a Power-on Reset, RE3 is enabled as
a digital input only if Master Clear
functionality is disabled.
PORTE IN 28-PIN DEVICES
; Initialize PORTE by
; clearing output
; data latches
; Alternate method
; to clear output
; data latches
; Configure A/D
; Value used to
; initialize data
; direction
; Set RE<0> as inputs
; RE<1> as outputs
; RE<2> as inputs
INITIALIZING PORTE
PP
DS39631E-page 117
/RE3) is an input
Related parts for PIC18F4420-E/PT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC18F442-I/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX16 EE A/D 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-I/PT](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX16 EE A/D 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-I/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX16 EE A/D 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-I/ML](/photos/6/81/68122/150-44-qfn_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX16 EE A/D 44QFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-I/PTG](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC PIC MCU FLASH 8KX16 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-E/P](/photos/6/61/66192/150-40-dip_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 40MHZ 8K FLASH 40DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-E/PT](/photos/6/82/68251/c04-076_pt_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 40MHZ 8K FLSH 44TQFP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-E/L](/photos/6/63/66325/150-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU CMOS 40MHZ 8K FLSH 44PLCC
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F442-E/ML](/photos/6/81/68122/150-44-qfn_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8KX16 EE A/D 44QFN
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6393T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6493T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8393T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8493T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6585-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6680-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet: