PIC18F2331-E/SP Microchip Technology, PIC18F2331-E/SP Datasheet - Page 133
![IC MCU FLASH 4KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2331-E/SP
Manufacturer Part Number
PIC18F2331-E/SP
Description
IC MCU FLASH 4KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18F2331-E/SP
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
24
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 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
24
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4431 - BOARD DAUGHTER ICEPIC3AC164035 - MODULE SKT FOR 18F2X31 28SOICDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18F4331-EP PDF datasheet #7
- Current page: 133 of 400
- Download datasheet (7Mb)
10.5
PORTE is a 4-bit wide bidirectional port. Three pins
(RE0/AN6, RE1/AN67 and RE2/AN8) 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 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.
© 2007 Microchip Technology Inc.
Note:
Note:
PORTE, TRISE and LATE
Registers
On a Power-on Reset, RE2:RE0 are
configured as analog inputs.
PORTE is only available on PIC18F4331/
4431 devices.
PIC18F2331/2431/4331/4431
Preliminary
The fourth pin of PORTE (MCLR/V
only pin. Its operation is controlled by the MCLRE
Configuration
(CONFIG3H<7>). 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 PIC18F2331/2431 devices, PORTE is only
available when master clear functionality is disabled
(CONFIG3H<7> = 0). In these cases, PORTE is a
single bit, input-only port comprised of RE3 only. The
pin operates as previously described.
CLRF
CLRF
MOVLW
MOVWF
BCF
MOVLW
MOVWF
Note:
PORTE
LATE
0x3F
ANSEL0
ANSEL1, 0
0x03
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
bit
in
INITIALIZING PORTE
; Initialize PORTE by
; clearing output
; data latches
; Alternate method
; to clear output
; data latches
; Configure A/D
; for digital inputs
;
; Value used to
; initialize data
; direction
; Set RE<0> as input
; RE<1> as output
; RE<2> as input
Configuration
PP
DS39616C-page 131
/RE3) is an input
Register
3H
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