PIC16F887-I/P Microchip Technology, PIC16F887-I/P Datasheet - Page 61
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PIC16F887-I/P
Manufacturer Part Number
PIC16F887-I/P
Description
IC PIC MCU FLASH 8KX14 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.MCP1631RD-MCC2.pdf
(328 pages)
3.PIC16F882-ISS.pdf
(16 pages)
4.PIC16F882-ISS.pdf
(36 pages)
5.PIC16F883-ISO.pdf
(288 pages)
Specifications of PIC16F887-I/P
Program Memory Type
FLASH
Program Memory Size
14KB (8K x 14)
Package / Case
40-DIP (0.600", 15.24mm)
Mfg Application Notes
Intro to Capacitive Sensing Appl Notes Layout and Physical Design Appl Note
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Eeprom Size
256 x 8
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
MSSP/EUSART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
35
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 53273-916
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM164123, DM164120-3, DV164122
Minimum Operating Temperature
- 40 C
On-chip Adc
14-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LD444-1001 - DEMO BOARD FOR PICMICRO MCU
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F887-I/P
Manufacturer:
MICROCHIP
Quantity:
16
Part Number:
PIC16F887-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC16F887-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
3.7
PORTE
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.,
enable the output driver and put the contents of the
output latch on the selected pin). The exception is RE3,
which is input only and its TRIS bit will always read as
‘1’. Example 3-6 shows how to initialize PORTE.
Reading the PORTE register (Register 3-13) reads the
status of the pins, whereas writing to it will write to the
PORT latch. All write operations are read-modify-write
operations. Therefore, a write to a port implies that the
port pins are read, this value is modified and then
written to the PORT data latch. RE3 reads ‘0’ when
MCLRE = 1.
REGISTER 3-13:
REGISTER 3-14:
© 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-0
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-0
Note 1:
Note 1: RE<2:0>
U-0
U-0
—
—
(1)
PORTE and TRISE Registers
is a 4-bit wide, bidirectional port. The
TRISE<3> always reads ‘1’.
PIC16F884/887 only.
Unimplemented: Read as ‘0’
RD<3:0>: PORTE General Purpose I/O Pin bit
1 = Port pin is > V
0 = Port pin is < V
Unimplemented: Read as ‘0’
TRISE<3:0>: PORTE Tri-State Control bit
1 = PORTE pin configured as an input (tri-stated)
0 = PORTE pin configured as an output
U-0
U-0
—
—
PORTE: PORTE REGISTER
TRISE: PORTE TRI-STATE REGISTER
pins
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
are
IH
IL
U-0
U-0
—
—
available
PIC16F882/883/884/886/887
U-0
U-0
—
—
on
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
‘0’ = Bit is cleared
TRISE3
R-1
The TRISE register (Register 3-14) controls the PORTE
pin output drivers, even when they are being used as
analog inputs. The user should ensure the bits in the
TRISE register are maintained set when using them as
analog inputs. I/O pins configured as analog input always
read ‘0’.
EXAMPLE 3-6:
RE3
BANKSEL PORTE
CLRF
BANKSEL ANSEL
CLRF
BCF
BANKSEL TRISE
MOVLW
MOVWF
R-x
Note:
(1)
PORTE
ANSEL
STATUS,RP1
B‘00001100’
TRISE
The ANSEL register must be initialized to
configure an analog channel as a digital
input. Pins configured as analog inputs will
read ‘0’.
TRISE2
R/W-x
R/W-1
RE2
INITIALIZING PORTE
;
;Init PORTE
;
;digital I/O
;Bank 1
;
;Set RE<3:2> as inputs
;and set RE<1:0>
;as outputs
x = Bit is unknown
x = Bit is unknown
TRISE1
R/W-x
R/W-1
RE1
DS41291F-page 59
TRISE0
R/W-1
R/W-x
RE0
bit 0
bit 0