PIC16F887-E/P Microchip Technology Inc., PIC16F887-E/P Datasheet - Page 212
PIC16F887-E/P
Manufacturer Part Number
PIC16F887-E/P
Description
40 PIN, 14KB FLASH, 368 RAM, 36 I/O, PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F887-EP.pdf
(328 pages)
Specifications of PIC16F887-E/P
A/d Inputs
14-Channel, 10-Bit
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
256 Bytes
Frequency
20 MHz
Input Output
35
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
14K Bytes
Ram Size
368 Bytes
Resistance, Drain To Source On
Bytes
Serial Interface
MSSP or EUSART
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC16F882/883/884/886/887
14.1
The Configuration bits can be programmed (read as
‘0’), or left unprogrammed (read as ‘1’) to select various
device configurations as shown in Register 14-1.
These bits are mapped in program memory location
2007h and 2008h, respectively.
REGISTER 14-1:
DS41291E-page 210
bit 15
bit 7
bit 15-14
bit 13
bit 12
bit 11
bit 10
bit 9-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
Note
CPD
—
1:
2:
3:
4:
Configuration Bits
Enabling Brown-out Reset does not automatically enable Power-up Timer.
The entire data EEPROM will be erased when the code protection is turned off.
The entire program memory will be erased when the code protection is turned off.
When MCLR is asserted in INTOSC or RC mode, the internal clock oscillator is disabled.
Unimplemented: Read as ‘1’
DEBUG: In-Circuit Debugger Mode bit
1 = In-Circuit Debugger disabled, RB6/ICSPCLK and RB7/ICSPDAT are general purpose I/O pins
0 = In-Circuit Debugger enabled, RB6/ICSPCLK and RB7/ICSPDAT are dedicated to the debugger
LVP: Low Voltage Programming Enable bit
1 =
0 =
FCMEN: Fail-Safe Clock Monitor Enabled bit
1 = Fail-Safe Clock Monitor is enabled
0 = Fail-Safe Clock Monitor is disabled
IESO: Internal External Switchover bit
1 = Internal/External Switchover mode is enabled
0 = Internal/External Switchover mode is disabled
BOREN<1:0>: Brown-out Reset Selection bits
11 = BOR enabled
10 = BOR enabled during operation and disabled in Sleep
01 = BOR controlled by SBOREN bit of the PCON register
00 = BOR disabled
CPD: Data Code Protection bit
1 = Data memory code protection is disabled
0 = Data memory code protection is enabled
CP: Code Protection bit
1 = Program memory code protection is disabled
0 = Program memory code protection is enabled
MCLRE: RE3/MCLR pin function select bit
1 = RE3/MCLR pin function is MCLR
0 = RE3/MCLR pin function is digital input, MCLR internally tied to V
PWRTE: Power-up Timer Enable bit
1 = PWRT disabled
0 = PWRT enabled
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled and can be enabled by SWDTEN bit of the WDTCON register
FOSC<2:0>: Oscillator Selection bits
111 = RC oscillator: CLKOUT function on RA6/OSC2/CLKOUT pin, RC on RA7/OSC1/CLKIN
110 = RCIO oscillator: I/O function on RA6/OSC2/CLKOUT pin, RC on RA7/OSC1/CLKIN
101 = INTOSC oscillator: CLKOUT function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN
100 = INTOSCIO oscillator: I/O function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN
011 = EC: I/O function on RA6/OSC2/CLKOUT pin, CLKIN on RA7/OSC1/CLKIN
010 = HS oscillator: High-speed crystal/resonator on RA6/OSC2/CLKOUT and RA7/OSC1/CLKIN
001 = XT oscillator: Crystal/resonator on RA6/OSC2/CLKOUT and RA7/OSC1/CLKIN
000 = LP oscillator: Low-power crystal on RA6/OSC2/CLKOUT and RA7/OSC1/CLKIN
RB3/PGM pin has PGM function, low voltage programming enabled
RB3 pin is digital I/O, HV on MCLR must be used for programming
CP
—
CONFIG1: CONFIGURATION WORD REGISTER 1
DEBUG
MCLRE
(3)
(2)
PWRTE
(4)
LVP
(1)
FCMEN
WDTE
Note:
DD
user program memory space. It belongs to
the special configuration memory space
(2000h-3FFFh), which can be accessed
only during programming. See “PIC16F88X
Memory
(DS41287) for more information.
Address 2007h and 2008h are beyond the
FOSC2
IESO
Programming
© 2008 Microchip Technology Inc.
BOREN1
FOSC1
Specification”
BOREN0
FOSC0
bit 8
bit 0
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