PIC16F87-E/SS Microchip Technology, PIC16F87-E/SS Datasheet - Page 15

• Manufacturer Part Number: PIC16F87-E/SS
• Description: IC MCU FLASH 4KX14 EEPROM 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F87-E/SS

• 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: 16
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

REGISTER 4-1:
 2010 Microchip Technology Inc.
bit 13
bit 13
bit 12
bit 11
bit 10-9
bit 8
bit 7
bit 6
bit 5
bit 3
bit 2
bit 4, 1-0 FOSC2:FOSC0: Oscillator Selection bits
Legend:
R = Readable bit
-n = Value at POR
CP
CCPMX DEBUG WRT1
CP:
1 = Code protection off
0 = 0000h to 0FFFh code protected (all protected)
CCPMX: CCP Mux bit
1 = CCP1 function on RB0
0 = CCP1 function on RB3
DEBUG: In-Circuit Debugger Mode bit
1 = In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
0 = In-Circuit Debugger enabled, RB6 and RB7 are dedicated to the debugger
WRT1:WRT0: Flash Program Memory Write Enable bits
11 = Write protection off
10 = 0000h to 00FFh write-protected, 0100h to 0FFFh may be modified by EECON control
01 = 0000h to 07FFh write-protected, 0800h to 0FFFh may be modified by EECON control
00 = 0000h to 0FFFh write-protected
CPD: Data EE Memory Code Protection bit
1
0
LVP: Low-voltage Programming Enable bit
1
0
BOREN: Brown-out Reset Enable bit
1
0
MCLRE: RA5/MCLR Pin Function Select bit
1
0
PWRTEN: Power-up Timer Enable bit
1
0
WDTEN: Watchdog Timer Enable bit
1
0
111
110
101
100
011
010
001
000
= Code protection off
= Data EE memory code-protected
= RB3/PGM pin has PGM function, Low-voltage Programming enabled
= RB3 is digital I/O, HV on MCLR must be used for programming
= BOR enabled
= BOR disabled
= RA5/MCLR pin function is MCLR
= RA5/MCLR pin function is digital I/O, MCLR internally tied to V
= PWRT disabled
= PWRT enabled
= WDT enabled
= WDT disabled
Flash Program Memory Code Protection bits
= EXTRC oscillator; CLKO function on RA6/OSC2/CLKO
= EXTRC oscillator; port I/O function on RA6/OSC2/CLKO
= INTRC oscillator; CLKO function on RA6/OSC2/CLKO
= INTRC oscillator; port I/O function on RA6/OSC2/CLKO
= EXTCLK; port I/O function on RA6/OSC2/CLKO
= HS oscillator
= XT oscillator
= LP oscillator
CONFIGURATION WORD 1 (2007h) REGISTER
WRT0
W = Writable bit
1 = bit is set
CPD
LVP
BOREN MCLRE FOSC2 PWRTEN WDTEN FOSC1 FOSC0
U = Unimplemented bit, read as ‘0’
0 = bit is cleared
DD
PIC16F87/88
x = bit is unknown
DS39607C-page 15
bit 0