PIC16F87-E/P Microchip Technology, PIC16F87-E/P Datasheet - Page 71

• Manufacturer Part Number: PIC16F87-E/P
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,DIP,18PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F87-E/P

• Rohs Compliant: YES
• 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: 18-DIP (0.300", 7.62mm)
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: SSP, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014
• Minimum Operating Temperature: - 40 C
• Data Rom Size: 256 B
• Height: 3.3 mm
• Length: 22.86 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ACICE0202 - ADAPTER MPLABICE 18P 300 MIL
• Data Converters: -
• Lead Free Status / Rohs Status: Details

EXAMPLE 6-1:
TABLE 6-1:
 2005 Microchip Technology Inc.
01h,101h
0Bh,8Bh,
10Bh,18Bh
81h,181h
Legend:
Address
CLRWDT
BANKSEL
MOVLW
MOVWF
x = unknown, u = unchanged. Shaded cells are not used by Timer0.
TMR0
INTCON
OPTION_REG
OPTION_REG
b'xxxx0xxx'
OPTION_REG
Name
REGISTERS ASSOCIATED WITH TIMER0
CHANGING THE PRESCALER ASSIGNMENT FROM WDT TO TIMER0
Timer0 Module Register
RBPU
Bit 7
GIE
; Clear WDT and prescaler
; Select Bank of OPTION_REG
; Select TMR0, new prescale
; value and clock source
INTEDG
PEIE
Bit 6
TMR0IE
T0CS
Bit 5
INT0IE
T0SE
Bit 4
RBIE TMR0IF INT0IF RBIF 0000 000x
Bit 3
PSA
Bit 2
PS2
Bit 1
PS1
PIC16F87/88
Bit 0
PS0
xxxx xxxx
1111 1111
POR, BOR
Value on
DS30487C-page 69
uuuu uuuu
0000 000u
1111 1111
Value on
all other
Resets