PIC16F87-I/ML Microchip Technology, PIC16F87-I/ML Datasheet - Page 71

• Manufacturer Part Number: PIC16F87-I/ML
• Description: IC MCU FLASH 4KX14 EEPROM 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F87-I/ML

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 16
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28QFN3 - SOCKET TRAN ICE 18DIP/28QFNAC164322 - MODULE SOCKET MPLAB PM3 28/44QFNAC164033 - ADAPTER 28QFN TO 18DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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