PIC16F887-E/P Microchip Technology Inc., PIC16F887-E/P Datasheet - Page 74

• Manufacturer Part Number: PIC16F887-E/P
• Description: 40 PIN, 14KB FLASH, 368 RAM, 36 I/O, PDIP
• Manufacturer: Microchip Technology Inc.

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

PIC16F882/883/884/886/887
FIGURE 4-9:
TABLE 4-2:
DS41291E-page 72
CONFIG1
OSCCON
OSCTUNE
PIE2
PIR2
Legend:
Note 1:
Clock Monitor Output
Name
2:
Sample Clock
Note:
(2)
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by oscillators.
Other (non Power-up) Resets include MCLR Reset and Watchdog Timer Reset during normal operation.
See Configuration Word Register 1 (Register 14-1) for operation of all register bits.
OSCFIF
System
OSFIE
OSFIF
Output
Bit 7
CPD
Clock
—
—
(Q)
SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
The system clock is normally at a much higher frequency than the sample clock. The relative frequencies in
this example have been chosen for clarity.
FSCM TIMING DIAGRAM
IRCF2
Bit 6
C2IE
C2IF
CP
—
MCLRE
IRCF1
C1IE
C1IF
Bit 5
—
Test
PWRTE
IRCF0
TUN4
EEIE
EEIF
Bit 4
WDTE
BCLIE
BCLIF
OSTS
TUN3
Bit 3
ULPWUIE
ULPWUIF
FOSC2
TUN2
Bit 2
HTS
Test
Oscillator
Failure
FOSC1
TUN1
Bit 1
LTS
—
—
CCP2IE
CCP2IF
FOSC0
TUN0
Bit 0
SCS
© 2008 Microchip Technology Inc.
Detected
-110 x000
---0 0000
0000 00-0
0000 00-0
POR, BOR
Failure
Value on
—
Test
-110 x000
---u uuuu
0000 00-0
0000 00-0
Resets
Value on
all other
—
(1)