PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 631

• Manufacturer Part Number: PIC16F877-20/P
• Description: IC MCU FLASH 8KX14 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-20/P

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

31.3.5
1997 Microchip Technology Inc.
Crystal Start-up Time
These graphs show the start-up time that one should expect to see at the specified voltage level,
for a given crystal/capacitor combination.
Figure 31-28: Example Typical XTAL Start-up Time vs. V
Figure 31-29: Example Typical XTAL Start-up Time vs. V
Section 31. Device Characteristics
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
7
6
5
4
3
2
1
2.5
4.0
3.0
200 kHz, 15 pF/15 pF
4.5
8 MHz, 33 pF/33 pF
3.5
4.0
V
DD
V
32 kHz, 33 pF/33 pF
DD
(Volts)
5.0
(Volts)
4.5
20 MHz, 33 pF/33 pF
DD
DD
20 MHz, 15 pF/15 pF
8 MHz, 15 pF/15 pF
(LP Mode, 25 C)
(HS Mode, 25 C)
5.0
5.5
5.5
DS31031A-page 31-19
6.0
6.0
31