PIC16F874-20/P Microchip Technology, PIC16F874-20/P Datasheet - Page 627

• Manufacturer Part Number: PIC16F874-20/P
• Description: IC MCU FLASH 4KX14 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874-20/P

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 40-DIP (0.600", 15.24mm)
• 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: 33
• Eeprom Size: 128 x 8
• Ram Size: 192 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
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 192 B
• Interface Type: MSSP/PSP/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 70 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, DM163022, DV164120
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8-ch x 10-bit
• 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

31.3.3
1997 Microchip Technology Inc.
RC Oscillator Frequency
These tables show the effects of the RC oscillator frequency as the device voltage varies. In
these measurements a capacitor and resistor value are selected and then the frequency of the
RC is measured as the device voltage varies. The table shows the typical frequency for a R and
C value at 5V, as well as the variation from this frequency that can be expected due to device
processing.
Figure 31-22: Example Typical RC Oscillator Frequency vs. V
Figure 31-23: Example Typical RC Oscillator Frequency vs. V
Section 31. Device Characteristics
Shaded area is beyond recommended range.
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.5
2.5
3.0
3.0
3.5
3.5
C
C
EXT
EXT
4.0
V
= 100 pF, T = 25 C
= 22 pF, T = 25 C
4.0
V
DD
DD
(Volts)
(Volts)
4.5
4.5
5.0
5.0
DD
DD
R = 10k
R = 100k
R = 5k
R = 100k
R = 5k
R = 10k
R = 3.3k
5.5
5.5
DS31031A-page 31-15
6.0
6.0
31