PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 411

• 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

Table 22-3: T
Table 22-4: T
2T
8T
32T
RC
Legend: Shaded cells are outside of recommended range.
Note 1: The RC source has a typical T
2T
8T
32T
RC
Legend: Shaded cells are outside of recommended range.
Note 1: The RC source has a typical T
Operation
1997 Microchip Technology Inc.
OSC
OSC
OSC
OSC
Operation
OSC
OSC
AD Clock Source (T
2: These values violate the minimum required T
3: For faster conversion times, the selection of another clock source is recommended.
4: For device frequencies above 1 MHz, the device must be in SLEEP for the entire conversion, or the A/D
2: These values violate the minimum required T
3: For faster conversion times, the selection of another clock source is recommended.
4: For device frequencies above 1 MHz, the device must be in SLEEP for the entire conversion, or the A/D
AD Clock Source (T
accuracy may be out of specification.
accuracy may be out of specification.
AD
AD
00
01
10
11
ADCS1:ADCS0
vs. Device Operating Frequencies, PIC16LC71 ( LC Devices)
vs. Device Operating Frequencies, PIC16C71 ( C Devices)
Section 22. Basic 8-bit A/D Converter
00
01
10
11
ADCS1:ADCS0
AD
)
AD
)
100 ns
400 ns
1.6 s
2 - 6 s
20 MHz
500 ns
2.0 s
8.0 s
3 - 9 s
AD
AD
(2)
(2)
(2)
(1,4)
time of 4 s.
time of 6 s.
4 MHz
(2)
(2)
(1,4)
125 ns
500 ns
2.0 s
2 - 6 s
AD
AD
16 MHz
time.
time.
(2)
(2)
(1,4)
1.0 s
4.0 s
16.0 s
3 - 9 s
2 MHz
(2)
Device Frequency
(1,4)
500 ns
2.0 s
8.0 s
2 - 6 s
Device Frequency
4 MHz
(2)
(1,4)
1.6 s
6.4 s
25.6 s
3 - 9 s
1.25 MHz
2.0 s
8.0 s
32.0 s
2 - 6 s
(2)
(3)
(1,4)
1 MHz
(3)
(1)
DS31022A-page 22-9
6 s
24 s
96 s
3 - 9 s
6 s
24 s
96 s
2 - 6 s
333.33 kHz
333.33 kHz
(3)
(3)
(1)
(3)
(3)
(1)
22