PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 76

• 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

PICmicro MID-RANGE MCU FAMILY
Table 4-1:
DS31004A-page 4-8
COM0
COM1
COM2
COM3
CS
DT
GP0
GP1
GP2
GP3
GP4
GP5
INT
MCLR/V
NC
OSC1
OSC2
PBTN
PSP0
PSP1
PSP2
PSP3
PSP4
PSP5
PSP6
PSP7
RA0
RA1
RA2
RA3
RA4
RA5
Legend: TTL = TTL-compatible input
Pin Name
PP
ST = Schmitt Trigger input with CMOS levels
SM = SMBus compatible input. An external resistor is required if this pin is used as an output
NPU = N-channel pull-up
No-P diode = No P-diode to V
I = input
P = Power
I/O Descriptions (Cont.’d)
Type
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/P
—
O
L
L
L
L
I
I
I
I
I
ST/CMOS
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
ST
—
—
—
—
—
—
DD
Description
LCD Common Driver0
LCD Common Driver1
LCD Common Driver2
LCD Common Driver3
chip select control for parallel slave port (See related RD and WR)
USART Synchronous Data. Always associated RX pin function. (See
related RX, TX, CK)
GP is a bi-directional I/O port. Some pins of port GP can be software
programmed for internal weak pull-ups on the inputs.
TTL input buffer as general purpose I/O, Schmitt Trigger input buffer
when used as the serial programming mode.
TTL input buffer as general purpose I/O, Schmitt Trigger input buffer
when used as the serial programming mode.
External Interrupt
Master clear (reset) input or programming voltage input. This pin is
an active low reset to the device.
These pins should be left unconnected.
Oscillator crystal input or external clock source input. ST buffer when
configured in RC mode. CMOS otherwise.
Oscillator crystal output. Connects to crystal or resonator in crystal
oscillator mode. In RC mode, OSC2 pin outputs CLKOUT which has
1/4 the frequency of OSC1, and denotes the instruction cycle rate.
Input with weak pull-up resistor, can be used to generate an interrupt.
Parallel Slave Port for interfacing to a microprocessor port. These
pins have TTL input buffers when PSP module is enabled.
PORTA is a bi-directional I/O port.
RA4 is an open drain when configured as output.
CMOS = CMOS compatible input or output
PU = Weak internal pull-up
AN = Analog input or output
O = output
L = LCD Driver
1997 Microchip Technology Inc.