PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 79

• 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 4-1:
V
V
V
VLCDADJ
V
V
V
VREG
V
V
WR
Legend: TTL = TTL-compatible input
1997 Microchip Technology Inc.
LCD
LCD
LCD
REF
REF
REF
SS
DD
Pin Name
1
2
3
+
-
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
O
P
P
P
P
P
I
I
I
I
I
Analog
Analog
Analog
Analog
Buffer
Type
TTL
—
—
—
—
—
—
DD
Description
LCD Voltage
LCD Voltage
LCD Voltage
LCD Voltage Generation
Analog High Voltage Reference input.
DR reference voltage output on devices with comparators.
Analog High Voltage Reference input.
Usually multiplexed onto an analog pin.
Analog Low Voltage Reference input.
Usually multiplexed onto an analog pin.
This pin is an output to control the gate of an external N-FET
for voltage regulation.
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
Write control for parallel slave port (See CS and RD pins also).
Section 4. Architecture
CMOS = CMOS compatible input or output
PU = Weak internal pull-up
AN = Analog input or output
O = output
L = LCD Driver
DS31004A-page 4-11
4