PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 393

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.6
1997 Microchip Technology Inc.
Configuring Analog Port Pins
ADCON1 and the corresponding TRIS registers control the operation of the A/D port pins. The
port pins that are desired as analog inputs must have their corresponding TRIS bits set (input).
If the TRIS bit is cleared (output), the digital output level (V
The A/D operation is independent of the state of the CHS2:CHS0 bits and the TRIS bits.
Note 1: When reading the port register, all pins configured as analog input channels will
Note 2: Analog levels on any pin that is defined as a digital input (including the AN7:AN0
read as cleared (a low level). Pins configured as digital inputs, will convert an analog
input. Analog levels on a digitally configured input will not affect the conversion
accuracy.
pins), may cause the input buffer to consume current that is out of the devices spec-
ification.
Section 21. 8-bit A/D Converter
OH
or V
OL
) will be converted.
DS31021A-page 21-9
21