PIC16F84A-20/SS Microchip Technology, PIC16F84A-20/SS Datasheet - Page 412

• Manufacturer Part Number: PIC16F84A-20/SS
• Description: IC MCU FLASH 1KX14 EE 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F84A-20/SS

• Core Size: 8-Bit
• Program Memory Size: 1.75KB (1K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 68 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 13
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 68Byte
• Cpu Speed: 20MHz
• No. Of Timers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPI3-DB16F84A - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PICmicro MID-RANGE MCU FAMILY
22.5
DS31022A-page 22-10
Configuring Analog Port Pins
The ADCON1 and TRISA 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 CHS1:CHS0 bits and the TRIS bits.
Note 1: When reading the port register, all pins configured as analog input channel will read
Note 2: Analog levels on any pin that is defined as a digital input (including the AN3:AN0
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.
OH
or V
OL
) will be converted.
1997 Microchip Technology Inc.