PIC16F876A-E/SS Microchip Technology, PIC16F876A-E/SS Datasheet - Page 431

• Manufacturer Part Number: PIC16F876A-E/SS
• Description: 28 PIN, 14KB ENH FLASH, 368 RAM, 22 I/O,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F876A-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 14KB (8K x 14)
• 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 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 1 x 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.6
1997 Microchip Technology Inc.
Configuring Analog Port Pins
The ADCON1 and 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, any pin configured as an analog input channel will
Note 2: Analog levels on any pin that is defined as a digital input (including the AN7:AN0
Section 23. 10-bit A/D Converter
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.
Preliminary
OH
or V
OL
) will be converted.
DS31023A-page 23-9
23