PIC16F872-I/SO Microchip Technology, PIC16F872-I/SO Datasheet - Page 32

• Manufacturer Part Number: PIC16F872-I/SO
• Description: IC MCU FLASH 2KX14 EE 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 28-SOIC (7.5mm Width)
• 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
• 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 ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: I2C/SPI/SSP
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 3
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 85 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL309-1073 - ADAPTER 28-SOIC TO 28-SOIC309-1024 - ADAPTER 28-SOIC TO 28-DIP309-1023 - ADAPTER 28-SOIC TO 28-DIP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F872
TABLE 4-1:
TABLE 4-2:
DS30221B-page 30
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
Legend: TTL = TTL input, ST = Schmitt Trigger input
Address
05h
85h
9Fh
Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'.
Note:
Name
Shaded cells are not used by PORTA.
When using the SSP module in SPI Slave mode and SS enabled, the A/D converter must be set to one of
the following modes, where PCFG3:PCFG0 = 0100, 0101, 011x, 1101, 1110, 1111.
PORTA
TRISA
ADCON1 ADFM
REF
Name
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
Bit 7
—
—
Buffer
TTL
TTL
TTL
TTL
TTL
Bit 6
ST
—
—
—
PORTA Data Direction Register
Input/output or analog input.
Input/output or analog input.
Input/output or analog input.
Input/output or analog input or V
Input/output or external clock input for Timer0.
Output is open drain type.
Input/output or slave select input for synchronous serial port or analog input.
Bit 5
RA5
—
Bit 4
RA4
—
PCFG3 PCFG2 PCFG1 PCFG0
Bit 3
RA3
Bit 2
RA2
REF.
Function
Bit 1
RA1
Bit 0
RA0
2002 Microchip Technology Inc.
--0x 0000
--11 1111
--0- 0000
Value on:
POR,
BOR
Value on all
--0u 0000
--11 1111
--0- 0000
RESETS
other