PIC16F870T-I/SS Microchip Technology, PIC16F870T-I/SS Datasheet - Page 36

• Manufacturer Part Number: PIC16F870T-I/SS
• Description: IC MCU FLASH 2KX14 EE 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F870T-I/SS

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• 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 ~ 85°C
• Package / Case: 28-SSOP
• For Use With: I3-DB16F871 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F870/871
TABLE 4-1:
TABLE 4-2:
DS30569B-page 34
05h
85h
9Fh
Legend:
Address
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/AN4
Legend: TTL = TTL input, ST = Schmitt Trigger input
Name
PORTA
TRISA
ADCON1 ADFM
x = unknown, u = unchanged, - = unimplemented locations read as '0'.
Shaded cells are not used by PORTA.
REF
Name
PORTA FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Bit 7
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
—
—
Bit 6
—
—
—
Buffer
TTL
TTL
TTL
TTL
TTL
ST
PORTA Data Direction Register
Bit 5
RA5
—
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 analog input.
Bit 4
RA4
—
PCFG3 PCFG2 PCFG1 PCFG0 --0- 0000 --0- 0000
Bit 3
RA3
Bit 2
RA2
Bit 1
RA1
Function
REF.
Bit 0
RA0
 2003 Microchip Technology Inc.
--0x 0000 --0u 0000
--11 1111 --11 1111
POR, BOR
Value on:
Value on
RESETS
all other