PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 406

• 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

PICmicro MID-RANGE MCU FAMILY
Register 22-2:
DS31022A-page 22-4
bit 7:2
bit 1:0
bit 2:0
ADCON1 Register
bit 7
Unimplemented: Read as '0'
PCFG1:PCFG0: A/D Port Configuration Control bits
PCFG2:PCFG0: A/D Port Configuration Control bits
Legend
R = Readable bit
U = Unimplemented bit, read as ‘0’
Note 1: Some devices add an additional Port configuration bit (PCFG2). This allows the min-
Note 2: On any device reset, the Port pins multiplexed with analog functions (ANx) are
Note:
U-0
A = Analog input
D = Digital I/O
A = Analog input
D = Digital I/O
—
Note:
Note:
PCFG1:PCFG0
PCFG2:PCFG0
000
001
010
011
100
101
110
111
imum number of analog channels to be one. This is of most benefit to the 8-pin
devices with the A/D converter, since in an 8-pin device I/O is a premium resource.
In the other devices this bit is unimplemented, and read as ‘0’.
forced to be an analog input.
Some devices implement bit2 as the PCFG2 bit.
00
01
10
11
U-0
—
When AN3 is selected as V
pin. When AN3 is selected as an analog input (A), then the voltage reference for
the A/D is the device V
When AN1 is selected as V
pin. When AN1 is selected as an analog input (A), then the voltage reference for
the A/D is the device V
W = Writable bit
U-0
—
V
AN3
AN3
REF
A
D
D
A
A
D
D
D
D
D
D
+
U-0
—
DD
DD
AN2
AN2
.
.
A
A
D
D
A
A
A
A
D
D
D
D
- n = Value at POR reset
REF
REF
U-0
—
+, the A/D reference is the voltage on the AN3
+, the A/D reference is the voltage on the AN1
V
V
V
— / PCFG2
AN1
AN1
REF
REF
REF
U-0 / R/W-0
D
D
D
A
A
A
A
A
A
(1)
+
+
+
AN0
AN0
(1)
D
D
A
A
A
A
A
A
A
A
A
A
1997 Microchip Technology Inc.
PCFG1
R/W-0
bit 0
PCFG0
R/W-0