PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 53

• 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

Figure 3-1: Simplified Block Diagram of a Super-set On-chip Reset Circuit
Note 1: This is a separate oscillator from the RC oscillator of the CLKIN pin or the INTRC oscillator.
1997 Microchip Technology Inc.
OSC1/
CLKIN
MCLR / V
MCLRE
Enable
V
I/O Pull-up
Pin
DD
2: Features in dashed boxes not available on all devices, see device’s Data Sheet.
3: In some devices, this pin may be configured as a general purpose Input.
4: The early PICmicro devices have the configuration bit defined as PWRTE = 1 is enabled, while all other
On-chip
devices the configuration bit is defined as PWRTE = 0 is enabled.
PP
RC OSC
OST/PWRT
Pin
Brown-out
Program
Memory
V
Module
(3)
(1)
Parity
detect
WDT
DD
Reset
rise
OST
PWRT
V
DD
Weak Pull-up
10-bit Ripple-counter
10-bit Ripple-counter
WDT Time-out
Power-on Reset
MPEEN
BODEN
SLEEP
MCLRE
(2)
(2)
(2)
(2)
Enable PWRT
Enable OST
(4)
See
Section 3. Reset
Table 3-1
for time-out situations.
S
R
DS31003A-page 3-3
Q
Chip_Reset
3