PIC16F819 Datasheet PDF - Microchip Technology
Part Number | PIC16F819 | |
Description | 18/20-Pin Enhanced Flash Microcontrollers | |
Manufacturers | Microchip Technology | |
Logo | ||
There is a preview and PIC16F819 download ( pdf file ) link at the bottom of this page. Total 30 Pages |
Preview 1 page No Preview Available ! PIC16F818/819
18/20-Pin Enhanced Flash Microcontrollers
with nanoWatt Technology
Low-Power Features:
• Power-Managed modes:
- Primary Run: XT, RC oscillator,
87 A, 1 MHz, 2V
- INTRC: 7 A, 31.25 kHz, 2V
- Sleep: 0.2 A, 2V
• Timer1 oscillator: 1.8 A, 32 kHz, 2V
• Watchdog Timer: 0.7 A, 2V
• Wide operating voltage range:
- Industrial: 2.0V to 5.5V
Oscillators:
• Three Crystal modes:
- LP, XT, HS: up to 20 MHz
• Two External RC modes
• One External Clock mode:
- ECIO: up to 20 MHz
• Internal oscillator block:
- 8 user selectable frequencies: 31 kHz, 125 kHz,
250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz, 8 MHz
Peripheral Features:
• 16 I/O pins with individual direction control
• High sink/source current: 25 mA
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler, can be
incremented during Sleep via external crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Capture, Compare, PWM (CCP) module:
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
• 10-bit, 5-channel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with
SPI (Master/Slave) and I2C™ (Slave)
Pin Diagram
18-Pin PDIP, SOIC
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/AN4/T0CKI
RA5/MCLR/VPP
VSS
RB0/INT
RB1/SDI/SDA
RB2/SDO/CCP1
RB3/CCP1/PGM
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
RA1/AN1
RA0/AN0
RA7/OSC1/CLKI
RA6/OSC2/CLKO
VDD
RB7/T1OSI/PGD
RB6/T1OSO/T1CKI/PGC
RB5/SS
RB4/SCK/SCL
Special Microcontroller Features:
• 100,000 erase/write cycles Enhanced Flash
program memory typical
• 1,000,000 typical erase/write cycles EEPROM
data memory typical
• EEPROM Data Retention: > 40 years
• In-Circuit Serial ProgrammingTM (ICSPTM) via two pins
• Processor read/write access to program memory
• Low-Voltage Programming
• In-Circuit Debugging via two pins
Device
PIC16F818
PIC16F819
Program Memory
Flash # Single-Word
(Bytes) Instructions
Data Memory
SRAM EEPROM I/O Pins
(Bytes) (Bytes)
10-bit
A/D (ch)
1792
3584
1024
2048
128 128
256 256
16
16
5
5
CCP
(PWM)
1
1
SSP
SPI
Slave
I2C™
Timers
8/16-bit
YY
YY
2/1
2/1
2001-2013 Microchip Technology Inc.
DS39598F-page 1
|
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1.0 DEVICE OVERVIEW
This document contains device specific information for
the operation of the PIC16F818/819 devices. Additional
information may be found in the “PIC® Mid-Range MCU
Family Reference Manual” (DS33023) which may be
downloaded from the Microchip web site. The Reference
Manual should be considered a complementary docu-
ment to this data sheet and is highly recommended
reading for a better understanding of the device architec-
ture and operation of the peripheral modules.
The PIC16F818/819 belongs to the Mid-Range family
of the PIC® devices. The devices differ from each other
in the amount of Flash program memory, data memory
and data EEPROM (see Table 1-1). A block diagram of
the devices is shown in Figure 1-1. These devices con-
tain features that are new to the PIC16 product line:
• Internal RC oscillator with eight selectable
frequencies, including 31.25 kHz, 125 kHz,
250 kHz, 500 kHz, 1 MHz, 2 MHz, 4 MHz and
8 MHz. The INTRC can be configured as the
system clock via the configuration bits. Refer to
Section 4.5 “Internal Oscillator Block” and
Section 12.1 “Configuration Bits” for further
details.
• The Timer1 module current consumption has
been greatly reduced from 20 A (previous PIC16
devices) to 1.8 A typical (32 kHz at 2V), which is
ideal for real-time clock applications. Refer to
Section 6.0 “Timer0 Module” for further details.
• The amount of oscillator selections has increased.
The RC and INTRC modes can be selected with
an I/O pin configured as an I/O or a clock output
(FOSC/4). An external clock can be configured
with an I/O pin. Refer to Section 4.0 “Oscillator
Configurations” for further details.
TABLE 1-1: AVAILABLE MEMORY IN
PIC16F818/819 DEVICES
Device
Program
Flash
Data
Memory
Data
EEPROM
PIC16F818 1K x 14
128 x 8
128 x 8
PIC16F818/819
Device
Program
Flash
Data
Memory
Data
EEPROM
PIC16F819 2K x14
256 x 8
256 x 8
There are 16 I/O pins that are user configurable on a
pin-to-pin basis. Some pins are multiplexed with other
device functions. These functions include:
• External Interrupt
• Change on PORTB Interrupt
• Timer0 Clock Input
• Low-Power Timer1 Clock/Oscillator
• Capture/Compare/PWM
• 10-bit, 5-channel Analog-to-Digital Converter
• SPI/I2C
• MCLR (RA5) can be configured as an Input
Table 1-2 details the pinout of the devices with
descriptions and details for each pin.
2001-2013 Microchip Technology Inc.
DS39598F-page 5
Preview 5 Page |
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Information | Total 30 Pages | |
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