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PDF PIC16F819 Data sheet ( Hoja de datos )
| Número de pieza | PIC16F819 | |
| Descripción | 18/20-Pin Enhanced Flash Microcontrollers | |
| Fabricantes | Microchip Technology | |
| Logotipo |  |
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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
1 page  
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
5 Page 
PIC16F818/819
FIGURE 2-3:
PIC16F818 REGISTER FILE MAP
File
Address
Indirect addr.(*) 00h
TMR0
01h
PCL 02h
STATUS 03h
FSR
04h
PORTA
05h
PORTB 06h
07h
08h
09h
PCLATH 0Ah
INTCON 0Bh
PIR1
0Ch
PIR2
0Dh
TMR1L
0Eh
TMR1H 0Fh
T1CON
10h
TMR2
11h
T2CON
12h
SSPBUF 13h
SSPCON 14h
CCPR1L 15h
CCPR1H 16h
CCP1CON 17h
18h
19h
1Ah
1Bh
1Ch
1Dh
ADRESH 1Eh
ADCON0 1Fh
20h
General
Purpose
Register
96 Bytes
File
Address
File
Address
Indirect addr.(*) 80h
OPTION_REG 81h
PCL 82h
STATUS 83h
FSR
84h
TRISA
85h
TRISB
86h
87h
88h
89h
PCLATH 8Ah
INTCON 8Bh
PIE1
PIE2
8Ch
8Dh
PCON
OSCCON
8Eh
8Fh
OSCTUNE 90h
91h
PR2 92h
SSPADD 93h
SSPSTAT 94h
95h
96h
97h
98h
99h
9Ah
9Bh
9Ch
ADRESL
9Dh
9Eh
ADCON1 9Fh
General
Purpose
Register
A0h
32 Bytes
BFh
C0h
Accesses
40h-7Fh
Indirect addr.(*)
TMR0
PCL
STATUS
FSR
PORTB
PCLATH
INTCON
EEDATA
EEADR
EEDATH
EEADRH
100h
101h
102h
103h
104h
105h
106h
107h
108h
109h
10Ah
10Bh
10Ch
10Dh
10Eh
10Fh
110h
11Fh
120h
Accesses
20h-7Fh
File
Address
Indirect addr.(*)
OPTION_REG
PCL
STATUS
FSR
TRISB
PCLATH
INTCON
EECON1
EECON2
Reserved(1)
Reserved(1)
180h
181h
182h
183h
184h
185h
186h
187h
188h
189h
18Ah
18Bh
18Ch
18Dh
18Eh
18Fh
190h
19Fh
1A0h
Accesses
20h-7Fh
Bank 0
7Fh
Bank 1
FFh
Bank 2
17Fh
Unimplemented data memory locations, read as ‘0’.
* Not a physical register.
Note 1: These registers are reserved; maintain these registers clear.
Bank 3
1FFh
2001-2013 Microchip Technology Inc.
DS39598F-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PIC16F819.PDF ] | |
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