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PDF 16F873 Data sheet ( Hoja de datos )
| Número de pieza | 16F873 | |
| Descripción | PIC16F873 | |
| Fabricantes | Microchip Technology | |
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Hay una vista previa y un enlace de descarga de 16F873 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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PIC16F87X
28/40-pin 8-Bit CMOS FLASH Microcontrollers
Devices Included in this Data Sheet:
• PIC16F873
• PIC16F874
• PIC16F876
• PIC16F877
Microcontroller Core Features:
• High-performance RISC CPU
• Only 35 single word instructions to learn
• All single cycle instructions except for program
branches which are two cycle
• Operating speed: DC - 20 MHz clock input
DC - 200 ns instruction cycle
• Up to 8K x 14 words of FLASH Program Memory,
Up to 368 x 8 bytes of Data Memory (RAM)
Up to 256 x 8 bytes of EEPROM data memory
• Pinout compatible to the PIC16C73B/74B/76/77
• Interrupt capability (up to 14 sources)
• Eight level deep hardware stack
• Direct, indirect and relative addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT) and
Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
• Low-power, high-speed CMOS FLASH/EEPROM
technology
• Fully static design
• In-Circuit Serial Programming™ (ICSP) via two
pins
• Single 5V In-Circuit Serial Programming capability
• In-Circuit Debugging via two pins
• Processor read/write access to program memory
• Wide operating voltage range: 2.0V to 5.5V
• High Sink/Source Current: 25 mA
• Commercial and Industrial temperature ranges
• Low-power consumption:
- < 2 mA typical @ 5V, 4 MHz
- 20 µA typical @ 3V, 32 kHz
- < 1 µA typical standby current
Pin Diagram
PDIP
MCLR/VPP/THV
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI
RA5/AN4/SS
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
VDD
VSS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RD0/PSP0
RD1/PSP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 RB7/PGD
39 RB6/PGC
38 RB5
37 RB4
36 RB3/PGM
35 RB2
34 RB1
33 RB0/INT
32 VDD
31 VSS
30 RD7/PSP7
29 RD6/PSP6
28 RD5/PSP5
27 RD4/PSP4
26 RC7/RX/DT
25 RC6/TX/CK
24 RC5/SDO
23 RC4/SDI/SDA
22 RD3/PSP3
21 RD2/PSP2
Peripheral Features:
• 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
• Two Capture, Compare, PWM modules
- 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 multi-channel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with SPI™ (Master
Mode) and I2C™ (Master/Slave)
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI) with 9-bit address
detection
• Parallel Slave Port (PSP) 8-bits wide, with
external RD, WR and CS controls (40/44-pin only)
• Brown-out detection circuitry for
Brown-out Reset (BOR)
© 1999 Microchip Technology Inc.
DS30292B-page 1
1 page  
www.DataSheet4U.com
PIC16F87X
1.0 DEVICE OVERVIEW
This document contains device-specific information.
Additional information may be found in the PICmicro™
Mid-Range Reference Manual, (DS33023), which may
be obtained from your local Microchip Sales Represen-
tative or downloaded from the Microchip website. The
Reference Manual should be considered a comple-
mentary document to this data sheet, and is highly rec-
ommended reading for a better understanding of the
device architecture and operation of the peripheral
modules.
There are four devices (PIC16F873, PIC16F874,
PIC16F876 and PIC16F877) covered by this data
sheet. The PIC16F876/873 devices come in 28-pin
packages and the PIC16F877/874 devices come in 40-
pin packages. The 28-pin devices do not have a Paral-
lel Slave Port implemented.
The following two figures are device block diagrams
sorted by pin number; 28-pin for Figure 1-1 and 40-pin
for Figure 1-2. The 28-pin and 40-pin pinouts are listed
in Table 1-1 and Table 1-2, respectively.
FIGURE 1-1: PIC16F873 AND PIC16F876 BLOCK DIAGRAM
Device
PIC16F873
PIC16F876
Program
FLASH
4K
8K
FLASH
Program
Memory
Data Memory
192 Bytes
368 Bytes
Data
EEPROM
128 Bytes
256 Bytes
13
Program Counter
Data Bus
8 Level Stack
(13-bit)
RAM
File
Registers
8
Program
Bus
14
Instruction reg
RAM Addr (1) 9
Addr MUX
Direct Addr 7
Indirect
8 Addr
FSR reg
STATUS reg
8
Instruction
Decode &
Control
OSC1/CLKIN
OSC2/CLKOUT
Timing
Generation
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
In-Circuit
Debugger
Low-Voltage
Programming
3 MUX
ALU
8
W reg
PORTA
PORTB
PORTC
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI
RA5/AN4/SS
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Timer0
Timer1
MCLR VDD, VSS
Timer2
10-bit A/D
Data EEPROM
CCP1,2
Synchronous
Serial Port
Note 1: Higher order bits are from the STATUS register.
© 1999 Microchip Technology Inc.
USART
DS30292B-page 5
5 Page 
www.DataSheet4U.com
2.0 MEMORY ORGANIZATION
There are three memory blocks in each of these
PICmicro MCUs. The Program Memory and Data
Memory have separate buses so that concurrent
access can occur and is detailed in this section. The
EEPROM data memory block is detailed in
Section 4.0.
Additional information on device memory may be found
in the PICmicro™ Mid-Range Reference Manual,
(DS33023).
2.1 Program Memory Organization
The PIC16F87X devices have a 13-bit program counter
capable of addressing an 8K x 14 program memory
space. The PIC16F877/876 devices have 8K x 14
words of FLASH program memory and the PIC16F873/
874 devices have 4K x 14. Accessing a location above
the physically implemented address will cause a wrap-
around.
The reset vector is at 0000h and the interrupt vector is
at 0004h.
FIGURE 2-1: PIC16F877/876 PROGRAM
MEMORY MAP AND STACK
PC<12:0>
CALL, RETURN
RETFIE, RETLW
13
Stack Level 1
Stack Level 2
Stack Level 8
Reset Vector
0000h
PIC16F87X
FIGURE 2-2: PIC16F874/873 PROGRAM
MEMORY MAP AND STACK
PC<12:0>
CALL, RETURN
RETFIE, RETLW
13
Stack Level 1
Stack Level 2
Stack Level 8
Reset Vector
0000h
On-Chip
Program
Memory
Interrupt Vector
Page 0
Page 1
0004h
0005h
07FFh
0800h
0FFFh
1000h
1FFFh
On-Chip
Program
Memory
Interrupt Vector
Page 0
Page 1
Page 2
Page 3
0004h
0005h
07FFh
0800h
0FFFh
1000h
17FFh
1800h
1FFFh
© 1999 Microchip Technology Inc.
DS30292B-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet 16F873.PDF ] | |
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