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PDF 16A877A Data sheet ( Hoja de datos )
| Número de pieza | 16A877A | |
| Descripción | PIC16A877A | |
| Fabricantes | Microchip Technology | |
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PIC16F87XA
28/40/44-Pin Enhanced Flash Microcontrollers
Devices Included in this Data Sheet:
• PIC16F873A
• PIC16F874A
• PIC16F876A
• PIC16F877A
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 other 28-pin or 40/44-pin
PIC16CXXX and PIC16FXXX microcontrollers
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
• 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)
Analog Features:
• 10-bit, up to 8-channel Analog-to-Digital
Converter (A/D)
• Brown-out Reset (BOR)
• Analog Comparator module with:
- Two analog comparators
- Programmable on-chip voltage reference
(VREF) module
- Programmable input multiplexing from device
inputs and internal voltage reference
- Comparator outputs are externally accessible
Special Microcontroller Features:
• 100,000 erase/write cycle Enhanced Flash
program memory typical
• 1,000,000 erase/write cycle Data EEPROM
memory typical
• Data EEPROM Retention > 40 years
• Self-reprogrammable under software control
• In-Circuit Serial Programming™ (ICSP™)
via two pins
• Single-supply 5V In-Circuit Serial Programming
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Programmable code protection
• Power saving Sleep mode
• Selectable oscillator options
• In-Circuit Debug (ICD) via two pins
CMOS Technology:
• Low-power, high-speed Flash/EEPROM
technology
• Fully static design
• Wide operating voltage range (2.0V to 5.5V)
• Commercial and Industrial temperature ranges
• Low-power consumption
Device
Program Memory
Bytes
# Single Word
Instructions
Data
SRAM
(Bytes)
EEPROM
(Bytes)
I/O
MSSP
10-bit CCP
A/D (ch)
(PWM)
SPI
Master
I2C
USART
Timers
8/16-bit
Comparators
PIC16F873A 7.2K
PIC16F874A 7.2K
PIC16F876A 14.3K
PIC16F877A 14.3K
4096
4096
8192
8192
192 128 22 5
192 128 33 8
368 256 22 5
368 256 33 8
2 Yes Yes
2 Yes Yes
2 Yes Yes
2 Yes Yes
Yes
Yes
Yes
Yes
2/1
2/1
2/1
2/1
2
2
2
2
2001-2013 Microchip Technology Inc.
DS39582C-page 1
1 page  
PIC16F87XA
1.0 DEVICE OVERVIEW
This document contains device specific information
about the following devices:
• PIC16F873A
• PIC16F874A
• PIC16F876A
• PIC16F877A
PIC16F873A/876A devices are available only in 28-pin
packages, while PIC16F874A/877A devices are avail-
able in 40-pin and 44-pin packages. All devices in the
PIC16F87XA family share common architecture with
the following differences:
• The PIC16F873A and PIC16F874A have one-half
of the total on-chip memory of the PIC16F876A
and PIC16F877A
• The 28-pin devices have three I/O ports, while the
40/44-pin devices have five
• The 28-pin devices have fourteen interrupts, while
the 40/44-pin devices have fifteen
• The 28-pin devices have five A/D input channels,
while the 40/44-pin devices have eight
• The Parallel Slave Port is implemented only on
the 40/44-pin devices
The available features are summarized in Table 1-1.
Block diagrams of the PIC16F873A/876A and
PIC16F874A/877A devices are provided in Figure 1-1
and Figure 1-2, respectively. The pinouts for these
device families are listed in Table 1-2 and Table 1-3.
Additional information may be found in the PIC® Mid-
Range Reference Manual (DS33023), which may be
obtained from your local Microchip Sales Representative
or downloaded from the Microchip web site. The Refer-
ence Manual should be considered a complementary
document to this data sheet and is highly recommended
reading for a better understanding of the device architec-
ture and operation of the peripheral modules.
TABLE 1-1: PIC16F87XA DEVICE FEATURES
Key Features
PIC16F873A
PIC16F874A
PIC16F876A
PIC16F877A
Operating Frequency
Resets (and Delays)
Flash Program Memory
(14-bit words)
Data Memory (bytes)
EEPROM Data Memory (bytes)
Interrupts
I/O Ports
Timers
Capture/Compare/PWM modules
Serial Communications
DC – 20 MHz
POR, BOR
(PWRT, OST)
4K
DC – 20 MHz
POR, BOR
(PWRT, OST)
4K
DC – 20 MHz
POR, BOR
(PWRT, OST)
8K
DC – 20 MHz
POR, BOR
(PWRT, OST)
8K
192
128
14
Ports A, B, C
3
2
MSSP, USART
192
128
15
Ports A, B, C, D, E
3
2
MSSP, USART
368
256
14
Ports A, B, C
3
2
MSSP, USART
368
256
15
Ports A, B, C, D, E
3
2
MSSP, USART
Parallel Communications
10-bit Analog-to-Digital Module
Analog Comparators
Instruction Set
Packages
—
5 input channels
2
35 Instructions
28-pin PDIP
28-pin SOIC
28-pin SSOP
28-pin QFN
PSP
8 input channels
2
35 Instructions
40-pin PDIP
44-pin PLCC
44-pin TQFP
44-pin QFN
—
5 input channels
2
35 Instructions
28-pin PDIP
28-pin SOIC
28-pin SSOP
28-pin QFN
PSP
8 input channels
2
35 Instructions
40-pin PDIP
44-pin PLCC
44-pin TQFP
44-pin QFN
2001-2013 Microchip Technology Inc.
DS39582C-page 5
5 Page 
PIC16F87XA
TABLE 1-3: PIC16F874A/877A PINOUT DESCRIPTION (CONTINUED)
Pin Name
PDIP PLCC TQFP QFN I/O/P
Pin# Pin# Pin# Pin# Type
Buffer
Type
Description
RB0/INT
RB0
INT
PORTB is a bidirectional I/O port. PORTB can be
software programmed for internal weak pull-up on all
inputs.
33 36
8
9
TTL/ST(1)
I/O Digital I/O.
I External interrupt.
RB1
34 37
9
10
I/O
TTL
Digital I/O.
RB2
35 38 10 11 I/O
TTL
Digital I/O.
RB3/PGM
RB3
PGM
36 39 11
12
I/O
I
TTL
Digital I/O.
Low-voltage ICSP programming enable pin.
RB4
37 41 14 14 I/O
TTL
Digital I/O.
RB5
RB6/PGC
RB6
PGC
RB7/PGD
RB7
PGD
38 42 15 15
39 43 16 16
40 44 17 17
I/O TTL
TTL/ST(2)
I/O
I
TTL/ST(2)
I/O
I/O
Digital I/O.
Digital I/O.
In-circuit debugger and ICSP programming clock.
Digital I/O.
In-circuit debugger and ICSP programming data.
Legend:
Note 1:
2:
3:
I = input
O = output
I/O = input/output
P = power
— = Not used TTL = TTL input ST = Schmitt Trigger input
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
This buffer is a Schmitt Trigger input when configured in RC Oscillator mode and a CMOS input otherwise.
2001-2013 Microchip Technology Inc.
DS39582C-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet 16A877A.PDF ] | |
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