Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

PIC16F84A Datasheet(PDF) 7 Page - Microchip Technology

Part # PIC16F84A
Description  18-pin Flash/EEPROM 8-Bit Microcontrollers
Download  124 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F84A Datasheet(HTML) 7 Page - Microchip Technology

Back Button PIC16F84A Datasheet HTML 3Page - Microchip Technology PIC16F84A Datasheet HTML 4Page - Microchip Technology PIC16F84A Datasheet HTML 5Page - Microchip Technology PIC16F84A Datasheet HTML 6Page - Microchip Technology PIC16F84A Datasheet HTML 7Page - Microchip Technology PIC16F84A Datasheet HTML 8Page - Microchip Technology PIC16F84A Datasheet HTML 9Page - Microchip Technology PIC16F84A Datasheet HTML 10Page - Microchip Technology PIC16F84A Datasheet HTML 11Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 124 page
background image
PIC16F8X
© 1998 Microchip Technology Inc.
DS30430C-page 7
3.0
ARCHITECTURAL OVERVIEW
The high performance of the PIC16CXX family can be
attributed to a number of architectural features
commonly found in RISC microprocessors. To begin
with, the PIC16CXX uses a Harvard architecture. This
architecture has the program and data accessed from
separate memories. So the device has a program
memory bus and a data memory bus. This improves
bandwidth over traditional von Neumann architecture
where program and data are fetched from the same
memory (accesses over the same bus). Separating
program and data memory further allows instructions
to be sized differently than the 8-bit wide data word.
PIC16CXX opcodes are 14-bits wide, enabling single
word instructions. The full 14-bit wide program memory
bus fetches a 14-bit instruction in a single cycle. A two-
stage pipeline overlaps fetch and execution of instruc-
tions (Example 3-1). Consequently, all instructions exe-
cute in a single cycle except for program branches.
The PIC16F83 and PIC16CR83 address 512 x 14 of
program memory, and the PIC16F84 and PIC16CR84
address 1K x 14 program memory. All program mem-
ory is internal.
The PIC16CXX can directly or indirectly address its
register files or data memory. All special function
registers including the program counter are mapped in
the
data
memory. An
orthogonal
(symmetrical)
instruction set makes it possible to carry out any oper-
ation on any register using any addressing mode. This
symmetrical nature and lack of ‘special optimal
situations’ make programming with the PIC16CXX
simple yet efficient. In addition, the learning curve is
reduced significantly.
PIC16CXX devices contain an 8-bit ALU and working
register. The ALU is a general purpose arithmetic unit.
It performs arithmetic and Boolean functions between
data in the working register and any register file.
The ALU is 8-bits wide and capable of addition,
subtraction, shift and logical operations. Unless
otherwise mentioned, arithmetic operations are two's
complement in nature. In two-operand instructions,
typically
one
operand
is
the
working
register
(W register), and the other operand is a file register or
an immediate constant. In single operand instructions,
the operand is either the W register or a file register.
The W register is an 8-bit working register used for ALU
operations. It is not an addressable register.
Depending on the instruction executed, the ALU may
affect the values of the Carry (C), Digit Carry (DC), and
Zero (Z) bits in the STATUS register. The C and DC bits
operate as a borrow and digit borrow out bit,
respectively, in subtraction. See the SUBLW and SUBWF
instructions for examples.
A simplified block diagram for the PIC16F8X is shown
in Figure 3-1, its corresponding pin description is
shown in Table 3-1.


Similar Part No. - PIC16F84A

ManufacturerPart #DatasheetDescription
logo
Microchip Technology
PIC16F84A MICROCHIP-PIC16F84A Datasheet
494Kb / 68P
   18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller
1999
PIC16F84A MICROCHIP-PIC16F84A Datasheet
1Mb / 88P
   18-pin Enhanced FLASH/EEPROM 8-bit Microcontroller
2001
PIC16F84A MICROCHIP-PIC16F84A Datasheet
1Mb / 90P
   18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller
11/29/12 2001-2013
PIC16F84A MICROCHIP-PIC16F84A Datasheet
1Mb / 90P
   18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller
11/29/12
PIC16F84A MICROCHIP-PIC16F84A Datasheet
1Mb / 337P
   8-Bit CMOS Microcontrollers
01/18/02
More results

Similar Description - PIC16F84A

ManufacturerPart #DatasheetDescription
logo
Microchip Technology
PIC16F8X MICROCHIP-PIC16F8X_99 Datasheet
1Mb / 124P
   18-pin Flash/EEPROM 8-Bit Microcontrollers
1998 - 1999
PIC16F8X MICROCHIP-PIC16F8X_13 Datasheet
1Mb / 128P
   18-pin Flash/EEPROM 8-Bit Microcontrollers
11/29/12 1996-2013
PIC16F84A-04-P MICROCHIP-PIC16F84A-04-P Datasheet
1Mb / 90P
   18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller
11/29/12
PIC16F84A MICROCHIP-PIC16F84A Datasheet
494Kb / 68P
   18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller
1999
35007B MICROCHIP-35007B Datasheet
1Mb / 88P
   18-pin Enhanced FLASH/EEPROM 8-bit Microcontroller
2001
PIC16F84A MICROCHIP-PIC16F84A_07 Datasheet
1Mb / 88P
   18-pin Enhanced FLASH/EEPROM 8-bit Microcontroller
2001
PIC16F84A MICROCHIP-PIC16F84A_13 Datasheet
1Mb / 90P
   18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller
11/29/12 2001-2013
PIC12F1501-I MICROCHIP-PIC12F1501-I Datasheet
3Mb / 278P
   8-Pin Flash, 8-Bit Microcontrollers
08/02/11
PIC12LF1552 MICROCHIP-PIC12LF1552 Datasheet
4Mb / 260P
   8-Pin Flash, 8-Bit Microcontrollers
2013
PIC12F519 MICROCHIP-PIC12F519_08 Datasheet
1Mb / 96P
   8-Pin, 8-Bit Flash Microcontrollers
2008
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com