16LF84A Datasheet PDF - Microchip
| Part Number | 16LF84A | |
| Description | 18-pin Enhanced FLASH/EEPROM 8-bit Microcontroller | |
| Manufacturers | Microchip | |
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M
PIC16F84A
Data Sheet
18-pin Enhanced FLASH/EEPROM
8-bit Microcontroller
© 2001 Microchip Technology Inc.
DS35007B
http://www.Datasheet4U.com
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PIC16F84A
1.0 DEVICE OVERVIEW
This document contains device specific information for
the op eration of t he PI C16F84A d evice. Add itional
information m ay be fo und in th e PIC micro™ Mid-
Range R eference Manual, (DS33023), which may be
downloaded f rom the M icrochip w ebsite. T he R efer-
ence Manual should be considered a c omplementary
document t o thi s d ata sh eet, and is hig hly re com-
mended rea ding for a better u nderstanding o f th e
device a rchitecture a nd operation of the p eripheral
modules.
The PIC16F84A belongs to the mid-range family of the
PICmicro® microcontroller devices. A block diagram of
the device is shown in Figure 1-1.
The program memory contains 1K words, which trans-
lates t o 1024 i nstructions, si nce e ach 14 -bit p rogram
memory word is the same width as each device instruc-
tion. The data memory (RAM) contains 68 bytes. Data
EEPROM is 64 bytes.
There are also 13 I/O pins that are user-configured 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
Table 1-1 details the pinout of the device with descrip-
tions and details for each pin.
FIGURE 1-1:
PIC16F84A BLOCK DIAGRAM
FLASH
Program
Memory
1K x 14
13
Program Counter
8 Level Stack
(13-bit)
Program
Bus 14
Instruction Register
5 Direct Addr
Data Bus 8
RAM
File Registers
68 x 8
7 RAM Addr
Addr Mux
7 Indirect
Addr
FSR reg
STATUS reg
8
EEPROM Data Memory
EEDATA
EEPROM
Data Memory
64 x 8
TMR0
EEADR
RA4/T0CKI
Instruction
Decode &
Control
Timing
Generation
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
MUX
ALU
W reg
8 I/O Ports
RA3:RA0
RB7:RB1
RB0/INT
OSC2/CLKOUT
OSC1/CLKIN
MCLR VDD, VSS
© 2001 Microchip Technology Inc.
DS35007B-page 3
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 16LF84A electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ 16LF84A.PDF Datasheet ] | |
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