16F84 MICROCHIP [Microchip Technology], 16F84 Datasheet - Page 8

• Manufacturer Part Number: 16F84
• Description: 18-pin Flash/EEPROM 8-Bit Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC16F8X
FIGURE 3-1:
DS30430C-page 8
PIC16F83/CR83
PIC16F84/CR84
Program
Flash/ROM
OSC2/CLKOUT
Bus
512 x 14
Program
OSC1/CLKIN
Memory
1K x 14
Instruction reg
Generation
Instruction
Decode &
Control
Timing
14
PIC16F8X BLOCK DIAGRAM
13
MCLR
5
Start-up Timer
Program Counter
Power-on
Watchdog
Power-up
Oscillator
8 Level Stack
Reset
Timer
Timer
(13-bit)
Direct Addr
V
DD
8
, V
SS
PIC16F83/CR83
PIC16F84/CR84
File Registers
Addr Mux
W reg
ALU
Data Bus
36 x 8
68 x 8
RAM
7
STATUS reg
FSR reg
MUX
7
RAM Addr
Indirect
Addr
8
8
EEPROM Data Memory
EEDATA
I/O Ports
1998 Microchip Technology Inc.
TMR0
Data Memory
EEPROM
EEADR
RA4/T0CKI
64 x 8
RA3:RA0
RB7:RB1
RB0/INT