PIC16F84A

Features:

• Only 35 single word instructions to learn
• All instructions single-cycle except for program
branches which are two-cycle
• Operating speed: DC - 20 MHz clock input
DC - 200 ns instruction cycle
• 1024 words of program memory
• 68 bytes of Data RAM
• 64 bytes of Data EEPROM
• 14-bit wide instruction words
• 8-bit wide data bytes
• 15 Special Function Hardware registers
• Eight-level deep hardware stack
• Direct, indirect and relative addressing modes
• Four interrupt sources:
- External RB0/INT pin
- TMR0 timer overflow
- PORTB<7:4> interrupt-on-change
- Data EEPROM write complete




Pinout






Specifications

Parameter Name	Value
Program Memory Type	Flash
Program Memory (KB)	1.75
CPU Speed (MIPS)	5
RAM Bytes	68
Data EEPROM (bytes)	64
Timers	1 x 8-bit
Temperature Range (C)	-40 to 85
Operating Voltage Range (V)	2 to 6
Pin Count	18

Ambient temperature under bias......................................................................................................-55°C to +125°C
Storage temperature ...................................................................................................................... -65°C to +150°C
Voltage on any pin with respect to V_SS (except V_DD, MCLR, and RA4) ........................................ -0.3V to (V_DD + 0.3V)
Voltage on V_DD with respect to V_SS ......................................................................................................... -0.3 to +7.5V
Voltage on MCLR with respect to V_SS(1) ...................................................................................................-0.3 to +14V
Voltage on RA4 with respect to V_SS ......................................................................................................... -0.3 to +8.5V
Total power dissipation(2) ...............................................................................................................................800 mW
Maximum current out of VSS pin .......................................................................................................................150 mA
Maximum current into VDD pin ..........................................................................................................................100 mA
Input clamp current, I_IK (V_I < 0 or V_I > V_DD).................................................................................................. ± 20 mA
Output clamp current, I_OK (V_O < 0 or V_O > VDD) ........................................................................................... ± 20 mA
Maximum output current sunk by any I/O pin.......................................................................................................25 mA
Maximum output current sourced by any I/O pin .................................................................................................25 mA
Maximum current sunk by PORTA..........................................................................................................................80 mA
Maximum current sourced by PORTA.....................................................................................................................50 mA
Maximum current sunk by PORTB........................................................................................................................150 mA
Maximum current sourced by PORTB ..................................................................................................................100 mA




Description

This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS Flash/EEPROM-based 8-bit microcontroller packs Microchip's powerful PIC16F84A architecture into an 18-pin package. The same device can be used for prototyping and production and the end application can be easily updated without removing the device PIC16F84A from the end product via the ICSP. Easily adapted for automotive, industrial, appliances low power remote sensors, electronic locks and security applications.