MICROCHIP PIC16C5X EPROM/ROM-Based 8-bit Microcontroller Series
Devices Included in this Data Sheet:
PIC16C54, PIC16C54A, PIC16C54C, PIC16C56, PIC16C56, PIC16C57, PIC16C57, PIC16C58, PIC16C58
Peripheral Features:
8-bit real time clock/counter (TMR0) with 8-bit programmable prescaler
Power-on Reset (POR)
Watchdog
constructed as-is or customised by a competent home constructor. All functionality is supplied by a PIC16C54 micro-controller at the heart of the module. Schematic, circuit description, printed circuit board design and full source code are provided. Disclaimers The module was designed not for financial gain
constructed as-is or customised by a competent home constructor. All functionality is supplied by a PIC16C54 micro-controller at the heart of the module. Schematic, circuit description, printed circuit board design and full source code are provided. Disclaimers The module was designed not for financial gain
ds 1 key ds 1 index ds 1 ; Remember to change device info if programming a different PIC. device pic16c54,rc_osc,wdt_off,protect_off reset start ; Set starting point in program ROM to zero. org 0 start mov !rb, #11110000b ; cols out, rows in mov !ra, #0 ; ra all outputs :keys call scankeys cje key, #16
CMOS MICROCONTROLLER
Part Number Pins I/O RAM EPROM Oscillator Range Min.Instr.Cycle Available
PIC16C54 18 12 32 x 512 x 25kHz-20MHz 200ns NOW
PIC16C55 28 20 32 x 512 x 25kHz-20MHz 200ns NOW
PIC16C56 18 12 32 x 1024 x 25kHz-20MHz 200ns NOW
PIC16C57 28 20 80 x 2048 x 25kHz-20MHz 200ns NOW
Low-Cost NMOS
showing the microcontroller in position (it’s actually a The first routine, ‘‘initialise’’, comprises PIC16C54,althoughaPIC16C84isrecommended. five Clear File (clrf) instructions which set the contents of five registers to zero. Two of these registers, 05 and 06, relate to out- LISTING 1 put Ports A and B. list
Since MPASM is a universal assembler for all PICmicro devices, an application developed for the PIC16C54 can be easily translated into a program for the PIC16C71. This would require changing the instruction mnemonics that are not the same between the machines (assuming that register and peripheral usage
microcontrollers sup- The MPLAB ICD utilizes the in-circuit debugging capa- ported are: PIC16C5X (PIC16C54 to PIC16C58A), bility built into the FLASH devices. This feature, along TM PIC16C61, PIC16C62X, PIC16C71, PIC16C8X, with Microchip’s In-Circuit Serial Programmingproto- PIC17C42, PIC17C43 and PIC17C44
microcontrollers sup- The MPLAB ICD utilizes the in-circuit debugging capa- ported are: PIC16C5X (PIC16C54 to PIC16C58A), bility built into the FLASH devices. This feature, along TM PIC16C61, PIC16C62X, PIC16C71, PIC16C8X, with Microchip’s In-Circuit Serial Programmingproto- PIC17C42, PIC17C43 and PIC17C44
on-board temperature The PICDEM 1 demonstration board demonstrates the capabilities of the PIC16C5X (PIC16C54 to sensor, four LEDs and sample PIC18F452 and PIC16F877 Flash microcontrollers. PIC16C58A), PIC16C61, PIC16C62X, PIC16C71, PIC16C8X, PIC17C42, PIC17C43 and PIC17C44. All 17.18 PICDEM 3 PIC16C92X necessary
microcontrollers sup- The MPLAB ICD utilizes the in-circuit debugging capa- ported are: PIC16C5X (PIC16C54 to PIC16C58A), bility built into the FLASH devices. This fTMture, along PIC16C61, PIC16C62X, PIC16C71, PIC16C8X, with Microchip’s In-Circuit Serial Programmingproto- PIC17C42, PIC17C43 and PIC17C44
Bild
Bild
Bild
