MICROCHIP PIC12C672-04I/P

The PIC12C67X devices are low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers with integrated analog-to-digital (A/D) converter and EEPROM data memory (EEPROM on PIC12CE67X versions only). All PIC microcontrollers employ an advanced RISC architecture. The PIC12C67X microcontrollers have enhanced core features, eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches, which require two cycles. A total of 35 instructions (reduced instruction set) are available. Additionally, a large register set gives some of the architectural innovations used to achieve a very high performance. PIC12C67X microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class. The PIC12C67X devices have 128 bytes of RAM, 16 bytes of EEPROM data memory (PIC12CE67X only), 5 I/O pins and 1 input pin.

• Only 35 single word instructions to learn
• All instructions are single cycle (400 ns) except for program branches which are two-cycle
• Operating speed: DC - 10 MHz clock input, DC - 400 ns instruction cycle
• 14-bit wide instructions
• 8-bit wide data path
• Interrupt capability
• Special function hardware registers
• 8-level deep hardware stack
• Direct, indirect and relative addressing modes for data and instructions
• Four-channel, 8-bit A/D converter
• 8-bit real time clock/counter (TMR0) with 8-bit programmable prescaler
• 1,000,000 erase/write cycle EEPROM data memory
• EEPROM data retention >40 years
• In-Circuit Serial Programming (ICSP)
• Internal 4 MHz oscillator with programmable calibration
• Selectable clockout
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
• Programmable code protection
• Power saving SLEEP mode
• Interrupt-on-pin change (GP0, GP1, GP3)
• Internal pull-ups on I/O pins (GP0, GP1, GP3)
• Internal pull-up on MCLR pin
• Selectable oscillator options:
  • INTRC: Precision internal 4 MHz oscillator
  • EXTRC: External low-cost RC oscillator
  • XT: Standard crystal/resonator
  • HS: High speed crystal/resonator
  • LP: Power saving, low frequency crystal
• Low-power, high-speed CMOS EPROM/EEPROM technology
• Fully static design
• Wide operating voltage range 2.5V to 5.5V
• Commercial, Industrial and Extended temperature ranges
• Low power consumption <2 mA @ 5V, 4 MHz, 15 μA typical @ 3V, 32 kHz, <1 μA typical standby current

• Personal care devices
• Security systems
• Low-power remote transmitters/receivers
• Timing functions
• Replacement for "glue" logic and PLDs in large systems
• Coprocessor applications