WDC 65C134

The Western Design Center (WDC) W65C134S is an 8-bit CMOS microcontroller based on a W65C02S processor core, which is a superset of the MOS Technology 6502 processor.

W65C134S 8-bit Microcontroller

The W65C134S consists of a fully static 8-bit W65C02S CPU core, 4 KB of ROM containing a machine language monitor, 192 bytes of SRAM, two 16 bit timers, one 16-bit Watch-Dog Timer (WDT) with "restart" interrupt, one UART with baud rate timer, a low power Serial Interface Bus (SIB) configured as a token passing local area network, twenty-two priority encoded interrupts, two crystal inputs (slow 32.768KHz and fast up to 8-MHz), Bus Control Register (BCR) for external memory bus control, interface circuitry for peripheral devices, and many low power features. The W65C134S has been developed for high-reliability applications, as well as where minimum power is required.

Features
  • CMOS low power process
  • Operating ambient temperature range of -40 °C to +85 °C
  • Single 2.8V to 5.5V power supply
  • Static to 8 MHz clock operation, as well as 32.768KHz capability
  • W65C02S compatible CPU
  • 8-bit parallel processing
  • Variable length stack
  • True indexing capability
  • Fifteen addressing modes
  • Decimal or binary arithmetic
  • Pipeline architecture
  • Fully static CPU
  • Single chip microcomputer
  • Many power saving features
  • 56 CMOS compatible I/O lines
  • 4096 x 8 ROM on chip
  • 192 x 8 RAM on chip
  • Low power modes
  • WAIt for interrupt
  • SToP the clock
  • Fast oscillator start and stop feature
  • Twenty-two priority encoded interrupts
  • BRK software interrupt
  • RESET "RESTART" interrupt
  • NMIB Non-Maskable Interrupt input
  • SIB Interrupt
  • IRQ1B level interrupt input
  • IRQ2B level interrupt input
  • 2 timer edge interrupts
  • 7 positive edge interrupt inputs
  • 5 negative edge interrupt inputs
  • Asynchronous Receiver Interrupt
  • Asynchronous Transmitter Interrupt
  • UART 7/8-bit w/wo odd or even parity
  • 16M byte segmented address space
  • 64K byte linear address space
  • 4 x 16 bit timer/counter
  • Bus control register for external memory
  • Internal or external ROM
  • 8 Decoded Chip Select outputs
  • Surface mount 68 and 80 lead packages
  • Real time clock features
  • Time of Day (ToD) clock features

See also

References

    Further reading
    See also: List of books about 65xx microprocessor families
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