Z86L72 Datasheet PDF - Zilog

GENERAL DESCRIPTION
The Z86LX2/CX2 family of IR (Infrared) are ROM/ROMless-based members of the Z8® MCU single-chip microcontroller family with 768 bytes of internal RAM. The differentiating factor between these devices is the availability of RAM, ROM and package options. The use of external memory enables these Z8 microcontrollers to be used where code flexibility is required. Offering the 5V versions (Z86CXX) and gives optimum performance in both the low and high voltage ranges.
   
FEATURES
■ Expanded Register File Control Registers
■ Low Power Consumption - 40 mW (typical)
■ Three Standby Modes:
    – STOP
    – HALT
    – Low Voltage
■ Automatic External ROM Access Beyond 16K
    (Z86LX2/C72 Version)
■ Special Architecture to Automate Both Generation and
    Reception of Complex Pulses or Signals:
    – One Programmable 8-Bit Counter/Timer with Two
        Capture Register
    – One Programmable 16-Bit Counter/Timer with
        One Capture Register
    – Programmable Input Glitch Filter for Pulse
        Reception
■ Five Priority Interrupts
    – Three External
    – Two Assigned to Counter/Timers
■ Low Voltage Detection and Standby Mode
■ Programmable Watch-Dog/Power-On Reset Circuits
■ Two Independent Comparators with Programmable
    Interrupt Polarity
■ On-Chip Oscillator that Accepts a Crystal, Ceramic
    Resonator, LC, RC (mask option), or External Clock
    Drive
■ Mask Selectable 200 kOhms Pull-Ups on Ports 0, 2, 3
    – All Eight Port 2 Bits at one time or Not
    – Pull-Ups Automatically Disabled Upon Selecting
        Individual Pins as Outputs
■ Maskable Mouse/Trackball Interface on P00 Through
    P03 is available on the L72 version.
■ 32 kHz Oscillator Mask Option