GENERAL DESCRIPTION
The Z86E73/L73/E74/L74 are ROM-based members of Zilogs Z8® single-chip microcontroller family of infrared (IR) consumer controller processors featuring fast and flexible code execution. The Z86E73/E74 devices offer a one-time programmable (OTP) option.
   
FEATURES   
■ 40-Pin DIP, 44-Pin PLCC/QFP Packages (E73/L73)
    64-Pin DIP, 68-Pin PLCC Packages (E74/L74)
■ 2.0V to 3.9V Operating Range (L73/L74)
    4.5V to 5.5V Operating Range (E73/E74)
■ Low-Power Consumption
    (Typical: 40 mw for L73/L74)
    (Typical: 60 mw for E73/E74)
■ 0°C to +70°C Temperature Range
■ Expanded Register Files (ERF)
■ 31 Input/Output Lines (E73/L73)
    51 Input/Output Lines (E74/L74*)
    *Note: With Auto Latch on Port 4, 5 and 6.
■ Five Prioritized Interrupts with Programmable Polarity
■ Two Comparators
■ 8-Bit Counter/Timer with Two Capture Registers and
    16-Bit Counter/Timer with One Capture Register
■ Watch-Dog Timer (WDT)/Power-On Reset (POR)
■ On-Chip Oscillator that Accepts a Crystal, Ceramic
    Resonator, LC, RC, or External Clock Drive
■ Low-Voltage Detection and Protection
■ 32-KHz Mask Option to Disable Internal Feedback
    Resistor (L73/L74)