L8708H Datasheet PDF - Zilog

GENERAL DESCRIPTION
The Z86LXX family of IR (Infrared) CCP™ (Consumer Controller Processor) Controllers are ROM/ROMless-based members of the Z8® single-chip microcontroller family with 256 bytes of internal RAM. The differentiating factor between these devices is the availability of ROM, and package options. For the 40 and 44-pin devices the use of external memory enables these Z8 microcontrollers to be used where code flexibility is required. Zilog’s CMOS microcontrollers offers fast executing, efficient use of memory, sophisticated interrupts, input/output bit manipulation capabilities, automated pulse generation/reception, and internal key-scan pull-up resistors. The Z86LXX product line offers easy hardware/software system expansion cost-effective and low power consumption.

FEATURES
■ Low Power Consumption - 40 mW (Typical)
■ Three Standby Modes
   – STOP
   – HALT
   – Low Voltage
■ Special Architecture to Automate Both Generation and
   Reception of Complex Pulses or Signals:
   – One Programmable 8-Bit Counter/Timer with Two
      Capture Registers
   – One Programmable 16-Bit Counter/Timer with
      One 16-Bit 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.
■ 32 kHz Oscillator Mask Option