GENERAL DESCRIPTION
Zilogs Z86251 StarSight Data Base Engine (DBE) is designed to process extracted data for the StarSight on-screen programming guide.
The Z86251 provides a number of important peripheral functions, such as the IR Blaster to send command signals to the VCR, and low-power management to avoid loss of data.

FEATURES
■ Part              Package                   Speed (MHz)
    Z86251        68-Pin PLCC                    24
■ 4.5- to 5.5-Volt Operating Range
■ 0°C to +70°C Temperature Range
■ Low-Power Consumption
■ Segmented Base Registers
■ DRAM Memory Control and Refresh Logic
■ Power-Down DRAM Data Retention
■ Infrared Transmitter Circuits for TV and VCR Control
■ CRC-32 Encoding and Decoding Logic
■ Watch-Dog Timer (WDT) for Error Recovery
■ I2C Compatible Bus for External Communication
■ Test Multiplexer for Chip Debug
■ On-Chip Crystal Oscillator