Introduction
   The Z8 Encore!® MCU family of products are the first in a line of ZiLOG microcontroller products based upon the new 8-bit eZ8 CPU. The Z8F640x/Z8F480x/Z8F320x/Z8F240x/ Z8F160x products are referred to collectively as either Z8 Encore!® or the Z8F640x family. The Z8F640x family of products introduce Flash memory to ZiLOG’s extensive line of 8-bit microcontrollers. The Flash in-circuit programming capability allows for faster development time and program changes in the field. The new eZ8 CPU is upward compatible with existing Z8 instructions. The rich peripheral set of the Z8F640x family makes it suitable for a variety of applications including motor control, security systems, home appliances, personal electronic devices, and sensors.

FEATUREs
• eZ8 CPU, 20 MHz operation
• 12-channel, 10-bit analog-to-digital converter (ADC)
• 3-channel DMA
• Up to 64KB Flash memory with in-circuit programming capability
• Up to 4KB register RAM
• Serial communication protocols
   – Serial Peripheral Interface
   – I2C
• Two full-duplex 9-bit UARTs
• 24 interrupts with programmable priority
• Three or four 16-bit timers with capture, compare, and PWM capability
• Single-pin On-Chip Debugger
• Two Infrared Data Association (IrDA)-compliant infrared encoder/decoders integrated
   with the UARTs
• Watch-Dog Timer (WDT) with internal RC oscillator
• Up to 60 I/O pins
• Voltage Brown-out Protection (VBO)
• Power-On Reset (POR)
• 3.0-3.6V operating voltage with 5V-tolerant inputs
• 0° to +70°C standard temperature and -40° to +105°C extended temperature operating ranges