Z8F042AHJ020SG Datasheet, PDF (22/282 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
5
Internal Precision Oscillator
The internal precision oscillator (IPO) is a trimmable clock source that requires no exter-
nal components.
Temperature Sensor
The optional temperature sensor produces an analog output proportional to the device tem-
perature. This signal can be sent to either the ADC or the analog comparator.
Analog Comparator
The analog comparator compares the signal at an input pin with either an internal pro-
grammable voltage reference or a second input pin. The comparator output can be used to
drive either an output pin or to generate an interrupt.
External Crystal Oscillator
The crystal oscillator circuit provides highly accurate clock frequencies with the use of an
external crystal, ceramic resonator or RC network.
Low Voltage Detector
The low voltage detector (LVD) is able to generate an interrupt when the supply voltage
drops below a user-programmable level. The LVD is available on 8-pin devices only.
On-Chip Debugger
The Z8 Encore! XP F082A Series products feature an integrated on-chip debugger (OCD)
accessed via a single-pin interface. The OCD provides a rich-set of debugging capabilities,
such as reading and writing registers, programming Flash memory, setting breakpoints and
executing code.
Universal Asynchronous Receiver/Transmitter
The full-duplex universal asynchronous receiver/transmitter (UART) is included in all Z8
Encore! XP package types. The UART supports 8- and 9-bit data modes and selectable
parity. The UART also supports multi-drop address processing in hardware. The UART
baud rate generator (BRG) can be configured and used as a basic 16-bit timer.
Timers
Two enhanced 16-bit reloadable timers can be used for timing/counting events or for
motor control operations. These timers provide a 16-bit programmable reload counter and
PS022827-1212
PRELIMINARY
CPU and Peripheral Overview