Z8F042ASJ020EG2156 Datasheet, PDF (23/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
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operate in One-Shot, Continuous, Gated, Capture, Capture Restart, Compare, Capture and
Compare, PWM Single Output and PWM Dual Output modes.
General-Purpose Input/Output
The Product Line MCUs feature 6 to 25 port pins (Ports A–D) for general- purpose input/
output (GPIO). The number of GPIO pins available is a function of package and each pin
is individually programmable. 5 V tolerant input pins are available on all 
I/Os on 8-pin devices and most I/Os on other package types.
Direct LED Drive
The 20- and 28-pin devices support controlled current sinking output pins capable of driv-
ing LEDs without the need for a current limiting resistor. These LED drivers are indepen-
dently programmable to four different intensity levels.
Flash Controller
The Flash Controller programs and erases Flash memory. The Flash Controller supports
several protection mechanisms against accidental program and erasure, plus factory serial-
ization and read protection.
Non-Volatile Data Storage
The nonvolatile data storage (NVDS) uses a hybrid hardware/software scheme to imple-
ment a byte programmable data memory and is capable of over 100,000 write cycles.
Note: Devices with 8KB of Flash memory do not include the NVDS feature.
Interrupt Controller
The Z8 Encore! XP F082A Series products support up to 20 interrupts. These interrupts
consist of 8 internal peripheral interrupts and 12 general-purpose I/O pin interrupt sources.
The interrupts have three levels of programmable interrupt priority.
Reset Controller
The Z8 Encore! XP F082A Series products can be reset using the RESET pin, Power-On
Reset, Watchdog Timer (WDT) time-out, Stop Mode exit, or Voltage Brown-Out (VBO)
warning signal. The RESET pin is bidirectional, that is, it functions as reset source and as
a reset indicator.
PS022828-0413
PRELIMINARY
CPU and Peripheral Overview