DS97DZ80700 P R E L I M I N A R Y 8-1
1
PRELIMINARY PRODUCT SPECIFICATION
Z86C83/C84/E83 1
CMOS Z8
®
MCU
FEATURES
■ 28-Pin DIP, SOIC, and PLCC Packages
■ Clock Speed: 16 MHz
■ Three Expanded Register Groups
■ 8-Channel, 8-Bit A/D Converter with Track and Hold,
and Unique R-Ladder A
GND
Offset Control
■ Z86C84 has two 8-Bit D/A Converters with
Programmable Gain Stages, 3 µs Settling Time
■ Six Vectored, Prioritized Interrupts from Six Different
Sources
■ Two Analog Comparator Inputs with Programmable
Interrupt Polarity
■ Two Programmable 8-Bit Timers, each with a 6-Bit
Programmable Prescaler
■ Power-On Reset (POR) Timer
■ Permanent Watch-Dog Timer (WDT) Option
■ Software-Programmable Pull-Up Resistors (Port 2 Only)
■ On-Chip Oscillator for Crystal, Resonator or LC
■ ROM Protect
GENERAL DESCRIPTION
The Z86C83/C84/E83 are full-featured members of the
Z8
®
MCU family offering a unique register-to-register ar-
chitecture that avoids accumulator bottlenecks for higher
code efficiency than RISC processors.
The Z86C83/C84/E83 are designed to be used in a wide
variety of embedded control applications, such as appli-
ances, process controls, keyboards, security systems, bat-
tery chargers, and automotive modules.
For applications requiring powerful I/O capabilities, the
Z86C83/C84/E83 devices can have up to 21/17 (83/84 re-
spectively) pins dedicated to input and output. These lines
are grouped into three ports, and are configured by soft-
ware to provide digital/analog I/O timing and status signals.
An on-chip, half-flash 8-bit ±1/2 Least Significant Bit (LSB)
A/D converter can multiplex up to eight analog inputs. Un-
used analog inputs revert to standard digital I/O use.
Unique, programmable A
GND
offset control of the A/D re-
sistor ladder compresses the converter's dynamic range
for maximum effective 9-bit A/D resolution.
The Z86C84 has two 8-bit ±1/2 LSB D/A converters. High
and low reference voltages provide precise control of the
output voltage range. Programmable gain for each D/A
converter provides a maximum effective 10-bit resolution
for many tasks.
On-chip 8-bit counter/timers with many user-selectable
modes simplify real-time tasks, such as counting, timing,
and generation of PWM signals.
The designer can prioritize six different maskable, vec-
tored, internal or external interrupts for efficient interrupt
handling and multitasking functions.
Device
ROM
(KB)
RAM*
(Bytes)
I/O
Lines
Voltage
Range
Z86C83 4 237 21 3.0V to 5.5V
Z86E83 4 (OTP) 237 21 3.5V to 5.5V
Z86C84 4 237 17 3.0V to 5.5V
Note: * General-Purpose
