Z86E3016PSG Datasheet, PDF (19/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
1
Z8 CPU Product Overview
The ZiLOG Z8 microcontroller (MCU) product line continues to expand
with new product introductions. ZiLOG MCU products are targeted for
cost-sensitive, high-volume applications including consumer, automotive,
security, and HVAC. It includes ROM-based products geared for high-
volume production (where software is stable) and one-time programma-
ble (OTP) equivalents for prototyping as well as volume production
where time to market or code flexibility is critical (see Table 1 on page 4).
A variety of packaging options are available including plastic DIP, SOIC,
PLCC, and QFP.
A generalized Z8 CPU^® block diagram is shown in Figure 1. The same
on-chip peripherals are used across the MCU product line with the pri-
mary differences being the amount of ROM/RAM, number of I/O lines
present, and packaging/temperature ranges available. This allows code
written for one MCU device to be easily ported to another family mem-
ber.
Key Features
General-Purpose Register File. Every RAM register acts like an accu-
mulator, speeding instruction execution and maximizing coding effi-
ciency. Working register groups allow fast context switching.
Flexible I/O. I/O byte, nibble, and/or bit programmable as inputs or out-
puts. Outputs are software programmable as open-drain or push–pull on a
port basis. Inputs are Schmitt-triggered with autolatches to hold unused
inputs at a known voltage state.
Analog Inputs. Three input pins are software programmable as digital or
analog inputs. When in analog mode, two comparator inputs are provided
with a common reference input. These inputs are ideal for a variety of
common functions, including threshold level detection, analog-to-digital
UM001602-0904
Z8 CPU Product Overview